Computer Networks (GATE Computer Science): Questions 21 - 27 of 169

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Question number: 21

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

Which of the following is a process by which code is scrambled to hide its meaning?

Choices

Choice (4) Response

a.

private key

b.

Cartography

c.

Encryption

d.

All of the above

Question number: 22

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

If two sets A and B have no common elements i. e. (An intersection B) has no element then such sets are known as ________.

Choices

Choice (4) Response

a.

Disjoint

b.

Complement

c.

Union

d.

All of the above

Question number: 23

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

Service advertisement is a topic of which layer of the OSI reference model?

Choices

Choice (4) Response

a.

Presentation

b.

Transport

c.

Application

d.

Question does not provide sufficient data or is vague

Question number: 24

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

The geostationary satellite used for communication system-.

Choices

Choice (4) Response

a.

rotates with earth

b.

remains stationery relative to the earth

c.

is positioned over equator

d.

All a. , b. and c. are correct

Question number: 25

» Computer Networks » ISO-OSI Stack

MCQ▾

Question

What layer of the OSI model performs physical addressing?

Choices

Choice (4) Response

a.

physical layer

b.

Transport layer

c.

Data link layer

d.

Question does not provide sufficient data or is vague

Question number: 26

» Computer Networks » Firewalls

MCQ▾

Question

An encryption algorithm transforms ________

Choices

Choice (4) Response

a.

text

b.

ciphertext to plaintext

c.

plaintext to ciphertext

d.

All of the above

Question number: 27

» Computer Networks » IP(v4)

MCQ▾

Question

Which address is the B class address?

Choices

Choice (4) Response

a.

129.20. 01.0

b.

0.0. 0.1

c.

224.50. 0.1

d.

All of the above

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