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Concept of layering.OSI and TCP/IP Protocol Stacks; Basics of packet, circuit and virtual circuit-switching; Data link layer: framing, error detection, Medium Access Control, Ethernet bridging; Routing protocols: shortest path, flooding, distance vector and link state routing; Fragmentation and IP addressing, IPv4, CIDR notation, Basics of IP support protocols (ARP, DHCP, ICMP), Network Address Translation (NAT); Transport layer: flow control and congestion control, UDP, TCP, sockets; Application layer protocols: DNS, SMTP, HTTP, FTP, Email.

.$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{2020}&\textbf{2019}&\textbf{2018}&\textbf{2017-1}&\textbf{2017-2}&\textbf{2016-1}&\textbf{2016-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 2 &1&1&2&1&3&2&3&2&3&1&2&3
\\\hline\textbf{2 Marks Count} & 4 &4&3&2&4&2&3&1&4&3&1&3&4
\\\hline\textbf{Total Marks} & 10 &9&7&6&9&7&8&5&10&9&\bf{5}&\bf{8}&\bf{10}\\\hline
\end{array}}}$$

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Most answered questions in Computer Networks

29 votes
5 answers
103
GATE CSE 2022 | Question: 45
Consider routing table of an organization's router shown below: ... of the subnets in the routing table? $12.20.164.0/20$ $12.20.164.0/22$ $12.20.164.0/21$ $12.20.168.0/22$
Consider routing table of an organization’s router shown below:$$\begin{array} {|l|l|l|} \hline \text{Subnet Number} & \text{Subnet Mask} & \text{Next Hop} \\\hline 12....
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2 votes
5 answers
105
UGC NET CSE | January 2017 | Part 2 | Question: 28
A packet whose destination is outside the local $TCP/IP$ network segment is sent to ________. File server $DNS$ server $DHCP$ server Default gateway
A packet whose destination is outside the local $TCP/IP$ network segment is sent to ________.File server$DNS$ server$DHCP$ serverDefault gateway
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4 votes
5 answers
106
ISRO2020-58
Remote Procedure Calls are used for communication between two processes remotely different from each other on the same system communication between two processes on the same system communication between two processes on the separate systems none of the above
Remote Procedure Calls are used forcommunication between two processes remotely different from each other on the same systemcommunication between two processes on the sam...
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23 votes
5 answers
108
GATE CSE 2018 | Question: 13
Match the following: ... $\text{P-IV, Q-I, R-II, S-III}$ $\text{P-IV, Q-I, R-III, S-II}$
Match the following:$$\begin{array}{|l|l|}\hline \textbf{Field} & \textbf{Length in bits} \\\hline \text{P. UDP Header's Port Number} & \text{I. 48} \\ \text{Q. Ethern...
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0 votes
5 answers
109
#TCP/IP
What is the maximum size of data that the Network layer can forward to the Data link layer including header data? Should it be 65535B or 1500B?
What is the maximum size of data that the Network layer can forward to the Data link layer including header data? Should it be 65535B or 1500B?
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6 votes
5 answers
110
ISRO2017-29
The default subnet mask for a class B network can be $255.255.255.0$ $255.0.0.0$ $255.255.192.0$ $255.255.0.0$
The default subnet mask for a class B network can be$255.255.255.0$$255.0.0.0$$255.255.192.0$$255.255.0.0$
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8 votes
5 answers
112
GateBook Mock-Test-2
Suppose datagrams are limited to 1,500 bytes (including header) between source Host A and destination Host B. Assuming a 20-byte IP header and a 20-byte TCP header, how many datagrams would be required to send an MP3 consisting of 4 million bytes?
Suppose datagrams are limited to 1,500 bytes (including header) between source Host A and destination Host B. Assuming a 20-byte IP header and a 20-byte TCP header, how m...
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0 votes
5 answers
113
UGC NET CSE | January 2017 | Part 3 | Question: 28
In a packet switching network, if the message size is 48 bytes and each packet contains a header of 3 bytes. If 24 packets are required to transmit the message, the packet size is 2 bytes 1 byte 4 bytes 5 bytes
In a packet switching network, if the message size is 48 bytes and each packet contains a header of 3 bytes. If 24 packets are required to transmit the message, the packe...
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3 votes
5 answers
115
UGC NET CSE | December 2015 | Part 3 | Question: 14
In electronic mail, which of the following protocols allows the transfer of multimedia messages? IMAP SMTP POP 3 MIME
In electronic mail, which of the following protocols allows the transfer of multimedia messages?IMAPSMTPPOP 3MIME
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10 votes
5 answers
118
ISRO2007-75
When a host on network A sends a message to a host on network B, which address does the router look at? Port IP Physical Subnet mask
When a host on network A sends a message to a host on network B, which address does the router look at?PortIPPhysicalSubnet mask
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8 votes
5 answers
119
ISRO2007-73
Range of IP Address from $224.0.0.0$ to $239.255.255.255$ are Reserved for loopback Reserved for broadcast Used for multicast packets Reserved for future addressing
Range of IP Address from $224.0.0.0$ to $239.255.255.255$ areReserved for loopbackReserved for broadcastUsed for multicast packetsReserved for future addressing
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0 votes
5 answers
120
UGC NET CSE | June 2014 | Part 2 | Question: 01
Infrared signals can be used for short range communication in a closed area using _______ propagation. Ground Sky Line of sight Space
Infrared signals can be used for short range communication in a closed area using _______ propagation.GroundSky Line of sight Space
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