1
GATE CSE 2024 Set 1
Numerical
+2
-0

Consider sending an IP datagram of size 1420 bytes (including 20 bytes of IP header) from a sender to a receiver over a path of two links with a router between them. The first link (sender to router) has an MTU (Maximum Transmission Unit) size of 542 bytes, while the second link (router to receiver) has an MTU size of 360 bytes.

The number of fragments that would be delivered at the receiver is ______________

Your input ____
2
GATE CSE 2021 Set 2
MCQ (More than One Correct Answer)
+2
-0

Consider a computer network using the distance vector routing algorithm in its network layer. The partial topology of the network is as shown below.

GATE CSE 2021 Set 2 Computer Networks - Network Layer Question 12 English

The objective is to find the shortest-cost path from the router R to routers P and Q. Assume that R does not initially know the shortest routes to P and Q. Assume that R has three neighbouring routers denoted as X, Y, and Z. During one iteration, R measures its distance to its neighbours X, Y, and Z as 3, 2, and 5, respectively. Router R gets routing vectors from its neighbours that indicate that the distance to router P from routers X, Y, and Z are 7, 6, and 5, respectively. The routing vector also indicates that the distance to router Q from routers X, Y, and Z are 4, 6, and 8, respectively. Which of the following statement(s) is/are correct with respect to the new routing table of R, after updation during this iteration ? 

A
The next hop router for a packet from R to P is Y.
B
The distance from R to Q will be stored as 7
C
The next hop router for a packet from R to Q is Z.
D
The distance from R to P will be stored as 10.
3
GATE CSE 2020
MCQ (Single Correct Answer)
+2
-0.67
An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached an Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?

I. 202.61.84.0/21
II. 202.61.104.0/21
III. 202.61.64.0/21
IV. 202.61.144.0/21
A
I and II only
B
II and III only
C
III and IV only
D
I and IV only
4
GATE CSE 2019
MCQ (Single Correct Answer)
+2
-0.67

Consider three machines M, N, and P with IP addresses 100.10.5.2, 100.10.5.5, and 100.10.5.6 respectively. The subnet mask is set to 255.255 .255 .252 for all the three machines. Which one of the following is true?

A
$\mathrm{M}, \mathrm{N}$, and P all belong to the same subnet
B
Only M and N belong to the same subnet
C
Only N and P belong to the same subnet
D
M, N, and P belong to three different subnets
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