1
GATE CSE 2022
MCQ (More than One Correct Answer)
+1
-0.33

Consider routing table of an organization's router shown below:

Subnet number Subnet mask Next hop
12.20.164.0 255.255.252.0 R1
12.20.170.0 255.255.254.0 R2
12.20.168.0 255.255.254.0 Interface 0
12.20.166.0 255.255.254.0 Interface 1
default R3

Which of the following prefixes in CIDR notation can be collectively used to correctly aggregate all of the subnets in the routing table?

A
12.20.164.0/20
B
12.20.164.0/22
C
12.20.164.0/21
D
12.20.168.0/22
2
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
In the following pairs of OSI protocol layer/sub-layer and its functionality, the INCORRECT pair is
A
Network layer and Routing.
B
Transport layer and End-to-end process communication.
C
Data Link Layer and Bit synchronization.
D
Medium Access Control sub-layer and Channel sharing.
3
GATE CSE 2013
MCQ (Single Correct Answer)
+1
-0.3
Assume that source S and destination D are connected through two intermediate routers labeled R. Determine how many times each packet has to visit the network layer and the data link layer during a transmission from S to D. GATE CSE 2013 Computer Networks - Concepts of Layering Question 3 English
A
Network layer – 4 times and Data link layer – 4 times
B
Network layer – 4 times and Data link layer – 3 times
C
Network layer – 4 times and Data link layer – 6 times
D
Network layer – 2 times and Data link layer – 6 times
4
GATE CSE 2012
MCQ (Single Correct Answer)
+1
-0.3
The protocol data unit (PDU) for the application layer in the Internet stack is
A
Segment
B
Datagram
C
Message
D
Frame
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