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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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GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 10
Which of the following is/are true in context of error control? A CRC of length $\text{R}$ is calculated over a message of length $\text{M}$ ... code set has a minimum Hamming distance of two. A larger Hamming distance is needed to detect errors than to correct errors.
Which of the following is/are true in context of error control?A CRC of length $\text{R}$ is calculated over a message of length $\text{M}$ bits. The CRC will detect all ...
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783
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1 answers
6 votes
GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 35
Consider two TCP connections $\text{A}$ and $\text{B}:$ The RTT for connection $\text{A}$ is $100$ ms while the RTT for connection $\text{B}$ is $200$ ms. Let $\textsf{ssthresh}$ denote the threshold at which the congestion ... end up sending $65$ more packets than connection $\text{A}$ in interval $[\text{T}, \text{T}+1]$ seconds.
Consider two TCP connections $\text{A}$ and $\text{B}:$The RTT for connection $\text{A}$ is $100$ ms while the RTT for connection $\text{B}$ is $200$ ms. Let $\textsf{sst...
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888
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9 votes
GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 39
Consider a $\text{TCP}$ flow sending three segments, namely $1,2,$ and $3.$ Due to congestion, the $\text{TCP}$ flow experiences exactly two losses. Only segments can be lost; acknowledgments are not lost. Segments $1$ and $3$ are ... for all packets successfully? $\text{3 RTTs}$ $\text{5 RTTs}$ $\text{6 RTTs}$ $\text{8 RTTs}$
Consider a $\text{TCP}$ flow sending three segments, namely $1,2,$ and $3.$ Due to congestion, the $\text{TCP}$ flow experiences exactly two losses. Only segments can be ...
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989
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2 answers
10 votes
GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 40
Consider a network with two links. Node $\text{A}$ is trying to send packets to node $\text{C}.$ Let $p 1$ be the probability of failure on the first link $\text{(A-B)}$, and $p2$ ... C. $\dfrac{p_1}{1-p_1}+\dfrac{p_2}{1-p_2}$ D. $\dfrac{1}{\left(1-p_1\right)\left(1-p_2\right)}$
Consider a network with two links.Node $\text{A}$ is trying to send packets to node $\text{C}.$Let $p 1$ be the probability of failure on the first link $\text{(A-B)}$, a...
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292
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Gate Workbook
IP = 201.15.16.19 Subnet mask = 255.255.255.224 Which of the following can be possible subnet ID? (Multiple Select Question) a) 201.15.16.96 b) 201.15.16.48 c) 201.15.16.64 d) 201.15.16.78
IP = 201.15.16.19Subnet mask = 255.255.255.224Which of the following can be possiblesubnet ID? (Multiple Select Question) a) 201.15.16.96b) 201.15.16.48c) 201.15.16.64d) ...
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NTRO - 2023 | Computer Networks
An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: 245.248.128/20. The ISP wants to give half of this chunk of addresses to Organization A, and a quarter to Organization , while retaining the remaining with itself. Which of ... (C) 245.248.132.0/21 and 245.248.132.0/21 (D) 245.248.136.0/22 and 245.248.132.0/21
An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: 245.248.128/20. The ISP wants to give half of this chunk of addre...
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387
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1 answers
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This question is from Made easy and the chapter is Computer Networks
Please give the full solution to this
Please give the full solution to this
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219
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computer network
If window receiver size is 64 KB and The round trip time of a connection is 50 msec and maximum segment size used is 4 KB.In slow start phase the current congestion window size is 16 MSS and sender gets 4 ACK then then what should be value of congestion window (In KB)
If window receiver size is 64 KB and The round trip time of a connection is 50 msec and maximum segment size used is 4 KB.In slow start phase the current congestion windo...
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598
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1 answers
4 votes
GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 32
On a wireless link, the probability of successfully sending a packet is $0.1.$ A stop-and-wait protocol is used to transfer data across the link. The channel condition is assumed to be independent of ... is the expected number of packets that experience timeout to send one packet? (Timeout occurs on unsuccessful transmission)
On a wireless link, the probability of successfully sending a packet is $0.1.$ A stop-and-wait protocol is used to transfer data across the link. The channel condition is...
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536
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1 answers
1 votes
GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 33
The "two-out-of-five" code comprises all possible binary words of length $5$ containing exactly two $1$'s. Which of the following statements is correct regarding error detection or correction for the "two-out- ... detect up to $1$ bit of error and cannot correct errors. The code cannot detect or correct any errors.
The "two-out-of-five" code comprises all possible binary words of length $5$ containing exactly two $1$'s. Which of the following statements is correct regarding error de...
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861
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1 answers
8 votes
GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 55
Consider two hosts $A$ and $B$, connected to router $R$, creating two subnets: Subnet $1$ and Subnet $2,$ as shown in the figure. The interface IPs of Subnet $1$ are also depicted in the given diagram. Assume that, for every subnet, the all-zeros address ... $125.126 .11 .16 / 27$ $125.126 .11 .16 / 28$ $125.126 .11 .28 / 30$
Consider two hosts $A$ and $B$, connected to router $R$, creating two subnets: Subnet $1$ and Subnet $2,$ as shown in the figure. The interface IPs of Subnet $1$ are also...
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670
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1 answers
5 votes
GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 56
Host A has to inject' $30$ Mbits of data into a network via a token bucket regulator. The token bucket has a capacity of $15$ Mbits and is filled with tokens at the rate of $5$ Mbps. Data is buffered if it arrives ... enter the network, assuming that the host sends at a peak rate of $20$ Mbps and the token bucket is initially full?
Host A has to ‘inject’ $30$ Mbits of data into a network via a token bucket regulator. The token bucket has a capacity of $15$ Mbits and is filled with tokens at the ...
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1 answers
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Ace test series
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ISRO 2024
Which of the following is the cause of Ping of death issue related to ICMP packets? Buffer overflow Divide by ZERO Missing input sanitization Privilege escalation
Which of the following is the cause of Ping of death issue related to ICMP packets?Buffer overflowDivide by ZEROMissing input sanitizationPrivilege escalation
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334
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1 answers
3 votes
ISRO 2024
Which of the following methods is used to detect double errors? Odd parity Even parity Checksum (CRC) Checksum (XOR)
Which of the following methods is used to detect double errors?Odd parityEven parityChecksum (CRC)Checksum (XOR)
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229
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#selfdoubt
In CRC, if the dataword is 5 bits and the codeword is 8 bits, how many 0s need to be added to the dataword to make the dividend? What is the size of the remainder? What is the size of the divisor?
In CRC, if the dataword is 5 bits and the codeword is 8 bits, how many 0s need to be added to the dataword to make the dividend? What is the size of the remainder? What i...
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208
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1 answers
0 votes
ISRO 2024
Which of the following is true? Both Parity and Cyclic Redundancy Check are error correcting codes Both Parity and Low Density Parity Check Code are error correcting codes Both Reed-Solemn code and Low Density Parity Check Code are error correcting codes Both Cyclic ... ! This question is asked in ISRO 2024. Due to insufficient points, couldn't add isro2024' tag, Please add it.
Which of the following is true?Both Parity and Cyclic Redundancy Check are error correcting codesBoth Parity and Low Density Parity Check Code are error correcting codesB...
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