Register

Web Page

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.

.$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2024-1} & \textbf{2024-2} & \textbf{2023}&  \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 3&3&2& 2 &1&1&1&2&3
\\\hline\textbf{2 Marks Count} & 3&3&3& 4 &4&3&3&3.33&4
\\\hline\textbf{Total Marks} & 9&9&8& 10 &9&7&\bf{7}&\bf{8.67}&\bf{10}\\\hline
\end{array}}}$$

Filter

Recent questions in Computer Networks

#4521
25.5k
views
6 answers
78 votes
GATE IT 2008 | Question: 64
A $1\;\text{Mbps}$ satellite link connects two ground stations. The altitude of the satellite is $36,504\;\text{km}$ ... $60\;\text{bytes}$240\;\text{bytes}$90\;\text{bytes}$
User Avatar
#4522
6.8k
views
4 answers
30 votes
GATE IT 2008 | Question: 20
Provide the best matching between the entries in the two columns given in the table below: ... -a, II-c, III-d, IV-b}$\text{I-b, II-c, III-d, IV-a}$
User Avatar
#4523
16.7k
views
7 answers
29 votes
GATE IT 2008 | Question: 18
How many bytes of data can be sent in $15$ seconds over a serial link with baud rate of $9600$ in asynchronous mode with odd parity and two stop bits in the frame?$10,000$ bytes$12,000$ bytes$15,000$ bytes$27,000$ bytes
User Avatar
#4524
2.5k
views
1 answers
9 votes
GATE CSE 1995 | Question: 17a
An asynchronous serial communication controller that uses a start-stop scheme for controlling the serial I/O of a system is programmed for a string of length seven ... string $ 0110101'?$How many such string can be transmitted per second?
User Avatar
#4525
7.9k
views
5 answers
27 votes
GATE CSE 1995 | Question: 1.12
What is the distance of the following code $000000$, $010101$, $000111$, $011001$, $111111$?$2$3$4$1$
User Avatar
#4526
9.1k
views
7 answers
32 votes
GATE CSE 1994 | Question: 9
Following $7$ ... the message contains an error find the bit which is erroneous and gives correct message.
User Avatar
#4527
669
views
2 answers
0 votes
computer networks
Tanenbaum connection establishment
User Avatar
#4528
24.7k
views
7 answers
63 votes
GATE CSE 2010 | Question: 54
Consider a network with $6$ routers $\textbf{R1}$ to $\textbf{R6}$ connected with links having weights as shown in the following diagram.All the routers use the distance ... $3$2$1$
User Avatar
#4529
15.5k
views
4 answers
35 votes
GATE CSE 2010 | Question: 47
Suppose computers $A$ and $B$ have $IP$ addresses $10.105.1.113$ and $10.105.1.91$ respectively and they both use same netmask $N$. Which of the values of $N$ ... $255.255.255.128$255.255.255.192$255.255.255.224$
User Avatar
#4530
11.2k
views
2 answers
38 votes
GATE CSE 1993 | Question: 6.4, ISRO2008-14
Assume that each character code consists of $8$ bits. The number of characters that can be transmitted per second through an asynchronous serial line at $2400$ baud rate, and with two stop bits is$109$216$218$219$
User Avatar
#4531
4.1k
views
3 answers
11 votes
GATE CSE 1997 | Question: 2.3
Purpose of a start bit in $\text{RS-232}$ serial communication protocol is:to synchronize receiver for receiving every byteto synchronize receiver for ... a sequence of bytesa parity bitto synchronize receiver for receiving the last byte
User Avatar
#4532
9.9k
views
6 answers
20 votes
GATE CSE 2010 | Question: 15. PGEE 2018
One of the header fields in an IP datagram is the Time-to-Live (TTL) field. Which of the following statements best explains the need for this field?It can ... .It can be used to optimize throughput.It can be used to prevent packet looping.
User Avatar
#4533
25.0k
views
4 answers
49 votes
GATE CSE 2011 | Question: 52
Consider a network with five nodes, $N1$ to $N5$, as shown as below.The network uses a Distance Vector Routing protocol. Once the routes have been stabilized, the distance vectors at different nodes ... $(7, 2, 0, 2, 6)$
User Avatar
#4534
40.4k
views
7 answers
74 votes
GATE CSE 2012 | Question: 45
Consider an instance of TCP's Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of the slow start phase is $2$ MSS and the ... end of the tenth transmission.$8$ MSS$14$ MSS$7$ MSS$12$ MSS
User Avatar
#4535
26.9k
views
8 answers
79 votes
GATE CSE 2012 | Question: 44
Consider a source computer $(S)$ transmitting a file of size $10^{6}$ bits to a destination computer $(D)$ over a network of two routers $(R_{1}\text{ and }R_{2})$ ... $?$\text{1005 ms}$\text{1010 ms}$\text{3000 ms}$\text{3003 ms}$
User Avatar
#4536
10.1k
views
3 answers
30 votes
GATE CSE 2011 | Question: 4
Consider the different activities related to email.$\text{m1}:$ Send an email from mail client to mail server$\text{m2}:$ ...
User Avatar
#4537
17.3k
views
3 answers
42 votes
GATE CSE 2011 | Question: 2
A layer-$4$ firewall (a device that can look at all protocol headers up to the transport layer) CANNOTblock entire $\text{HTTP}$ traffic during $9:00PM$ ... from a specific user on a multi-user system during $9:00PM$ to $5:00AM$
User Avatar
#4538
22.2k
views
10 answers
49 votes
GATE CSE 2014 Set 3 | Question: 28
An $IP$ router with a $\text{Maximum Transmission Unit (MTU)}$ of $1500$ bytes has received an $IP$ packet of size $4404\text{ bytes}$ with an $IP$ header of ... $\text{MF bit}$: $0,$ Datagram Length$: 1424;$ Offset$: 2960$
User Avatar
#4539
22.6k
views
11 answers
81 votes
GATE CSE 2014 Set 3 | Question: 27
Every host in an $\textsf{IPv4}$ network has a $1\text{-second}$ ... After what period (in seconds) will the identifiers generated by a host wrap around?
User Avatar
#4540
18.0k
views
6 answers
51 votes
GATE CSE 2014 Set 3 | Question: 26
An IP router implementing Classless Inter-domain Routing (CIDR) receives a packet with address $131.23.151.76$. The router's routing table has the ... identifier of the output interface on which this packet will be forwarded is ______.
User Avatar
Page: