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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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Highest voted questions in Computer Networks

31 votes
6 answers
125
GATE IT 2005 | Question: 28
Which of the following statements is FALSE regarding a bridge? Bridge is a layer $2$ device Bridge reduces collision domain Bridge is used to connect two or more LAN segments Bridge reduces broadcast domain
Which of the following statements is FALSE regarding a bridge?Bridge is a layer $2$ deviceBridge reduces collision domainBridge is used to connect two or more LAN segment...
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31 votes
7 answers
127
GATE CSE 1994 | Question: 9
Following $7$ ... that at most $1$ bit could be corrupted). If the message contains an error find the bit which is erroneous and gives correct message.
Following $7$ bit single error correcting hamming coded message is received.$$\overset{7\qquad 6\qquad 5 \qquad 4\qquad 3 \qquad 2 \qquad 1}{\boxed{1 \qquad 0\qquad 0 \qq...
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30 votes
4 answers
132
GATE IT 2008 | Question: 20
Provide the best matching between the entries in the two columns given in the table below: ... $\text{I-a, II-c, III-d, IV-b}$ $\text{I-b, II-c, III-d, IV-a}$
Provide the best matching between the entries in the two columns given in the table below:$$\begin{array}{|ll|ll|} \hline \text {I.} & \text {Proxy Server} & \text {a.} &...
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30 votes
5 answers
134
GATE CSE 2005 | Question: 23
Packets of the same session may be routed through different paths in: TCP, but not UDP TCP and UDP UDP, but not TCP Neither TCP nor UDP
Packets of the same session may be routed through different paths in:TCP, but not UDPTCP and UDPUDP, but not TCPNeither TCP nor UDP
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30 votes
5 answers
135
GATE CSE 2007 | Question: 20
Which one of the following uses UDP as the transport protocol? HTTP Telnet DNS SMTP
Which one of the following uses UDP as the transport protocol?HTTPTelnetDNSSMTP
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29 votes
5 answers
136
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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