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phosallolo · 3 years ago

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Download websphere application server 8.5.5 for windows free.How do I download WebSphere Application Server 8.5 5?

Download websphere application server 8.5.5 for windows free.Installing and Configuring WebSphere and

Click to see full answer. Installing WAS 8. Click on Add Repository. Click on Browse and select repository. Click on Ok. Click on Install. Select Version 8. Select как сообщается здесь license agreement and click Next.

You can search for windpws parts by part number or description or browse all parts for a product. Click Download to download your selected parts. On Install Packages, select packages, select the two check boxes for WebSphere Customization Toolbox and his package and version Version 8. Click the Next button. Save the downloads. Extract the contents of the downloaded files. Ensure that you have configured the product repository. Click Install.

Select the following applucation Click Next. What is WebSphere application server used for? WebSphere is a set of Java-based tools from Windowd that allows customers to create download websphere application server 8.5.5 for windows free manage sophisticated business Web sites. Silent Installation of Websphere Application Server 8. Step 2: Unpack the images.

Step 3: Set up the hard and soft file limits. Step 4: Check the OS pre-requisites. Step 7: Record the Response File. Was Liberty a profile? It is very lightweight profile of WebSphere Application Server. Liberty profile downolad a flexible and dynamic profile of WAS which enables windowe WAS server to deploy only required custom features instead of deploying a big set of available JEE components. Apply the changes. Apply changes to the master repository, as websphege below:. How do I know which version of Installation Manager I have?

Open the config. Look for im. For example, if the Installation Manager version is 1. If the icon is not present, take the following steps: Open a terminal window. When the process finishes, you are prompted to log out of your system.

What is Wasnd? Is WebSphere a Web server? More specifically, it is a software framework and middleware that hosts Java-based web applications. Additionally, the use of Java 6 with WAS 8. Is WebSphere a middleware? IBM WebSphere refers to a brand of proprietary computer software products in download websphere application server 8.5.5 for windows free genre of enterprise software known as "application and integration middleware". These software products are used by end-users to download websphere application server 8.5.5 for windows free and integrate applications with other applications.

Is WebSphere open source? While Tomcat has remained a lightweight, open-source servlet container, Websphere has become a large stack-based application server, one part of a larger group of interoperating IBM products under the same brand, including IDEs, portal services, data integration engines and more.

What is difference between Tomcat and WebSphere? Tomcat basically consists of a servlet engine and a JSP engine, while WebSphere is dowmload complete J2EE application server environment consisting of an EJB container, administrative console, connection pooling, etc.

Is WebSphere still used? Applictaion is actually still marketed. С��ылка на продолжение documents influenced wbesphere Declaration of Independence? Co-authors

Для того, великий эксперимент был возобновлен ради поиска ошибки, за гранью пространства и времени. И надо полагать, чтобы уловить его, однако он тотчас собрался с -- Полагаю,-- сказал он,-- что такая ситуация в прошлом не возникла ни разу лишь в силу чистой случайности, который эта встреча наложила на его сознание, задача разрешится более чем наполовину, вероятно.

Но этого следующего раза могло и не .

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infotrellis-blog · 8 years ago

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Thrive on IBM MDM CE

IBM InfoSphere Master Data Management Collaborative Edition provides a highly scalable, enterprise Product Information Management (PIM) solution that creates a golden copy of products and becomes trusted system of record for all product related information.

Performance is critical for any successful MDM solution which involves complex design and architecture. Performance issues become impedance for smooth functioning of an application, thus obstructing the business to get the best out of it. Periodic profiling and optimizing the application based on the findings is vital for a seamless application.

InfoTrellis has been providing services in PIM space over a decade now for our esteemed clientele that is spread across the globe.

This blog post details on optimizing IBM InfoSphere MDM Collaborative Edition application based on the tacit knowledge acquired from implementations and upgrades carried out over the years.

Performance is paramount Performance is one of the imperative factors that make an application more reliable. Application performance of MDM Collaborative Edition is influenced by various factors such as solution design, implementation, infrastructure, data volume, DB configurations, WebSphere setup, application version, and so on. These factors play a huge role in affecting business either positively or otherwise. Besides, even in a carefully designed and implemented MDM CE solution, performance issues creep up over a period of time owing to miscellaneous reasons.

Performance Diagnosis The following questions might help you to narrow down a performance problem to a specific component.

What exactly is slow – Only a specific component or general slowness which affects all UI interactions or scheduled jobs?

When did the problem manifest?

Did performance degrade over time or was there an abrupt change in performance after a certain event?

Answers to the above queries may not be the panacea but provide a good starting point to improve the performance.

Hardware Sizing and Tuning Infrastructure for the MDM CE application is the foundation on top of which lays the superstructure.

IBM recommends a hardware configuration for a standard MDM CE Production server. But then, that is just a pointer towards the right direction and MDM CE Infrastructure Architects should take it with a pinch of salt.

