GATE CSE 2019 | Network Layer Question 15 | Computer Networks

GATE CSE 2019

MCQ (Single Correct Answer)

-0.67

Suppose that in an IP-over-Ethernet network, a machine X wishes to find the MAC address of another machine Y in its subnet. Which one of the following techniques can be used for this?

X sends an ARP request packet to the local gateway's IP address which then finds the MAC address of Y and sends to X

X sends an ARP request packet to the local gateway's MAC address which then finds the MAC address of Y and sends to X

X sends an ARP request packet with broadcast MAC address in its local subnet

X sends an ARP request packet with broadcast IP address in its local subnet

GATE CSE 2016 Set 1

Numerical

-0

An IP datagram of size 1000 bytes arrives at a router. The router has to forward this packet on a link whose MTU (maximum transmission unit) is 100 bytes. Assume that the size of the IP header is 20 bytes.

The number of fragments that the IP datagram will be divided into for transmission is ________.

Your input ____

GATE CSE 2015 Set 3

Numerical

-0

In the network 200.20.11.144/27, the fourth octet (in decimal) of the last IP address of the network which can be assigned to a host is ________.

Your input ____

GATE CSE 2015 Set 2

MCQ (Single Correct Answer)

-0.6

Host A sends a UDP datagram containing 8880 bytes of user data to host B over an Ethernet LAN. Ethernet frames may carry data up to 1500 bytes (i.e. MTU = 1500 bytes). Size of UDP header is 8 bytes and size of IP heard is 20 bytes.There is no option field in IP header How many total number of IP fragments will be transmitted and what will be the contents of offset field in the last fragment?

6 and 925

6 and 7400

7 and 1110

7 and 8880

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