GATE (Graduate Aptitude Test in Engineering) Computer Science: Questions 1766 - 1768 of 2080

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Question 1766

Appeared in Year: 2019 (UGC-NET)

Question

MCQ▾

Following table has two attributes Employee_id and Manager_id where Employee_id is a primary key and Manager_id is a foreign key referencing Employee_id with on delete cascade:

The Two Attributes Employee Id and Manager Id
Employee_idManager_id
2040
2540
3035
3520
4045
4525

On deleting the table the set of other tuples that must be deleted to maintain the referential integrity of table is, (June)

Choices

Choice (4)Response

a.

and only

b.

Only

c.

and only

d.

Only

Question 1767

Appeared in Year: 2019 (UGC-NET)

Question

MCQ▾

You need 500 subnets, each with about 100 usable host addresses per subnet. What network mask will you assign using a class B network address? (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1768

Appeared in Year: 2019 (UGC-NET)

Question

MCQ▾

Software reuse is (June)

Choices

Choice (4)Response

a.

The process of using existing software artifacts and knowledge to build new software

b.

Concerned with reimplementing legacy system to make them more maintainable

c.

The process of analyzing software with the objective of recovering its design and specification

d.

The process of analyzing software to create a representation of a higher level of abstraction and breaking software down into its parts to see how it works

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