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aws101training · 4 years ago

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My Experience, Feedback, And Tips for the AWS Developer Associate Exam

I passed the AWS Certified Developer Associate test on my first try a few weeks ago. My second attempt at the trial was having previously obtained AWS Developer Associate certification around four years ago. Since then, the test has undoubtedly altered. In the past, you could easily pass the test using knowledge from the AWS Certified Solutions Architect Associate and a few extra facts about Amazon DynamoDB. The latest exam is unquestionably more developer-focused, with questions evaluating your grasp of Developer Tools, development best practices, and code examples.

I still don't think you need a solid background in development to pass this exam. Indeed, my experience is in Enterprise Solutions Architecture rather than programming. You will need to comprehend some basic code examples, such as JSON code, configuration files, and IAM policy documents, although these are pretty simple. This is a credential that anybody, regardless of background, may obtain with the proper training.

In this post, I'll go through the test blueprint, provide some input from my exam experience, and offer some advice on effectively preparing for this exam. Of course, all exam takers must sign a non-disclosure agreement (NDA) that precludes me from discussing exam subject specifics.

General Information About the Exam:

· AWS Certified Developer Associate is an abbreviation for Amazon Web Services Certified Developer Associate

· The length of the questionnaire is 65 questions.

· Duration: 130 minutes

· Passing grade: 720 points out of a possible 1000 points.

· On the test, there are two sorts of questions:

· Multiple-choice: There is one correct answer and three wrong answers (distractors)

· Multiple response: Has two or more accurate replies from a set of five or more possibilities. (I only saw four of them out of 65 questions.)

· Exam Guide for the AWS Certified Developer Associate

What should I study?

Here is a list of services and some crucial subjects I believe you should learn before taking the exam. There is a strong emphasis on serverless application development, so make sure you are well-versed in the first five services listed below.

Listed in ascending order of significance (the first five services made up over 50 percent of my exam)

AWS LAMBDA (10–15 % OF THE EXAM)

Types of invocation

· Using event source mappings and notifications

· X-Ray concurrency and throttling, as well as Amazon SQS DLLs

· Aliases and variants

· The use of blue and green deployment

· VPC connection packaging and deployment (with Internet/NAT GW)

· ELB target Lambda

· Dependencies

DYNAMODB AMAZON (10 percent OF THE EXAM)

· Query vs. Scans (and the APIs, parameters you can use)

· Secondary indices at the local and global levels

· Calculating RCUs (Read Capacity Units) and WCUs (Write Capacity Units) (WC)

· Best techniques for performance and optimization

· Case studies (for example, session state, key/value data storage, and scalability)

· Streams in DynamoDB

· Use with Lambda and API Gateway in a serverless app.

· Use cases for DynamoDB Accelerator (DAX)

AMAZON API GATEWAY (8%–10% OF THE EXAM)

· Authorizers for Lambda, IAM, and Cognito

· Cache invalidation

· Types of integration: proxy vs. bespoke / AWS vs. HTTP Caching

· importing and exporting Swagger standards for OpenAPI

· Variables at each stage

· Metrics of performance

AWS COGNITO (7%–8% OF THE EXAM)

· Identity pools vs. User pools

· An identity that has not been authenticated

· AWS Cognito Sync with Cognito Web Identity Federation Using MFA

AMAZON S3 (7%–8% OF THE EXAM)

· Encryption – needs to unmake sure you understand S3 encryption well before taking the exam!

· Versioning Data Copying Data Lifecycle Rules S3 Transfer Acceleration

IDENTITY AND ACCESS MANAGEMENT (IAM) ON AMAZON IAM POLICIES AND ROLES

· Access to multiple accounts

· API calls for multi-factor authentication (MFA)

· IAM Roles in EC2 (instance profiles)

· Roles vs. access keys

· Federation of IAM Best Practices

ELASTIC CONTAINER SERVICE ON AMAZON (ECS)

· Containers share storage space.