Some of the common areas which could be investigated to tackle performance bottlenecks are:

Ensuring availability of physical memory (RAM) so no or little memory swapping and paging occurs.

Latency and bandwidth between the application server boxes and database server. This gains prominence if the Data Centers hosting these are far and away. Hosting Primary DB and App Servers on Data Center could help here.

Running MDM CE on dedicated set of boxes will greatly help so that all the hardware resources are up for grabs and isolating performance issues becomes a fairly simple process, of course, relatively.

Keeping an eye on disk reads, writes and queues. Any of these rising beyond dangerous levels is not a good sign.

Clustering and Load Balancing Clustering and Load balancing are two prevalent techniques used by applications to provide “High Availability and Scalability”.

Horizontal Clustering – Add more firepower to MDM CE Application by adding more Application Servers

Vertical Clustering – Add more MDM CE Services per App Server box by taking advantage of MDM CE configuration – like more Scheduler and AppServer services as necessary

Adding a Load Balancer, a software or hardware IP sprayer or IBM HTTP Server will greatly improve the Business user’s experiences with the MDM CE GUI application

Go for High Performance Network File System Typically clients go with NFS filesystem for MDM CE clustered environments as it is a freeware. For a highly concurrent MDM CE environment, opt for a commercial-grade, tailor-made high performance network file system like IBM Spectrum Scale .

Database Optimization The performance and reliability of MDM CE is highly dependent on a well-managed database. Databases are highly configurable and can be monitored to optimize performance by proactively resolving performance bottlenecks.

The following are the few ways to tweak database performance.

Optimize database lock wait, buffer pool sizes, table space mappings and memory parameters to meet the system performance requirements

Go with recommended configuration of a Production-class DB server for MDM CE Application

Keeping DB Server and Client and latest yet compatible versions to take advantage of bug fixes and optimizations

Ensuring database statistics are up to date. Database statistics can be collected manually by running the shell script from MDM CE located in $TOP/src/db/schema/util/analyze_schema.sh

Check memory allocation to make sure that there are no unnecessary disk reads.

Defragmenting on need-basis

Checking long running queries and optimizing query execution plans, indexing potential columns

Executing $TOP/bin/indexRegenerator.sh whenever the indexed attributes in MDM CE data model is modified

MDM CE Application Optimization

The Performance in MDM CE application can be overhauled at various components like data model, Server config., etc. We have covered the best practices that have to be followed in the application side.

Data Model and Initial Load

Carefully choose the number of Specs. Discard the attributes that will not be mastered, governed in MDM CE

Similarly, larger number of views, Attribute Collections, Items and attributes slower the user interface screen performance. Tabbed views should come handy here to tackle this.

Try to off-load cleansing and standardization activities outside of MDM solution

Workflow with a many steps can result in multiple problems ranging from an unmanageable user interface to very slow operations that manage and maintain the workflow, so it should be carefully designed.

MDM CE Services configuration

MDM CE application comprises of the following services which are highly configurable to provide optimal performance – Admin, App Server, Event Processor, Queue Manager, Workflow Engine and Scheduler.

All the above services can be fine-tuned through the following configuration files found within the application.

$TOP/bin/conf/ini – Allocate sufficient memory to the MDM CE Services here

$TOP/etc/default/common.properties – Configure connection pool size and polling interval for individual services here

Docstore Maintenance

Document Store is a placeholder for unstructured data in MDM CE – like logs, feed files and reports. Over a period of time the usage of Document Store grows exponentially, so are the obsolete files. The document store maintenance report shall be used to check document store size and purge documents that do not hold significance anymore.

Use the IBM® MDMPIM DocStore Volume Report and IBM MDMPIM DocStore Maintenance Report jobs to analyze the volume of DocStore and to clean up the documents beyond configured data retention period in IBM_MDMPIM_DocStore_Maintenance_Lookup lookup table.

Configure IBM_MDMPIM_DocStore_Maintenance_Lookup lookup table to configure data retention period for individual directories and action to be performed once that is elapsed – like Archive or Purge

Cleaning up Old Versions

MDM CE does versioning in two ways.

Implicit versioning

This occurs when the current version of an object is modified during the export or import process.

Explicit versioning

This kind of versioning occurs when you manually request a backup.

Older versions of items, performance profiles and job history need to be cleansed periodically to save load on DB server and application performance in turn.

Use the IBM MDMPIM Delete Old Versions Report and IBM MDMPIM Estimate Old Versions Report in scheduled fashion to estimate and clear out old entries respectively Configure IBM MDMPIM Data Maintenance Lookup lookup table to hold appropriate data retention period for Old Versions, Performance Profiles and Job History

Best Practices in Application Development

MDM CE presents couple of programming paradigms for application developers who are customizing the OOTB solution.

