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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 viewed questions in Computer Networks

2 votes
1 answer
4111
computer networks
Asymmetric key cryptrography and digital signature both use the private and public keys of the sender. explain is it true or false
Asymmetric key cryptrography and digital signature both use the private and public keys of the sender. explain is it true or false
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2 votes
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4113
self doubt
why a single secret key cannot be used by the sender to sign multiple documents for multiple receiver. please explain
why a single secret key cannot be used by the sender to sign multiple documents for multiple receiver.please explain
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0 votes
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4114
please solve this Q
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1 votes
1 answer
4115
computer-networks
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2 votes
0 answers
4116
IP addressing
The data link layer provides the host or Mac address. Network layer comes before data link layer at the sender side of OSI reference model. Then how can network layer can do Ip addressing which includes network as well as the host address?
The data link layer provides the host or Mac address. Network layer comes before data link layer at the sender side of OSI reference model. Then how can network layer can...
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0 votes
1 answer
4117
Self Doubt
What is the meaning of processing time at source and destination? Under processing time what task happens?
What is the meaning of processing time at source and destination? Under processing time what task happens?
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0 votes
1 answer
4118
ISRO 2008- ECE 100 Base T
100 Base T refers to (a) Fibre connectivity (b) BNC connectors (c) SONET (d) Twisted pair
100 Base T refers to(a) Fibre connectivity(b) BNC connectors(c) SONET(d) Twisted pair
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0 votes
0 answers
4119
Data LINK layer
Can someone clear doubt regarding 2D parity as written in NPTEL slides that 2D parity can detect a burst error of n bits and >n+1 bits is detected but probabilty is less compared to n bits? According to me, 1bit errors can be corrected and detected 2 bit errors can't be corrected and detected.
Can someone clear doubt regarding 2D parity as written in NPTEL slides that 2D parity can detect a burst error of n bits and >n+1 bits is detected but probabilty is less ...
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1 votes
1 answer
4120
Test by Bikram | Computer Networks | Test 1 | Question: 24
... a-1,b-4, c-3,d-2 b-1,a-4, c-3,d-2 a-1,c-4, b-3,d-2 d-1,b-4, a-3,c-2
$$ \begin{array}{|c|c|c|} \hline a & \text{Repeater} & 1 & \text{physical layer} \\ \hline b & \text{Router} & 2 & \text{data link} \\ \hline c & \text{Gateway} & 3 & \te...
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1 votes
0 answers
4121
Ip addressing
https://gateoverflow.in/?qa=blob&qa_blobid=18152128369856966495
https://gateoverflow.in/?qa=blob&qa_blobid=18152128369856966495
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1 votes
1 answer
4122
self doubt
does GO BACK N ARQ supports individual ACK
does GO BACK N ARQ supports individual ACK
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0 votes
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4123
Applied Course mocktest
A system uses SR Protocol with a window size of 4. If each packet carries 5000 bits of data, then the time required to transfer 5 million bits of data , if the distance between sender and rx is 2500 km , propagation speed is 2 * 10^8 m/s and data rate is 1Mbps. We assume no ack is lost or damaged.
A system uses SR Protocol with a window size of 4. If each packet carries 5000 bits of data, then the time required to transfer 5 million bits of data , if the distance ...
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4124
ME test series Q
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4125
dout on networking
what does single slotted aloha means?
what does single slotted aloha means?
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1 votes
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4126
Csma cd
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0 votes
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4128
Madeeasy-TestSeries
A leaky Bucket with capacity 200MB is at host network interface. The data rate on the network is 2MBps. If the Host has 450 MB to send on the network and it sends data in a burst, then the maximum data speed from the host in order that no data is lost is ______MBps
A leaky Bucket with capacity 200MB is at host network interface. The data rate on the network is 2MBps. If the Host has 450 MB to send on the network and it sends data in...
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0 votes
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4130
Wrap around time
Given bandwidth is 128 Gbps. (use giga has 2 power 30), the total time for a complete wrap-around of sequence numbers in TCP
Given bandwidth is 128 Gbps. (use giga has 2 power 30), the total time for a complete wrap-around of sequence numbers in TCP
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