· Single-docker environments vs. multi-docker environments

· Using ECR to upload and download pictures

· Methods of placement (e.g., spread, binpack, random etc.)

· Mappings of ports

· Task definitions must be defined.

· Task Roles in IAM

ELASTIC BEANSTALK ON AMAZON

· Blue/green deployment policies

· extensions and configuration files

· Deployment updates

· Worker tier vs. web tier

· Deployment, packaging, and files, as well as code and commands, are all utilized.

· Case studies

CLOUD FORMATION ON AWS

· Anatomy of a CloudFormation template (e.g., mappings, outputs, parameters, etc.)

· AWS Serverless Application Model was utilized for packaging and deployment, including instructions (SAM)

#AWS Developer Associate Exam #AWS Certified Solutions Architect Associate #aws certified developer associate

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aws101training · 4 years ago

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AWS Enterprise Training for Seasoned Professionals, Get Future Ready Now

Our AWS enterprise training exposes the students to the fundamental and advanced ideas and capabilities of Amazon Web Services. Hundreds of organizations have found our Amazon Web Services training program helpful. They are all satisfied with the assistance and support we provided the in learning the intricacies of the subject with satisfaction. Our AWS Tutorials fulfil the expectations of Enterprises. Stay tuned as we often update Amazon Web Services Tutorials. We assist organizations achieve optimum performance with our training program.

Amazon Web Services is the most significant course in the current scenario due to the increased number of requirements and dependency with attached best in class security. Our AWS group training helped businesses and professionals adapt to the live usage environment and to its difficulties. 

 1. What exactly is AWS?

 Our AWS lesson exposes the reader to the fundamental ideas and capabilities of Amazon Web Services. Our students found the training program helpful, assisting with improved performance on the job. We encourage our students to stay tuned to updates related to AWS and further certifications; for that, join our LinkedIn or Facebook cloud practitioners’ group.

 Amazon Web Services is the most significant course in the current scenario due to the increased number of job opportunities and the high compensation pay. We also provide AWS online instruction to all students worldwide through the media. These are the best AWS Tutorials created by our institute's professional teachers.

 • What exactly is AWS?

• What exactly are AWS EC2 Instances?

• What exactly is the AWS Management Console?

• What exactly is AWS Lambda?

• What exactly is AWS API Gateway?

• What exactly is AWS Dynamo DB?

• What exactly are AWS Certifications?

• Why is AWS so popular today?

• How will AWS evolve over the next five years?

1. What exactly is AWS?

 AWS is an abbreviation for Amazon Web Services. It's a cloud platform created by the e-commerce behemoth Amazon.com.

Governments, businesses, and people may utilize Amazon's cloud computing services to access a powerful cluster of cloud-based services.

 2. What exactly is AWS API Gateway?

 Amazon Web Services API Gateway is one of the many AWS services available.

Developers may use this platform to build, publish, regulate, and secure APIs.

To access various online services, including Amazon Web Services, you may create an Application Programming Interface (API).

3. What exactly is AWS Lambda?

 AWS Lambda is a cloud computing service provided by Amazon Web Services. It's an event-driven service that provides serverless processing of codes responding to events such as program messages, user actions, sensor output, and so on. The service manages resources automatically to offer smooth and real-time processing of requests. AWS Lambda joined Amazon Web Services in 2014, and since then, it has seen many improvements, making it most attractive among businesses. 

 4. What exactly is the AWS Management Console?

 The AWS management console is a graphical user interface that enables you to access Amazon Web Services through web browsers via the internet. You may use the management interface to control various Amazon services, including cloud storage and cloud computing. AWS interface is accessible from a mobile device by downloading the AWS Console mobile app.

5. What exactly are AWS EC2 Instances?

 Amazon EC2 is a cloud computing service that offers scalable computational power. In other words, AWS's EC2 service provides us with a virtual private computer in the cloud. COMPUTE capacity is the amount of energy needed to run your task in the cloud. The computing power provided by the EC2 service in the form of EC2 Instances is both scalable and dynamic.