Scripting API – Proprietary scripting language which at runtime converts the scripts into java classes and run them in JVM. Follow the best practices documented here for better performance

Java API – Always prefer Java API over the Scripting API to yield better performance. Again, ensure the best practices documented here are diligently followed

If Java API is used for the MDM CE application development, or customization, then :

Use code analyzing tools like PMD, Findbung, SonarQube to have periodic checkpoints so that only the optimized code is shipped at all times

Use profiling tools like JProfiler, XRebel, YourKit or VisualVM to constantly monitor thread pools use, memory pools statistics, details about the frequency of garbage collection and so on. Using these tools during resource-intensive activities in MDM CE, like running heavyweight import or export jobs, will not just shed light on inner workings of JVM but offers cues on candidates for optimization

Cache Management

Keeping frequent accessed objects in cache is a primary technique to improvement performance. Cache hit percentage need to be really high for smooth functioning of the application.

Check the Cache hit percentage for various objects in the GUI menu System Administrator->Performance Info->Caches The $TOP/etc/default/mdm-ehcache-config.xml and $TOP/etc/default/mdm-cache-config.properties files can be configured to hold large number of entries in cache for better performance

Performance Profiling A successful performance testing will project most of the performance issues, which could be related to database, network, software, hardware etc. Establish a baseline, identify targets, and analyze use cases to make sure that the performance of the application holds good for long.

You should identify areas of solution that generally extends beyond normal range and few examples are large number of items, lots of searchable attributes, large number of lookup tables.

Frameworks such as JUnit, JMeter shall be used in a MDM CE engagement where Java API is the programming language of choice

About the author

Sruthi is a MDM Consultant at InfoTrellis and worked in multiple IBM MDM CE engagements. She has over 2 years of experience in technologies such as IBM Master Data Management Collaborative Edition and BPM.

Selvagowtham is a MDM Consultant at InfoTrellis and plying his trade in Master Data Management for over 2 years. He is a proficient consultant in IBM Master Data Management Collaborative Edition and Advanced Edition product.

#InfoTrellis #MDM #master data management

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siva3155 · 6 years ago

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300+ TOP IBM WEBSPHERE Interview Questions and Answers

IBM WEBSPHERE Interview Questions for freshers and experienced :-

1. What is web sphere? The word web sphere popularly refers to IBM middleware technology products. Web sphere is known for its turn key operation in e business applications. It has run time components and tools which can help in creating applications which run on WAS. WAS refers to web sphere application server. 2. What is web sphere commerce? IBM web sphere commerce has a single platform which offers complete ecommerce solutions to developers. It can be very productive if you are planning to do business with consumers, business and indirectly through channel partners. This can be used to perform business with consumers, business and channel partners altogether. 3. Explain about the architecture of web sphere? Web Sphere is built on three main components they are Database J2EE application server A web server The databases which it supports are DB2 Oracle Cloudscape Application server is IBMWAS and the supported web servers are IBM server Microsoft IIS Sun web server 4. State some of the features present in web sphere? Some of the features which are present in web sphere are: - Order management Web sphere commerce accelerator Analytical and business intelligence Open standards such as Java, EJB, etc Web sphere commerce payments and customer care, etc 5. Explain about IBM Web Sphere edge server? Web sphere edge server is used to improve the performance of web based systems. It can be used as forward or proxy server. Basically four components are present in the web sphere they are Network dispatcher, Caching proxy, Content distribution and application service at the edge. 6. Explain about extended deployment? Web sphere application server extended deployment increases the functionality of the server in two main areas they are manageability and performance. Dynamic virtualization between servers is possible with the help of XD. A stand alone distributed cache was added to it under the performance header, it is known as Object Grid. 7. Explain about the security features present in WAS? Security model for web sphere is primarily based on JAVA EE security model. It also depends upon the operating system. User authentication and authorization mechanisms are also provided in WAS. Light weight third party authentication mechanism is the main security feature present in WAS. 8. What is asymmetric clustering? Asymmetric clustering applications are primarily used in electronic trading systems employed in banks. Some of the features are, partitions can be declared during run time and are usually run on a single cluster at a time. Work specific to a particular can be routed to that cluster. 9. Explain the various Administrator benefits using Web sphere? Web sphere almost reduces the work of server administrator as he can manage load on servers efficiently without any hassles. It also gives him flexibility to divide the load and applications among different server farms. He can also predict about the incoming load on servers. Email alerts, restart options, memory leak detection, etc. 10. Explain about caching proxy of IBM Web sphere Edge sphere? A caching proxy can be configured in forward direction or as a proxy. Content requested by the user is cached by edge before sending or adhering to the query. Page fragments arising from JSP or servlets are cached by Edge and the caching process is slow. Performance and scalability of J2EE applications can be increased by edge.

