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Concept of layering. LAN technologies (Ethernet).Flow and error control techniques, Swithing. IPv4/ IPv6, Routers and routing algorithms (distance vector, link state). TCP/UDP and Sockets, Congestion control. Application layer protocols (DNS, SMTP, POP, FTP, HTTP). Basics of Wi-Fi. Network security: authentication, basics of public key and private key cryptography, digital signatures and certificates, Firewalls.

$$\small{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}&\textbf{2019}&\textbf{2018}&\textbf{2017-1}&\textbf{2017-2}&\textbf{2016-1}&\textbf{2016-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count}&1&3&2&3&2&3&1&2.3&3
\\\hline\textbf{2 Marks Count}&4&2&3&1&4&3&1&2.8&4
\\\hline\textbf{Total Marks}&9&7&8&5&10&9&\bf{5}&\bf{8}&\bf{10}\\\hline
\end{array}}}$$

Recent questions in Computer Networks

0 votes
2 answers
1
Given a mask, M=255.255.255.248. How many subnet bits are required for given mask M? (A) 2 (B) 3 (C) 4 (D)5
asked Jul 18 in Computer Networks Sanjay Sharma 136 views
0 votes
1 answer
2
In context of TCP/IP computer network models, which of the following is FALSE? Besides span of geographical area, the other major difference between LAN and WAN is that the later uses switching element. A repeater is used just to forward bits from one network to another one. IP layer is connected oriented layer in TCP/IP. A gateway is used to connect incompatible networks.
asked Mar 31 in Computer Networks Lakshman Patel RJIT 246 views
0 votes
1 answer
3
Which of the following is not a transceiver function? Transmission and receipt of data Checking of line voltages Addition and subtraction of headers Collision detection
asked Mar 31 in Computer Networks Lakshman Patel RJIT 102 views
0 votes
1 answer
4
A packet switching network is free. can reduce the cost of using an information utility. allows communications channel to be shared among more than one user. both (B) and (C).
asked Mar 31 in Computer Networks Lakshman Patel RJIT 99 views
0 votes
3 answers
5
0 votes
2 answers
6
0 votes
1 answer
7
0 votes
1 answer
8
0 votes
1 answer
9
0 votes
1 answer
10
Application layer protocol defines: types of messages exchanged rules for when and how processes send and respond to messages message format, syntax and semantics all of the above
asked Mar 31 in Computer Networks Lakshman Patel RJIT 81 views
0 votes
1 answer
11
0 votes
2 answers
13
0 votes
1 answer
14
0 votes
1 answer
15
0 votes
1 answer
16
A low pass filter is Passes the frequencies lower than the specified cut off frequency Used to recover signal from sampled signal Rejects higher frequencies All of the above
asked Mar 31 in Computer Networks Lakshman Patel RJIT 68 views
0 votes
3 answers
17
If the number of networks and number of hosts in class $B$ are $2^m, (2^n-2)$ respectively. Then the relation between $m,n$ is $3m=2n$ $7m=8n$ $8m=7n$ $2m=3n$
asked Mar 30 in Computer Networks Lakshman Patel RJIT 182 views
0 votes
1 answer
18
Let e : B^m → B^n is a group code. The minimum distance of ‘e’ is equal to : the maximum weight of a non zero code word the minimum weight of a non zero code word m n
asked Mar 28 in Computer Networks jothee 90 views
0 votes
1 answer
19
The best known example of a MAN is : Ethernet Cable Television FDDI IEEE $802.3$
asked Mar 28 in Computer Networks jothee 85 views
0 votes
1 answer
20
In a broadcast network, a layer that is often thin or non-existent is : network layer transport layer presentation layer application layer
asked Mar 28 in Computer Networks jothee 86 views
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