 6. What exactly is Amazon Dynamo DB?

 Amazon Web Services offers Dynamo DB as a database service (AWS).

The dynamo DB is also known as a NoSQL database since it uses JSON queries to interact with the database. Opposed to SQL databases, which utilize SQL-related questions to interact with the database. This database is both versatile and quick and used for applications that need consistency and latency at the millisecond level at any size.

 7. What exactly is Amazon Relational Database Services (RDS)?

 The DB case is Amazon RDS's basic structural square. A database occurrence is a distinct database circumstance in the cloud. A DB event may include several client-created databases, and you can access them using the same tools and apps as you would with an isolated database example. A DB event may be created and modified using the AWS Command Line Interface, the Amazon RDS API, or the AWS Management Console.

 The DB usage comes with computation and memory limits. Its type and size govern these. It's the reason database planning is an essential aspect of server optimization. If your requirements change after some time, you may modify DB cases.

 It provides a cost-effective, scalable limit for an industry-standard social database and manages fundamental database organization tasks.

 Zones of Monitoring and Availability

 Amazon's distributed computing assets are stored in widely accessible server farm offices across the globe (for instance, North America, Europe, or Asia).

Every datum focal region is referred to as a district. You may execute your database event in several Availability Zones, which is known as a multi-AZ organization.

Amazon sets up and maintains an optional backup DB event in a different Availability Zone when you choose this option. Your primary DB example is replicated synchronously across Availability Zones to the auxiliary occurrence to provide information excess, failover support, dispose of I/O solidifies, and minimize inactivity spikes during framework reinforcements.

See High Availability (Multi-AZ) for Amazon RDS for additional information.

 Security

 A security group controls the entry to a DB event. It does this by granting access to the IP address ranges or Amazon EC2 instances that you specify. Amazon RDS makes use of DB security groups, VPC security groups, and EC2 security groups. In simple words, a DB security gathering regulates access to a DB instance that is not in a VPC; a VPC security gathering controls access to a DB instance that is within a VPC. An Amazon EC2 security gathering contains access to an EC2 instance used with a DB instance. See Security in Amazon RDS for additional information about security gatherings.

 Examining an Amazon RDS Database Instance 

There are many methods to monitor the presentation and well-being of a DB occurrence.

The free Amazon CloudWatch administration monitors the exhibition and strength of a DB occurrence; execution outlines are shown in the Amazon RDS comfort.

You may subscribe to Amazon RDS events to be notified when changes occur with a database, for example, a DB Snapshot, a DB parameter collection, or a DB security collection.

See Monitoring Amazon RDS for additional information.

Interfaces for Amazon RDS

There are many methods for connecting to Amazon RDS.

Amazon Web Services Management Console

 The AWS Management Console is a simple web interface. You may manage your DB events directly from to reassure, with no scripting needed. Sign in to the AWS Management Console and open the Amazon RDS to get the Amazon RDS assistance.

 Amazon RDS Programming

If you are a designer, you can get access to Amazon RDS automatically.

See Amazon RDS Application Programming Interface Reference for additional information.

It is recommended to use AWS Software Development Kits for application development.

The AWS SDKs handle low-level nuances like confirmation, retry logic, and error handling, allowing you to focus on your application logic.

AWS SDKs are available in a variety of languages.

See Tools for Amazon Web Services for additional information.

AWS also provides libraries, test code, educational exercises, and other resources to help you get started quickly.

See Sample Code and Libraries for additional information.

How are Amazon RDS fees calculated?

When using Amazon RDS, you have the option of using on-request DB cases or held DB occurrences.

More information may be found in DB Instance Billing for Amazon RDS.

8. Amazon Web Services Elastic Load Balancer - ELB

Elastic Load Balancer spreads incoming network traffic from applications across many servers, which may be in various Availability Zones.

It aids and improves the fault tolerance of your applications.

It acts as a single point of contact for your customers, ensuring that the application is always accessible.

You may either add or remove instances from the load balancer, which has no effect on your load balancer, and similarly, removing the load balancer has no effect on your Ec2s.

