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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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Recent questions in Computer Networks

1 votes
1 answer
511
NIELIT 2016 MAR Scientist C - Section C: 20
Start and stop bits are used in serial communication for error detection error correction synchronization slowing down the communication
Start and stop bits are used in serial communication for error detectionerror correctionsynchronizationslowing down the communication
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0 votes
2 answers
512
NIELIT 2016 MAR Scientist C - Section C: 21
Repeaters function in Physical layer Data link layer Network layer Both (A) and (B)
Repeaters function inPhysical layerData link layerNetwork layerBoth (A) and (B)
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1 votes
1 answer
513
NIELIT 2016 MAR Scientist C - Section C: 22
What are the primary characteristics that distinguish a cell from a packet? cells are generally smaller that packets cells do not incorporate physical address all cells have the same fixed length packet cannot be switched
What are the primary characteristics that distinguish a cell from a packet?cells are generally smaller that packetscells do not incorporate physical addressall cells have...
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1 votes
1 answer
514
NIELIT 2016 MAR Scientist C - Section C: 33
In networking terminology UTP means Unshielded Twisted pair Ubiquitious Teflon port Uniformly Terminating port Unshielded T- connector port
In networking terminology UTP meansUnshielded Twisted pairUbiquitious Teflon portUniformly Terminating portUnshielded T- connector port
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1 votes
2 answers
515
NIELIT 2016 MAR Scientist C - Section C: 38
How many bits are required to encode all twenty six letters, ten symbols, and ten numerals? $5$ $6$ $7$ $46$
How many bits are required to encode all twenty six letters, ten symbols, and ten numerals?$5$$6$$7$$46$
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0 votes
2 answers
518
NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 32
The maximum data rate of a channel of $3000$-Hz bandwidth and SNR of $30$ db is $60000$ $15000$ $30000$ $3000$
The maximum data rate of a channel of $3000$-Hz bandwidth and SNR of $30$ db is$60000$$15000$$30000$$3000$
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1 votes
4 answers
520
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 22
If the original size of data is $40$ then after adding error detection redundancy bit the size of data length is $26$ $36$ $46$ $56$
If the original size of data is $40$ then after adding error detection redundancy bit the size of data length is$26$$36$$46$$56$
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0 votes
1 answer
521
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 23
Which of the following would not be specified in a communication protocol? Header contents Trailer contents Error Checking Data content of message
Which of the following would not be specified in a communication protocol?Header contentsTrailer contentsError CheckingData content of message
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0 votes
2 answers
523
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 26
If the channel is band limited to $6\;kHz$ and signal to noise ratio is $16,$ what would be the capacity of channel? $16.15$ kbps $23.24$ kbps $40.12$ kbps $24.74$ kbps
If the channel is band limited to $6\;kHz$ and signal to noise ratio is $16,$ what would be the capacity of channel?$16.15$ kbps$23.24$ kbps$40.12$ kbps$24.74$ kbps
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3 votes
1 answer
525
NIELIT 2017 DEC Scientific Assistant A - Section B: 11
Closed - Loop control mechanism try to : Remove congestion after it occurs Remove congestion after sometime Prevent congestion before it occurs Prevent congestion before sending packets
Closed - Loop control mechanism try to :Remove congestion after it occursRemove congestion after sometimePrevent congestion before it occursPrevent congestion before send...
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0 votes
2 answers
526
NIELIT 2017 DEC Scientific Assistant A - Section B: 12
In classless addressing, there are no classes but addresses are still granted in : Codes Blocks IPs Sizes
In classless addressing, there are no classes but addresses are still granted in : CodesBlocksIPsSizes
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0 votes
1 answer
527
NIELIT 2017 DEC Scientific Assistant A - Section B: 13
Which multiple access technique is used by $\text{IEEE } 802.11$ standard for wireless $\text{LAN}$ ? $\text{CDMA}$ $\text{CSMA/CA}$ $\text{ALOHA}$ None of the options
Which multiple access technique is used by $\text{IEEE } 802.11$ standard for wireless $\text{LAN}$ ?$\text{CDMA}$$\text{CSMA/CA}$$\text{ALOHA}$None of the options
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0 votes
2 answers
528
NIELIT 2017 DEC Scientific Assistant A - Section B: 14
$PGP$ encrypts data by using a block cipher called : international data encryption algorithm private data encryption algorithm internet data encryption algorithm none of the options
$PGP$ encrypts data by using a block cipher called :international data encryption algorithmprivate data encryption algorithminternet data encryption algorithmnone of the ...
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1 votes
1 answer
529
NIELIT 2017 DEC Scientific Assistant A - Section B: 24
A subnet mask in class $C$ can have _____________ $1$’s with the remaining bits $0$’s. $10$ $24$ $12$ $7$
A subnet mask in class $C$ can have _____________ $1$’s with the remaining bits $0$’s.$10$$24$$12$$7$
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0 votes
2 answers
530
NIELIT 2017 DEC Scientific Assistant A - Section B: 25
What is the value of acknowledgement field in a segment Number of previous bytes to receive Total number of bytes to receive Number of next bytes to receive Sequence of zero's and one's
What is the value of acknowledgement field in a segmentNumber of previous bytes to receiveTotal number of bytes to receiveNumber of next bytes to receiveSequence of zero'...
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