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Welcome to the Networking MCQs Page

Dive deep into the fascinating world of Networking with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Networking, a crucial aspect of GATE CSE Exam. In this section, you will encounter a diverse range of MCQs that cover various aspects of Networking, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within GATE CSE Exam.

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Check out the MCQs below to embark on an enriching journey through Networking. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of GATE CSE Exam.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Networking. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Networking MCQs | Page 15 of 15

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Q141.
Choose the false one.

a.

Diffie – Hellman protocol is a symmetric key protocol

b.

In RSA, both keys are private

c.

DES is a block clipher algorithm

d.

Vigenere clipher is poly-alphabetic in nature

Discuss
Answer: (b).In RSA, both keys are private
Q142.
There are 15 users communicating to each other. How many pairs of keys are required to authenticate the communications if the symmetric key is used?

a.

15

b.

30

c.

105

d.

(15)²

Discuss
Answer: (c).105
Q143.
Consider a bandwidth of line 200mbps and sequence number field is 48-bits. Find out the wrap-around time of sequence numbers.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q144.
Let the value of the RTT(Round-Trip-Time)is to be measure (d). The value of the previous RTT be 350μs. Let the value of α be 90% the new RTT, hence the retransmission time is ______ .(Assume it takes a segment at this moment to be acknowledged in 90μs)

a.

396, 796

b.

348, 696

c.

321, 644

d.

324, 648

Discuss
Answer: (d).324, 648
Q145.
Suppose a web server application generates messages consisting of 120 bytes if every second to the Central host, and each message gets encapsulated in a UDP segment and then an IPV4 Datagram. There are no options added in the TCP (or) Ip headers. What percentage of each Datagram will consist of data generated by the application?

a.

81%

b.

75%

c.

25%

d.

20%

Discuss
Answer: (a).81%
Q146.
Suppose that a TCP entity receives 2 MB file from the application layer and the IP layer is willing to Carry blocks of maximum size 1600 B; calculate the amount of overhead incurred from Segmenting the file into packet-sized units. Assume both TCP and Ip header of 20 B.

a.

10%

b.

2.6%

c.

2%

d.

17%

Discuss
Answer: (b).2.6%
Page 15 of 15

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