IBM WEBSPHERE Interview Questions 11. Explain about the network deployment feature present in WAS? Managing singletons will be a thing of the past and it also provides hot recovery of singletons which makes you forget about your GC collected singletons. Transaction logs can stored on a shared file system. For clustering run time operations deployment manager`s role was eliminated. J2EE failover support and cell configuration support is also present. 12. Explain about IBM web sphere integration developer? Web sphere integration developer provides an IDE to build applications based on service oriented architecture. Web sphere process server and web sphere ESB were built with WID. WID was built with RAD Eclipse based technology. 13. Explain about compute Grid? Compute grid is also known as Web sphere batch. Web sphere extended deployment offers a Java batch processing system called as Compute Grid. This forms an additional feature to Web sphere network environment. Various features are provided which help a developer to create, manage and execute batch jobs. Job scheduler, xJCL, batch container and batch programming controller. 14. Explain about web sphere MQ Real time transport? This feature is very useful in instant messaging across different clients through intranet and internet. This supports high volume and high performance across different clients. It uses the concept of light weight transport which is again based on IP rather than the queue process. 15. Explain about Web sphere MQ JMS Provider? Web sphere MQ and Web Sphere Business integration manager Broker are very useful in providing Java messaging services to wide range of clients (publisher –subscribe, point to point). Java classes are chiefly responsible for translating the API calls to API`s defined by web sphere. It is very useful to have knowledge of Web sphere MQ for proper configuration. 16. Explain the attribute CHANNEL in web sphere MQ? CHANNEL specifies the name of the server connection channel. Generally this is Web Sphere MQ network abstraction. The default standard used by CHANNEL is SVRCONN which is the server connection channel. This server is generally used to communicate to the queue manager by the client. 17. Is the naming of connection factory independent of the name specified by JMS client? Yes, the naming of connection factory is independent of the name specified by JMS client. This is made possible by WAS (Web sphere application server) with its resource references. It isolates the application from object names. This feature is important because it gives us the flexibility to change the administered object without changing the JMS client code. 18. How do you specify a jar file to be used by the application, consider that you have many jar files in your system? classloader 19. What is a managed node? Node with NodeAgent 20. What is a managed webserver? Remote webserver access through local (dmgr/cell) 21. What about master repository? deployment manager contains the MASTER configuration and application files. All updates to the configuration files should go through the deployment manager. 22. Tell me IHS executable files, means bin directory files? Apache, ApacheMonitor, htpasswd, htdigest, htdbm, ldapstash, httpd.exe 23. Why given the httpd.conf file to installation of plug-in? identify the web server (port, virtual hosts) to configure the web server definition 24. How to configure remote system httpd.conf file? select web server machine (remote) 25. Several types of log files in the appserver? system out, system err, trace, native out , native err, activity. 26. websphere packages? express, base, network deployment 27. What is the profile? profiles are a set of files that represent a websphere application server configuration. 28. What is the trace? A trace is an informational record that is intended for service engineers or developers to use. As such, a trace record might be considerably more complex, verbose and detailed than a message entry. 29. What is heap memory? Objects storage space for objects references created at run time in a jvm is heap memory. 30. Out of memory exception is there, how to handle that exception? To incrise heap memory size 31. What about IHS? IHS (IBM HTTP Server) is one of the web servers. It serves the static content only and it takes up only http requests. 32. What about plug-in? plug-in is one of the modules it is interface between application server and web server, the plug-in process receives the request from the client first. If the request is for dynamic content, the plug-in diverts the request to the websphere application server. If the request is for static content, the plug-in forwards it to the Http server. 33. What is the global security? it provides the authentication and authorization for websphere application server domain (administration client or console). 34. How to configure the global security? open console and then select security option in the right side menu, and then select localOs registry in the user registry, then enter the username, passwords. And again select global security then ltpa option then provide the password, then save the configuration. And restart the deployment server and then relogin the console. 35. What is SSL? ssl is a protocol for providing encrypted data communications between two processes. 36. What is PMI? How to configure PMI? monitoring and tuning–>PMI–>select any process (server1, nodeagent, dmgr) and then enable PMI–>then apply and then save. Select performance viewer–>current activity and then select enabled process and click the start monitoring button after that process select. 37. What is the UNIX command of all display server processes? ps –ef| grep java 38. What is node? logical group of servers. 39. How to start the server? startserver.sh server1 40. How you get nodeagent……what you have to install to get nodeagent? Custom Profile 41. How to add the node? addnode.sh 8879 42. What is the application server? The application server provides a runtime environment in which to deploy, manage, and run j2ee applications. 43. What is the node? A node corresponds to a physical computer system with a distinct IP host address.The node name is usually the same as the host name for the computer. 44. What is a managed webserver? Remote webserver access through local (dmgr/cell) 45. How many types of profiles are in nd product? 1.deployment manager profiles 2.application server profiles 3.custom profile 46. What is diffrence b/w dmgr and other profiles? dmgr app custom 1.its used for administration 1.admin console is there 1.plain node purpose of remaining profiles 2.initially one app server there 2.empty node 2.it supports the distributed 3.work independently environment. 4. Put applications 3.it is not included app server 4.admin console is there 5.work independently 6.do not put applications 47. Diff b/w 5.0 and 6.0? Web Sphere Studio 3.5, comes up with Visual Age for Java. WSAD 5.0 supports J2EE 1.3 java specifications. RAD 6.0 supports J2EE 1.4 and integrated with Eclipse 3.0, UML Visual Editor, Tomcat Jakarta, Ant scripting, EJB universal test client and SOA tools. 48. What is the difference between web server and application server? Application Server: takes care of Security, Transaction, Multithreading, Resource pooling, load balancing, clustering, performance, highly availability, scalability, etc. Exposes business logic to client applications through various protocols, possibly including HTTP. Supports deployment of .war and .ear files Application server = web server + EJB container. 49. Diff b/w weblogic and websphere? Both BEA Weblogic and IBM’s WebSphere provide J2EE based application servers which are competitors. WebSphere leverages more on connectivity issues with MQ and legacy systems with strong dominance in J2EE. 50. Some problem is there in web server, so this information which log file contain? http.log, plugin.log 51. What is jdbc? jdbc is a low level pure java api used to execute sql statements. 52. What is datasource? A data source is associated with a jdbc provider that supplies the specific jdbc driver implementation class 53. What is diff b/w type4 and type2? type4 type2 1. It is pure java oriented 1.it is not a pure java oriented driver 2.require client side software 2.no need any client software 54. Some application not accessing, so what is the problem? This information which log file contains? systemout, systemerr 55. In type3 client software which machine you have install? server side machine 56. two databases there (oracle and db2),so I want 3 datasources for oracle and 2 data sources for db2 so create 3 datasource names for oracle and 2datasourcename for db2 is possible or not? possible 57. What is jndi? we can register resources in the application server’s java naming and directory interface (jndi) namespace. Client applications can then obtain the references to these resource objects in their programs. 58. Why use the boostrap port number? client applications use the bootstrap port to access websphere’s built-in object request broker (orb) to use enterprise java beans in applications installed on the application server. The java naming and directory interface service provider url used by the client application needs to reference the bootstrap port to obtain an initial context for looking up ejb’s it wants to use. (For communicate two servers) 59. What are the appserver components? admin server, web container, ejb container,j2c service, naming server, messaging engine, security server. 60. How to start the server? startserver.sh server1 61. Packages of websphere? express, base, network deployment 62. What is webcontainer? The web container provides a runtime environment for servlets, jsp’s, javabeans, and static content. 63. How to find out free diskspace from command prompt? du -sk (kb) du -sm (mb) 64. How to find out certain server configuration details like port no, server name, node name, pid? through admin console. 65. Configure the plug-in through admin console is possible or not? possible 66. Where to set the path? environments–>websphere variables 67. Application installed but not working. What are troubleshooting steps? see jvm & application are up, check plugin-cfg.xml file for the root context used by the web application if it does not exist generate plugin and restart web server. 68. Applications installed fine, also generated plugin, but application still not working, in this case which log to see? plugin.log 69. Default admin port? 9060, ssl 9043 70. Default bootstrap port? 2809 71. How to hit application without hitting the web server? webcontainer port on application server 72. In how many ways you can perform administration? console,,,JMX 73. No of ways of doing deployments? Admin console…..jython (jacl) scripts 74. What is CellDiscoveryAddress Node uses this port to talk to DMGR 75. What is NodeDiscoveryAddress DMGR uses this port to talk to node 76. How websphere discovers a change in JSP and compiles it? There is an algorithm that websphere uses to find the timestamp of .jsp and .class files. It checks that timestamp of .class file is always later than its corresponding .jsp file. 77. how do you specify a jar file to be used by the application, consider that you have many jar files in your system? classloader IBM WEBSPHERE Interview Questions with Answers Pdf Download Read the full article

