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Which of the following indicates the minimum number of entities that must be involved in a relationship? A. Minimum cardinality B. Maximum cardinality C. ERD D. Greater Entity Count (GEC) Answer: Option A
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Manufacturing may produce these types of products: A. Discrete or continuous B. Raw material or parts C. Machinery or manufactured D. Processes or operations Answer: Option A
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What is the access scope of a protected method? A protected method can be accessed by the classes within the same package or by the subclasses of the class in any package.
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Statement: Due to substantial reduction in fares by different airline services, large number of passengers so far travelling by upper classes in trains have switched over to airline services. Courses of Action: The railways should immediately reduce the fare structure of the upper classes substantially to retain its passengers. The railways should reduce the capacity of upper classes in all the trains to avoid loss. A. Only I follows B. Only II follows C. Either I or II follows D. Neither I nor II follows E. Both I and II follow Answer: Option A
Explanation:
Airlines, being convenient and faster means of transport, people would surely prefer it to the railways if there is a marginal difference between the fares. Hence, a considerable gap between the two fares is a must for the railways. So, course I follows. Following course II would reduce the volume of passengers. Hence, II does not follow.
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Statements: Some papers are pens. Some pencils are pens. Conclusions: Some pens are pencils. Some pens are papers. A. Only conclusion I follows B. Only conclusion II follows C. Either I or II follows D. Neither I nor II follows E. Both I and II follow Answer: Option E
Explanation:
Since both premises are particular, no definite conclusion follows. However, I is the converse of second premise, while II is the converse of the first premise. So, both of them hold.
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