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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

#1701
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Computer Network Kuros and Ross
Please explain P8 in detail.
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#1702
391
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Parity Bit and Error Checking
When finding out error in this block matrix, the first error when checking column wise is in d2, right? So, the error in d2 in turn causes error at d3 ... then total number of errors is more than the highest number given in the options.
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#1703
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#computer-network #NAT-mechanism #Routing
I have a Doubt regarding NAT mechanism provided by the routers/Modem. We know that private IPs assign to a device is dynamic using NAT mechanism it can differ for a ... that server (IP is 30.78.76.55 ) in which it was previously requested?
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#1704
392
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1 answers
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Sequence Number and TCP Flag
Which of the flags don't consume any sequence number?FINPSHACKRST
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#1705
356
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1 answers
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data link layer
is fragmentation possible in data link layer??
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#1706
203
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data link layer
why stop & wait is connection oriented protocal???
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#1707
510
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data link layer
piggybacking is full duplex or half duplex transmission protocol??plz explain !!
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#1708
190
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TANENBAUM
To provide error correction for 1000-bit blocks, that 10 check bits are needed in hamming code single bt error correction. Thus, a megabit of data would require 10, ... be 2000 bits ( block in error(1000) + retransmiited block(1000) ).
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#1709
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Kuros & Ross Ch.1 P7
P7. In this problem, we consider sending real-time voice from Host A to Host Bover a packet-switched network (VoIP). Host A converts analog voice to adigital 64 kbps ... A) until thebit is decoded (as part of the analog signal at Host B)?
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#1710
979
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1 answers
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why does TCP/IP Peform Error checking both at network layer and Transport Layer ?
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#1711
466
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0 answers
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ISI CSB 2017
Consider a simple code in which each codeword consists of $2$ data bits $[d1, d0]$ and $3$ check bits $[c2, c1, c0]$.The check bits are computed as ... (iii) How many errors in a codeword can be corrected by this code? Justify your answer.
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#1712
410
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2 answers
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Bit rate choice in video conferencing
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#1713
1.6k
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2 answers
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Tanenbaum Networks
A 1024-bit message is sent that contains 992 data bits and 32 CRC bits. CRC is com- puted using the IEEE 802 standardized, 32-degree CRC polynomial. For each ... bit long burst error. In the above question can anyone explain for option (c).
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#1714
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1 answers
1 votes
Transmission Protocol
Suppose, In Selective Repeat Protocol 10 packets are sent and every 4th packet is lost. Then, 1 2 3 4 4 5 6 7 7 8 9 10 10 {bold denote lost packets, so retransmitted!} Is this the right order of transmission of packet no.??
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#1715
337
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COMPUER NETWORK
Djikstra’s algorithm is used to:Create LSAsFlood an internet with informationCalculate the routing tablesCreate a link state database
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#1716
820
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1 answers
2 votes
Computer Networking A top down approach(Packet switching)
How long does it take a packet of length L to propagate over a link of distance D, propagation speed S, and transmission rate R bps. Does this delay depend ... possible. Until the packet is transmitted , it can't be propagate over the link.
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#1717
799
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BITS HD
If webpage www.bitspilani.ac.in which has 10 objects is requested, then how many port number is to be requested ?
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#1718
769
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2 answers
2 votes
Sliding window protocol
Why sender and receiver window size are same in selective repeat?
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#1719
575
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2 answers
1 votes
MadeEasy Test Series 2017: Computer Networks - Sliding Window
Consider the sliding window protocol used at transport layer to transfer the segments, the receiver sends ACK K + 1 when it receives a packet with sequence number ... sender iff a new (previously unseen) ACK arrives.(D) None of the above
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#1720
1.8k
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3 answers
2 votes
MadeEasy Test Series 2017: Computer Networks - Distance Vector Routing
Consider the following statements, when a distance vector routing protocol finding minimum cost paths suffers from count to infinity problem:S1 : The count-to-infinity problem may arise ... S3(B) Only S2 AND S3(C) Only S2(D) All of them
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