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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.

.$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2024-1} & \textbf{2024-2} & \textbf{2023}&  \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 3&3&2& 2 &1&1&1&2&3
\\\hline\textbf{2 Marks Count} & 3&3&3& 4 &4&3&3&3.33&4
\\\hline\textbf{Total Marks} & 9&9&8& 10 &9&7&\bf{7}&\bf{8.67}&\bf{10}\\\hline
\end{array}}}$$

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Recent questions in Computer Networks

1 votes
1 answer
1781
Ip address
Which class is better in ip adress A , B Or C.Or which has more networks.
Which class is better in ip adress A , B Or C.Or which has more networks.
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23 votes
5 answers
1786
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:$$\begin{array}{|l|l|}\hline \textbf{Field} & \textbf{Length in bits} \\\hline \text{P. UDP Header's Port Number} & \text{I. 48} \\ \text{Q. Ethern...
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3 votes
3 answers
1788
Computer Networks
Do all the TCP segments travel through same path once the connection is established ?
Do all the TCP segments travel through same path once the connection is established ?
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0 votes
1 answer
1789
Computer Networks
Why is MTU (Maximum Transmissible Unit) chosen as 1500 bytes for Internet ? What factors determine MTU size ?
Why is MTU (Maximum Transmissible Unit) chosen as 1500 bytes for Internet ? What factors determine MTU size ?
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0 votes
2 answers
1790
Fragmentation
Even If one fragment of packet is lost....will sender send the whole packet again?
Even If one fragment of packet is lost....will sender send the whole packet again?
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0 votes
1 answer
1792
Routing
How will any router know that it's neighbouring router is disconnected from network?
How will any router know that it's neighbouring router is disconnected from network?
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2 votes
1 answer
1793
ICMP packet
Why icmp packet is generated only for the first fragment of ip datagram but not for all fragments of ipdatagram
Why icmp packet is generated only for the first fragment of ip datagram but not for all fragments of ipdatagram
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0 votes
1 answer
1794
kerla psc ap
Four bits are used for packed sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size? $4$ $8$ $15$ $16$ Answer given is $16$
Four bits are used for packed sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size?$4$$8$$15$$16$Answer given is $1...
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2 votes
0 answers
1796
IITK written test for M-Tech
If you are hosting an email service on your server with some domain name with many local nodes, what service is absolutely essential? 1.DNS 2.SMTP 3.DHCP 4.IRC Multiple options can be right?
If you are hosting an email service on your server with some domain name with many local nodes, what service is absolutely essential?1.DNS2.SMTP3.DHCP4.IRCMultiple option...
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0 votes
0 answers
1797
Ethernet frames
Why start frame delimiter pattern of frame should not match with the data pattern in frame
Why start frame delimiter pattern of frame should not match with the data pattern in frame
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0 votes
3 answers
1799
Gate 2018
Which of the following is true In slow start phase cwnd 1)Increase by 2mss after every successfull ack 2) approximately double after every rtt 3) increase by 1mss after every successfull ack 4) approximately double after every rtt I am not sure but question was something like that
Which of the following is trueIn slow start phase cwnd1)Increase by 2mss after every successfull ack2) approximately double after every rtt3) increase by 1mss after every...
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0 votes
1 answer
1800
Gate 2018
Offset of 3 rd fragment
Offset of 3 rd fragment
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