GATE (Graduate Aptitude Test in Engineering) Computer Science: Questions 1918 - 1923 of 2080

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Question 1918

Question

MCQ▾

If there are ten routers and eleven networks in intranet using link state routing, how many routing tables are there?

Choices

Choice (4)Response

a.

10

b.

5

c.

11

d.

6

Question 1919

Question

MCQ▾

In Cryptography, the following uses transposition ciphers and the keyword is LAYER. Encrypt the following message. (Spaces are omitted during encryption) WELCOME TO NETWORK SECURITY!

Choices

Choice (4)Response

a.

EETSICOOCYWMEKRONRU! LTWET

b.

WMEKREETSILTWETCOOCYONRU!

c.

LTWETONRU! WMEKRCOOCYEETSI

d.

ONRU! COOCYLTWETEETSIWMEKR

Question 1920

Question

MCQ▾

The maximum number of super keys for the relation schema R (E, F, G, H) with E as the key is

Choices

Choice (4)Response

a.

5

b.

6

c.

8

d.

7

Question 1921

Question

MCQ▾

The result of adding hexadecimal number to is:

Choices

Choice (4)Response

a.

AB

b.

FF

c.

0C

d.

C5

Question 1922

Question

MCQ▾

Consider the relation R (ABCDE) together with the functional dependencies:

The highest normal form of the above relation is

Choices

Choice (4)Response

a.

BCNF

b.

3NF

c.

1 NF

d.

2NF

Question 1923

Question

MCQ▾

A tree has four vertices of degree 4, three vertices of degree 3 and two vertices of degree 2. If other vertices have degree 1, how many vertices are there in tree?

Choices

Choice (4)Response

a.

19

b.

23

c.

21

d.

13

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