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cvwing · 6 years ago

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Cloud Engineer

Job title: Cloud Engineer Location: El Dorado Hills, CA Duration: 6+months Interview mode: Telephonic / Skype Required Skills: MUST HAVE HEALTHCARE DOMAIN EXPERIENCE Job Description : 7+ years experience in server operating systems including RedHat Enterprise Linux, Oracle Linux, Solaris, and Windows Server Solid experience with 3 more of the following: IBM WebSphere Application Server, Enterprise Service Bus, MQ, and IBM DataPower, EDI, SalesForce, Informatica and batch processing in the Healthcare vertical 3+ years experience with and strong understanding of server infrastructure technologies including VMware server virtualization, HP/IBM server hardware, and storage and networking technologies related to server infrastructure Extensive experience with designing, implementing, deploying and supporting enterprise-level solutions, including On-Premise, Off-Premise and Cloud-based solutions Experience with DB2, Oracle, and SQL database technologies Strong ability to analyze, consolidate and communicate complex technical topics to all levels of staff (including but not limited to IT executives, business/technical managers, developers and system administrators) in verbal and written form Demonstrated experience in designing complex business critical software solution Strong ability to build partnerships, influence others and earn the respect of technical personnel across application and infrastructure teams -- Reference : Cloud Engineer jobs source http://cvwing.com/jobs/technology/cloud-engineer_i5617

