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Computer Networks
Concepts of Layering
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Data Link Layer and Switching
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Network Layer
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Application Layer Protocol
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Routing Algorithm
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TCP UDP Sockets and Congestion Control
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Lan Technologies and Wi-Fi
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Network Security
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1
GATE CSE 2025 Set 2
MCQ (Single Correct Answer)
+1
-0.33

Consider a network that uses Ethernet and IPv4. Assume that IPv4 headers do not use any options field. Each Ethernet frame can carry a maximum of 1500 bytes in its data field. A UDP segment is transmitted. The payload (data) in the UDP segment is 7488 bytes. Which ONE of the following choices has the CORRECT total number of fragments transmitted and the size of the last fragment including IPv4 header?

A
5 fragments, 1488 bytes
B
6 fragments, 88 bytes
C
6 fragments, 108 bytes
D
6 fragments, 116 bytes
2
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+1
-0

Node X has a TCP connection open to node Y. The packets from X to Y go through an intermediate IP router R. Ethernet switch S is the first switch on the network path between X and R. Consider a packet sent from X to Y over this connection.

Which of the following statements is/are TRUE about the destination IP and MAC addresses on this packet at the time it leaves X?

A

The destination IP address is the IP address of R

B

The destination IP address is the IP address of Y

C

The destination MAC address is the MAC address of S

D

The destination MAC address is the MAC address of Y

3
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+1
-0

Which of the following statements about IPv4 fragmentation is/are TRUE?

A

The fragmentation of an IP datagram is performed only at the source of the datagram

B

The fragmentation of an IP datagram is performed at any IP router which finds that the size of the datagram to be transmitted exceeds the MTU

C

The reassembly of fragments is performed only at the destination of the datagram

D

The reassembly of fragments is performed at all intermediate routers along the path from the source to the destination

4
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+1
-0

Which of the following fields of an IP header is/are always modified by any router before it forwards the IP packet?

A

Source IP Address

B

Protocol

C

Time to Live (TTL)

D

Header Checksum

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Questions Asked from Marks 1
GATE CSE 2025 Set 2 (2) GATE CSE 2024 Set 2 (3) GATE CSE 2024 Set 1 (1) GATE CSE 2022 (1) GATE CSE 2021 Set 1 (1) GATE CSE 2020 (1) GATE CSE 2015 Set 1 (1) GATE CSE 2014 Set 3 (1) GATE CSE 2012 (1) GATE CSE 2010 (1) GATE CSE 2006 (1) GATE CSE 2005 (2) GATE CSE 2004 (1) GATE CSE 2003 (1)
GATE CSE Subjects
Theory of Computation
Operating Systems
Algorithms
Digital Logic
Database Management System
Data Structures
Computer Networks
Software Engineering
Compiler Design
Web Technologies
General Aptitude
Discrete Mathematics
Programming Languages
Computer Organization