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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

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382
Applied Test Series
In the CSMA/CD network the bandwidth of the link is 10 Mbps, two stations are connected at both the ends of the link. The speed of the transmission on the links is 5 x 10 ^6 m/sec. What is the length of the link in kilometre, if the minimum frame size is 500 bytes ?
In the CSMA/CD network the bandwidth of the link is 10 Mbps, two stations are connected at both the ends of the link. The speed of the transmission on the links is 5 x 10...
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0 answers
384
Computer Networks
How do we calculate the time in this scenario
How do we calculate the time in this scenario
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0 answers
385
Introduction to Modern Cryptography
Let $\varepsilon>0$ be a constant. Say an encryption scheme is $\varepsilon$-perfectly secret if for every adversary $\mathcal{A}$ ... scheme that is $\varepsilon$-perfectly secret must have $|\mathcal{K}| \geq(1-2 \varepsilon) \cdot|\mathcal{M}| $
Let $\varepsilon>0$ be a constant. Say an encryption scheme is $\varepsilon$-perfectly secret if for every adversary $\mathcal{A}$ it holds that$$\operatorname{Pr}\left[\...
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0 answers
386
assignment
2. Propose a mechanism that virtual circuit switches might use so that if one switch loses all its state regarding connections then a sender of packets along a path through that switch is informed of the failure.
2. Propose a mechanism that virtual circuit switches might use so that if one switch loses all its state regarding connections then a sender of packets along a path throu...
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1 votes
1 answer
390
Applied Test Series
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for the network if the speed is 4 * 10 ^4 m/sec ?
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for t...
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4 votes
1 answer
391
Applied Test Series
Suppose that the PURE ALOHA protocol is used to share a 50 Kbps satellite channel, suppose that frames are 1000 bits long. Find the maximum throughput of the system in frames/second. [Note: Assume K = 10^3, write the floor value of the answer]
Suppose that the PURE ALOHA protocol is used to share a 50 Kbps satellite channel, suppose that frames are 1000 bits long. Find the maximum throughput of the system in fr...
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1 votes
1 answer
392
Applied Test Series
What will be the length of maximum burst in sec where the capacity of the router is 10MB. The maximum output rate of the router is 20 MBPS and the token rate is 12 MBPS.
What will be the length of maximum burst in sec where the capacity of the router is 10MB. The maximum output rate of the router is 20 MBPS and the token rate is 12 MBPS.
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2 votes
2 answers
395
Applied Test Series
In the TCP connection, the maximum segment size used by the connection is 1000 bytes. What is the congestion window(in bytes) after the 4th transmission and receives acks for all of them? Assume the connection uses only slow-start ?
In the TCP connection, the maximum segment size used by the connection is 1000 bytes. What is the congestion window(in bytes) after the 4th transmission and receives acks...
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1 votes
1 answer
397
Applied Test Series
Consider a selective repeat sliding window protocol, the window size of the sender is 128. What will be the sequence number for the 800th frame? [ Assume the available sequence number are the minimum required for window size of 128]
Consider a selective repeat sliding window protocol, the window size of the sender is 128. What will be the sequence number for the 800th frame? [ Assume the available se...
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1 votes
2 answers
398
Applied Test Series
For the given network address 178.100.0.0 we need the 2000 subnets and 15 usable hosts then what will be the subnet mask for this allotment ?
For the given network address 178.100.0.0 we need the 2000 subnets and 15 usable hosts then what will be the subnet mask for this allotment ?
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