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Computer Networks
Concepts of Layering
Marks 1Marks 2
Data Link Layer and Switching
Marks 1Marks 2
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 2006
MCQ (Single Correct Answer)
+1
-0.3
For which one of the following reasons does Internet Protocol (IP) use the time-to-live (TTL) field in the IP datagram header?
A
Ensure packets reach destination within that time
B
Discard packets that reach later than that time
C
Prevent packets from looping indefinitely
D
Limit the time for which a packet gets queued in intermediate routers.
2
GATE CSE 2005
MCQ (Single Correct Answer)
+1
-0.3
An organization has a class B network and wishes to form subnets for 64 departments. The subnet mask would be
A
255.255.0.0
B
255.255.64.0
C
255.255.128.0
D
255.255.252.0
3
GATE CSE 2005
MCQ (Single Correct Answer)
+1
-0.3
The address resolution protocol (ARP) is used for
A
Finding the IP address from the DNS
B
Finding the IP address of the default gateway
C
Finding the IP address that corresponds to a MAC address
D
Finding the MAC address that corresponds to an IP address
4
GATE CSE 2004
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is NOT true with respect to a transparent bridge and a router?
A
Both bridge and router selectively forward data packets
B
A bridge uses IP addresses while a router uses MAC addresses
C
A bridge builds up its routing table by inspecting incoming packets
D
A router can connect between a LAN and a WAN
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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