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nox-lathiaen · 6 years ago

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Cloud Engineer

Job title: Cloud Engineer Location: El Dorado Hills, CA Duration: 6+months Interview mode: Telephonic / Skype Required Skills: MUST HAVE HEALTHCARE DOMAIN EXPERIENCE Job Description : 7+ years experience in server operating systems including RedHat Enterprise Linux, Oracle Linux, Solaris, and Windows Server Solid experience with 3 more of the following: IBM WebSphere Application Server, Enterprise Service Bus, MQ, and IBM DataPower, EDI, SalesForce, Informatica and batch processing in the Healthcare vertical 3+ years experience with and strong understanding of server infrastructure technologies including VMware server virtualization, HP/IBM server hardware, and storage and networking technologies related to server infrastructure Extensive experience with designing, implementing, deploying and supporting enterprise-level solutions, including On-Premise, Off-Premise and Cloud-based solutions Experience with DB2, Oracle, and SQL database technologies Strong ability to analyze, consolidate and communicate complex technical topics to all levels of staff (including but not limited to IT executives, business/technical managers, developers and system administrators) in verbal and written form Demonstrated experience in designing complex business critical software solution Strong ability to build partnerships, influence others and earn the respect of technical personnel across application and infrastructure teams -- Reference : Cloud Engineer jobs Source: http://jobrealtime.com/jobs/technology/cloud-engineer_i4181

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ebaggusa · 6 years ago

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Cloud Engineer

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jobsaggregationcom · 6 years ago

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Cloud Engineer

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linkhello · 6 years ago

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Cloud Engineer

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jobrealtimeco · 6 years ago

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Cloud Engineer

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siva3155 · 6 years ago

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300+ TOP Websphere Interview Questions and Answers

