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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

3 votes
2 answers
1741
subnetting
is 255.255.255.52 a valid subnet mask? if yes then what is the no. of subnets?
is 255.255.255.52 a valid subnet mask? if yes then what is the no. of subnets?
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0 votes
2 answers
1745
What would be the message sent by the sender in RSA Algo ?
RSA public key cryptography used with public key pair (e,n) is given as (5 ,35) and the primitive key pair (d,n) as (29,35) . If receiver receives message as 22 , what would be the message sent by the sender : 1) 22 2) 29 3) 35 4) 31
RSA public key cryptography used with public key pair (e,n) is given as (5 ,35) and the primitive key pair (d,n) as (29,35) .If receiver receives message as 22 , what wou...
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3 votes
2 answers
1748
A router has 3 interfaces and connects 3 subnets in a 200.200.200 network with given subnet mask of interfaces .
Interface $A - 255.255.255.128$Interface $B -255.255.255.192$Interface $C -255.255.255.224$ 1) which one of the following IP addresses belong to interface $B$ ?$200.200.2...
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2 votes
3 answers
1749
BARC 2018
$\textbf{VPN}$ Works at which layer? Application layer Transport layer Network layer Data-link layer
$\textbf{VPN}$ Works at which layer?Application layerTransport layerNetwork layerData-link layer
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0 votes
0 answers
1750
How to solve
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3 votes
1 answer
1751
There are 3 departments A,B , C in an organisation , what is the possible broadcast address for each subnet ?
Each of the department requires a separate subnet and respective requirement of address being 28 , 14 and 53 .Also organization got a class C network address 216.85.102.0...
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–1 votes
0 answers
1753
IP Addressing
Station A is assigned with IP address $171.60.50.2$. Find out the following details regarding this IP? No. of Subnet possible on this Network No. of host possible on each subnet Which Subnet this network is on Range of address on that subnet
Station A is assigned with IP address $171.60.50.2$. Find out the following details regarding this IP?No. of Subnet possible on this NetworkNo. of host possible on each s...
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5 votes
3 answers
1754
IP Addresses
A network has subnet mask $255.255.255.254$. Determine the maximum or number of Host in this network. Also determine the broadcast address of this network.
A network has subnet mask $255.255.255.254$. Determine the maximum or number of Hostin this network. Also determine the broadcast address of this network.
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0 votes
1 answer
1755
Computer networks
How it is possible for computer to have multiple ip address at different instance of time?
How it is possible for computer to have multiple ip address at different instance of time?
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1 votes
1 answer
1756
Computer Networks
Why CRC is added at the end of frame?
Why CRC is added at the end of frame?
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1 votes
2 answers
1757
OSI - Layer
Encode / Decode data for physical transmission is done by which layer of OSI reference model?
Encode / Decode data for physical transmission is done by which layer of OSI reference model?
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5 votes
2 answers
1758
IP addressing problem
$\text{If Direct Broadcast Address of subnet is}$ $201.15.16.31$. $\text{Which of the following is subnet mask?}$ $255.255.255.240$ $255.255.255.192$ $255.255.255.198$ $\text{None Of the Above}$
$\text{If Direct Broadcast Address of subnet is}$ $201.15.16.31$.$\text{Which of the following is subnet mask?}$$255.255.255.240$$255.255.255.192$$255.255.255.198$$\text{...
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0 votes
0 answers
1759
Gate academy workbook
How many number of frames will be actually transmitted by $A$ (including retransmission) to complete the task if ACK timer is one unit long (The ACK timer delays the sending of an ACK to provide an opportunity for piggybacking) $6$ $7$ $8$ $9$ answer is D please explain
How many number of frames will be actually transmitted by $A$ (including retransmission) to complete the task if ACK timer is one unit long (The ACK timer delays the send...
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