It aids in scaling your load balancer's traffic to your application as it changes over time and also automatically handles the bulk of burden when scaled.

Elastic load balancers have their own DNS domains and are never assigned IP addresses.

We may examine the load balancing activities using DNS.

Load balancer health checks are required to be set up since they bring in the status of the load balancers.

It is essentially the sanity tests that are performed on the servers to determine if they are healthy or sick.

The main health check answers are as follows:

 Response timer:

When checking for output, it should return the status in the time allowed, and if there is no response, it should at least throw the error message in the time permitted.

In the allotted period, either an error or a response should be shown.

Interval: The amount of time it takes to distribute load across the instances.

Healthy Threshold: Any output anticipated to be shown within the specified time, as well as servers that are healthy enough to bring in the load management.

Unhealthy Threshold: If the instances are offline or unresponsive, or if the threshold has been exceeded, the load balancer will fail to handle the load.

Elastic Load Balancing Varieties

Elastic Load Balancing is compatible with three kinds of load balancers:

 1.Traditional Load Balancer.

2.Load Balancer for Applications

3.Load Balancer for the network

 Load Balancer in the Traditional Style

Classic Load Balancer, like any other load balancer, does basic load balancing across many EC2 instances. It operates in accordance with the OSI model's Transport layer (fourth layer). This was mostly utilized before the implementation of the application load balancer. 

Load Balancers for Applications

Application Load Balancers operate according to the OSI model's application layer (the seventh layer). Loads are dispersed and controlled in accordance with the application's use.

 Load Balancer for Networks

The Network Load Balancer is excellent for balancing TCP traffic loads.

Instances, containers, microservices, and so on may be targets.

It can handle millions of requests per second while maintaining low latency, guaranteeing excellent network performance.

Load balancers have many key characteristics, including the ability to guarantee high availability across several or a single availability zone by spreading incoming traffic.

In reaction to incoming application load, the request processing capacity is increased.

One of the essential aspects of ELB is the health check, which displays or brings in the status of servers. It guarantees the servers' sanity and status checks. Bringing in or detecting the health of Amazon EC2 instances is ideal. 

If any of the EC2 instances are discovered to be unhealthy, the load balancer redirects traffic to other servers rather than the defective or unhealthy servers or EC2 instances.

Security features are implemented in load balancers by adding security groups, NACLs (Network Access control lists), or even VPCs (virtual private clouds).

Load Balancer accepts IPv4 and IPv6 addresses.

Cloud Watch is a monitoring and management solution that tracks all load balancer data.

Logs obtained by cloud monitor will aid in the diagnosis of any application problems or web traffic.

SSL (secure socket layer) certificates handle load balancer encryption, including public key authentication and offloading SSL (secure socket layer) decryption from application instances.

Load Balancing and Autoscaling services may be coupled to guarantee traffic is properly controlled and balanced while applications and services are in place. 

Certifications from AWS

 AWS is an abbreviation for Amazon Web Services, which is a collection of cloud computing services offered by Amazon.

An AWS certification validates your ability to manage the services offered by AWS.

Cloud computing has recently grown in popularity among businesses due to its advantages, such as increased productivity and lower costs. 

Why has AWS remained so popular up to this point?

 AWS, or Amazon Web Services, is a subsidiary business of Amazon.com that provides on-demand cloud computing platforms.

These services are available in sixteen different locations across the globe, and they include EC2 (Amazon Elastic Compute Cloud) and S3 (Simple Storage Services). They provide approximately 70 services, including storage, network, database, analytics, and so on.

What Will AWS Look Like in the Next Few Years?

There is hardly any business out there that does not want to build its own public cloud and is not carefully watching AWS or Amazon Web Services. AWS, with its security, brings customers increased database storage and computational capacity. Furthermore, it offers content distribution and other helpful services to businesses to help them develop. Many businesses are currently using, and millions are moving to Amazon Web Services to build complex applications with increased flexibility and dependability.

#aws awscourse awsonlinetraining

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