Websphere Interview Questions for freshers experienced :-

1. What is websphere? The moment you ask this question, the first question that comes to mind is WebSphere applicaiton server. In reality, WebSphere is the name of a product family. IBM has many more products under the brand name WebSphere. WebSphere Application Server , WebSphere MQ, WebSphere Message broker, WebSphere business modeler, WebSphere process Server, WebSphere business monitor, WebSphere integration developer, WebSphere partner gateway are some of the products under this brand name. 2. Whats is a profile in websphere Application Server? When you install WebSphere application server, executable files and configurations files are seperated. This allows you install the product once and create multiple sets of configurations which uses the same underlying core executables of the websphere application server installation. These are the profiles in websphere application server. As you know, there are many types of profiles and you can create multiple profiles. 3. What does nodeagent do in websphere Application Server? We will have one nodeagnet per one node. The node agent acts as an mediator between the Deployment manmager and the node. 4. What is Sync in websphere Application Server? WebSphere application server stores all the configuration data in one central location knows as 'Master repository'. And every node/server will have the local configuration repository. The sycn process make sure that the configuration in both local and master repositories are same and in-sync. The sync is a one dimentional process means, it will sync the configurations only from Master repository ==> local repository. 5. What is websphere plug-in for web server and where do i need to install the plug-in? It is common practise to have web and app servers on different machines. WebSphere provides a plug-in which enables web server to talk to application server, this is known as web server plug-in. Web server plug-in will have a configuration file named plugin-config.xml which will have referenes to all the servers, clusters, applications, virtual hosts of the websphere application server. You can generate this configuration file from administration console, servers -->web servers. Select a web server and click generate plugin configuration file and then propagate the plugin. This plug-in needs to be installed on the web server machine 6. I don't have WebSphere installed on my web server how do i add to the websphere administration console ? If you like to add your web server to that WebSphere administration console, you can do that by creating a unmanaged node and then add from servers-->web servers 7. Do i need a web server if i have a websphere application server? Web Server and WebSphere application server provide two different functionalities. WebSphere application server do has an inbuilt web server functionality but it is recomended to use a seperate web server for many reasons. Some of them are: 1. By seperating web and application server activities, your application serving environment is more secure. 2. Using the webserver you can loadbalance the requests between multiple application servers. 8. How do edit/modify the property/configuration files? It is recomended to modify all the configurations using the administration console. When you need to make any configuration changes, you need do the apply changes and sync them. Any changes you do at local repository level are discarded upon the next restart of that server because the sync is always from DMGR to local repository and changes are not saved to master repository. For example, if you edit a configuration file of server1 and restart it... the changes are lost. When the server starts it syncs the configuration from master repository. 9. What happens if my DMGR is not running? DMGR is the single point of failure in WebSphere network deployment model. Even if DMGR is down, rest of the server will contine to run and serve the applications. However, anychanges you make in this situation are not saved to master configuration repository. 10. I installed a new application, what do i need to do before i can access it from the web server URL? When you install a new application or update an application, your web server need to be aware of the changes. Which means you need to update the web server plug-in configuration file. So after a successful installation of an application with mapping to web server, you need to regenerate the plug-in configuration file and propagate it to web server. 11. what is a connecting pool ? a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required. Connection pools are used to enhance the performance of executing commands on a database. In connection pooling, after a connection is created, it is placed in the pool and it is used over again so that a new connection does not have to be established. If all the connections are being used, a new connection is made and is added to the pool. Connection pooling also cuts down on the amount of time a user must wait to establish a connection to the database. 12. What is virtual host in websphere application server? Virutal host is a configuration not a physical one. A configuration that lets a single machine resemble multiple host machines. Each virtual host has a logical name and a list of one or more DNS host aliases by which it is known. By deafult, we wull have a default_house and admin_host virtual hosts defined in websphere application server. 13. how do i connect my application to talk to a database? To achive this , you need to create a JDBC provider and datasource. The JDBC provider object encapsulates the specific JDBC driver implementation class for access to the specific vendor database of your environment. The data source object supplies your application with connections for accessing the database. The best way to learn more about this task is, login to administration console -->guided activities --> connecting to a database. 14. How can i make sure that my servers are available while restarting a cluster? Use the option ripplestart ... It first stops and then restarts each member of the cluster. 15. I've made some changes to my applicaiton's web.xml , how and where should i update this file? You can do this from the administration console. Go to enterprise applications -->select your application and click update. on the next panel, you'll have option to update the entire application, a single module or even a single file or multiple files. Select the single file option and specify the file's path you like to update . Specify a relative path to the file that starts from the root of the war/ear file. So it looks something like this : app1.war/WEB-INF/web.xml 16. How do i minimize the downtime while i'm updating the applications ? Use rollout update option. This option sequentially updates an application on multiple cluster members across a cluster. After you update an application's files or configuration, click Rollout Update to install the application's updated files or configuration on all cluster members of a cluster on which the application is installed. Rollout update will save the application configurations then stops the cluster members on a node then syncs the configuration and stat the clusters members on that node. Then it proceeds to the next node and does the same steps. 17. We are getting a 'class not found' and developers like to know, if that class is being loaded or not. how can i assist them troubleshoot the issue? WebSphere administration console has an utility using which you can see what classes are loaded at what scope for an application. Go to Troubleshooting -->class loader viewer and select the module. 18. We have some issue with our application server and we tried killing it using kill-9 command, the process disappeared for few seconds but it is back again. We did not start the server but it started. What would be the reason? Servers > Application Servers > server_name. Then, under Server Infrastructure, click Java and Process Management > Process Definition > process > Monitoring Policy. Here we have an option Automatic Restart, this Specifies whether the process should restart automatically if it fails. On distributed systems, the default is to restart the process automatically. 19. Is there a way i can start my server along with nodeagent ? Servers > Application Servers > server_name. Then, under Server Infrastructure, click Java and Process Management > Process Definition > process > Monitoring Policy. Here we have an option Node Restart State which specifies the desired behavior of the servers after the node completely shuts down and restarts. STOPPED - node agent does not start the server. RUNNING - the node agent always starts the server PREVIOUS - the node agent starts the server only if the server was running when the node agent . 20. Are there any differences between Weblogic and Websphere? Webpshere tends to focus more on integration, connectivity and web services. it has rich implementation of J2EE, better performance, more extensive integration and transaction management. In terms of trnsaction weblogic is having default transaction attribute as ’supports’, but websphere does not have any default transaction attribute. 21. How to choose websphere over other application servers? Selecting application server is part of architechtural process when infrastructure is defined. It depends on several facots: External systems your application will be interacting Type of application you have Target availability of system. Corporate standards Budget. 22. What are deployment descriptors? How many types of Deployment descriptors are available? What are they? Deployment descriptor is an XML file that describes how to deploy a module or application by specifying configuration and container options. For example, an EJB deployment descriptor passes information to an EJB container about how to manage and control an enterprise bean. There are two types of deployment descriptor in websphere: Web application deployment descriptor and portlet deployemnt descriptor Portlets are packaged as WAR files with a web application deployment descriptor (web.xml). This defines each portlet as a servlet within the web application, including unique identifiers for each portlet, the portlet class, and initialization parameters. 23. How many ways can you deploy applications in websphere? Directly copy files to deployedapplication folder in websphere- hot deployment. use websphere specific ant tasks and building automated scripts for deploying application. through administration console. 24. What is the difference between web server and application server? ApplicationServer: takes care of Security, Transaction, Multithreading, Resource pooling, load balancing, clustering, performence, highly availability, scalability, etc. Exposes business logic to client applications through various protocols, possibly including HTTP. Supports deployment of .war and .ear filesApplication server = webserver + EJB container. Webserver: handles HTTP protocol. Receives HTTP request, it responds with an HTTP response. 25. How to import jaxp package in IBM WSAD? open WSAD go to project click properties select javaBuildPath add any jar file like jaxp select add external jars. 26. How to implement JDBC-ODBC bridge driver (Type 1) in Websphere? If you use JDBC type (I) driver you dont need to add any driver in websphere. you simply created DSN and use it locally, same we use java class, if you use Type(2) and Type(4) so first go to admin console then go to connection, then add driver there fill other info like conn. size, uname pass, max conn. and connect it to you applications. 27. Is there any difference between weblogic and websphere? Webpshere tends to focus more on integration, connectivity and web services. it has rich implementation of J2EE, better performance, more extensive integration and transaction management. In terms of trnsaction weblogic is having default transaction attribute as ’supports’, but websphere does not have any default transaction attribute. 28. What are the different application servers and Web Servers supporting J2EE technologys? JBoss Is an Application Server that supports J2EE IBM Websphere and BEA WebLogic servers are a combination of Application Server, Web Server & container Jakarta Tomcat is a Servlet container and a Web server. Apache Sever is a Web server 29. What Development Environment(s) are available to develop applications for WebSphere? IBM provides several industrial strength development environments based on Eclipse development framework the current IDE is Rational Developer for Websphere. Applications can also be developed with the Websphere Application Server Toolkit and third party tools like Jbuilder, and Eclipse/ANT etc. 30. What type of files are required to deploy an application into Websphere. How can they be installed? WAR or EAR files. Can be installed using Administration Console or scripts. 31. How would use ensure WebSphere server logs are created on a different drive than the installation root? Change the WebSphere server's server variables using the Administrative Console or use scripts. 32. What is virtual host in websphere application server? Virtual host is a configuration not a physical one. A configuration that lets a single machine resemble multiple host machines. Each virtual host has a logical name and a list of one or more DNS host aliases by which it is known. By default, we wull have a default_house and admin_host virtual hosts defined in websphere application server. 33. how do i connect my application to talk to a database? To achive this , you need to create a JDBC provider and datasource. The JDBC provider object encapsulates the specific JDBC driver implementation class for access to the specific vendor database of your environment. The data source object supplies your application with connections for accessing the database. The best way to learn more about this task is login to administration console –> guided activities –> connecting to a database. 34. How can i make sure that my servers are available while restarting a cluster? Use the option ripplestart … It first stops and then restarts each member of the cluster. 35. I’ve made some changes to my applicaiton’s web.xml , how and where should i update this file? You can do this from the administration console. Go to enterprise applications –>select your application and click update. on the next panel, you’ll have option to update the entire application, a single module or even a single file or multiple files. Select the single file option and specify the file’s path you like to update. Specify a relative path to the file that starts from the root of the war/ear file. So it looks something like this: app1.war/WEB-INF/web.xml 36. How do i minimize the downtime while i’m updating the applications? Use rollout update option. This option sequentially updates an application on multiple cluster members across a cluster. After you update an application’s files or configuration, click Rollout Update to install the application’s updated files or configuration on all cluster members of a cluster on which the application is installed. Rollout update will save the application configurations then stops the cluster members on a node then syncs the configuration and stat the clusters members on that node. Then it proceeds to the next node and does the same steps. 37. We are getting a ‘class not found’ and developers like to know, if that class is being loaded or not. how can i assist them troubleshoot the issue? WebSphere administration console has a utility using which you can see what classes are loaded at what scope for an application. Go to Troubleshooting –>class loader viewer and select the module. 38. We have some issue with our application server and we tried killing it using kill-9 command, the process disappeared for few seconds but it is back again. We did not start the server but it started. What would be the reason? Servers > Application Servers > server_name. Then, under Server Infrastructure, click Java and Process Management > Process Definition > process > Monitoring Policy. Here we have an option Automatic Restart, this Specifies whether the process should restart automatically if it fails. On distributed systems, the default is to restart the process automatically. 39. What is a profile in websphere Application Server? When you install WebSphere application server, executable files and configurations files are separated. This allows you install the product once and create multiple sets of configurations which use the same underlying core executables of the websphere application server installation. These are the profiles in websphere application server. As you know, there are many types of profiles and you can create multiple profiles. 40. Do i need a web server if i have a websphere application server? Web Server and WebSphere application server provide two different functionalities. WebSphere application server do has an inbuilt web server functionality but it is recommended to use a separate web server for many reasons. Some of them are: 1. By seperating web and application server activities, your application serving environment is more secure. 2. Using the webserver you can load balance the requests between multiple application servers. 41. How do edit/modify the property/configuration files? It is recommended to modify all the configurations using the administration console. When you need to make any configuration changes, you need do the apply changes and sync them. Any changes you do at local repository level are discarded upon the next restart of that server because the sync is always from DMGR to local repository and changes are not saved to master repository. For example, if you edit a configuration file of server1 and restart it… the changes are lost. When the server starts it syncs the configuration from master repository. Websphere Questions and Answers Pdf Download Read the full article

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