Recent questions tagged computer-networks - GATE Overflow

First time here? Checkout the FAQ!

x

0 votes

1 answer

1

Suppose A is connected to B via an intermediate router R ?

asked 1 day ago in Computer Networks by radha gogia Loyal (6.9k points) | 17 views

0 votes

1 answer

2

what are the possible sets of sequence numbers inside the sender's window at time t in Go Back N ?

asked 2 days ago in Computer Networks by radha gogia Loyal (6.9k points) | 32 views

0 votes

0 answers

3

How many times the average message would be transmitted ?

asked 2 days ago in Computer Networks by radha gogia Loyal (6.9k points) | 15 views

+1 vote

1 answer

4

ISI PCB 2016 C2 A
Consider sending a large file of $360,000$ bits from Host $A$ to Host $B$, connected through a router. Assume that there is no queuing and propagation delay, and the router has sufficient buffer space. Host $A$ splits the file into segments of $S$ bits each and ... rate of $R$ bps. Find the value of $S$ that minimizes the time needed to move the file from Host $A$ to Host $B$.

asked 2 days ago in Computer Networks by kapilkant yadav (33 points) | 17 views

+1 vote

0 answers

5

In which protocol is it possible for the sender to receive an ACK for a packet that falls outside its current window ?

asked 2 days ago in Computer Networks by radha gogia Loyal (6.9k points) | 25 views

0 votes

1 answer

6

what is the difference between the flow control mechanism provided by data link layer and transport layer ?

asked Apr 11 in Computer Networks by radha gogia Loyal (6.9k points) | 43 views

+1 vote

2 answers

7

what is the DH Key ?
Suppose 2 parties A and B wish to setup a common secret key among themselves using DH key exchange technique . They agree on 619 as the modulus and 3 as primitive root . Party A chooses 16 and party B chooses 15 as their respective secrets . what is DH key ? A) 21 B) 24 C) 242 D) 223

asked Apr 10 in Computer Networks by radha gogia Loyal (6.9k points) | 72 views

0 votes

2 answers

8

What would be the message sent by the sender in RSA Algo ?

asked Apr 10 in Computer Networks by radha gogia Loyal (6.9k points) | 82 views

+1 vote

0 answers

9

Stanford Midterm QUestion
Help me sort this out. Any sort of help appreciated. PFA:

asked Apr 10 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 32 views

+1 vote

1 answer

10

Computer Network
Help me out with this, any sort of help appreciated. What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)? OPTIONS: 691,200 kb/s 28.8 kb/s 8.29 Mb/s 829 Mb/s

asked Apr 10 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 20 views

0 votes

0 answers

11

Computer Network Gate 2005 IT
In a communication network, a packet of length L bits takes link L1 with a probability of p1or link L2 with a probability of p2. Link L1 and L2 have bit error probability of b1 and b2respectively. The probability that the packet will be received without error via either L1 or L2 is A) (1 ... )Lp2 B) [1 - (b1 + b2)L]p1p2 C) (1 - b1)L (1 - b2)Lp1p2 D) 1 - (b1Lp1 + b2Lp2)

asked Apr 8 in Computer Networks by Ahsanul Hoque (163 points) | 25 views

+1 vote

0 answers

12

A router has 3 interfaces and connects 3 subnets in a 200.200.200 network with given subnet mask of interfaces .

asked Apr 6 in Computer Networks by radha gogia Loyal (6.9k points) | 71 views

+2 votes

3 answers

13

BARC 2018
$\textbf{VPN}$ Works at which layer? Application layer Transport layer Network layer Data-link layer

asked Apr 5 in Computer Networks by hacker16 Active (2.6k points) | 134 views

+1 vote

1 answer

14

There are 3 departments A,B , C in an organisation , what is the possible broadcast address for each subnet ?

asked Apr 3 in Computer Networks by radha gogia Loyal (6.9k points) | 126 views

+1 vote

0 answers

15

geeksforgeeks IP Addressing
An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: $245.248.128.0/20$. The ISP wants to give half of this chunk of addresses to Organization $A$, and a quarter to Organization $B$, while retaining the remaining with itself. ... .132.0/22 \text{ and } 245.248.132.0/21$ $245.248.136.0/24 \text{ and } 245.248.132.0/21$

asked Mar 31 in Computer Networks by Ahsanul Hoque (163 points) | 62 views

–1 vote

0 answers

16

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

asked Mar 27 in Computer Networks by Dipanshu Rana (41 points) | 58 views

+1 vote

3 answers

17

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.

asked Mar 27 in Computer Networks by Abhirupa (21 points) | 113 views

+1 vote

2 answers

18

OSI - Layer
Encode / Decode data for physical transmission is done by which layer of OSI reference model?

asked Mar 24 in Computer Networks by hacker16 Active (2.6k points) | 64 views

+1 vote

3 answers

19

IP addressing problem
$\text{If Direct Broadcast Address of subnet is}$ $201.15.16.31$. $\text{Which of the following is subnet mask?}$ $255.255.255.240$ $255.255.255.192$ $255.255.255.198$ $\text{None Of the Above}$

asked Mar 24 in Computer Networks by Ahsanul Hoque (163 points) | 135 views

0 votes

0 answers

20

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

asked Mar 20 in Computer Networks by Matish (7 points) | 82 views

0 votes

0 answers

21

barc test series
We have three stations $P, Q, R$ connected in serial manner. $P$ is connected to $Q$ through a $3Gbps$ fibre optic link and length is $500Km$. $Q$ is connected to $R$ through $60Mbps$ link and length is $15Km$.All the links are full duplex in nature. A ... window protocol such that $\text{SWS=RWS}$. Find the optimal $\text{SWS}$. $30$ packets $32$ packets $28$ packets $29$ packets

asked Mar 20 in Computer Networks by eyeamgj Active (1.6k points) | 92 views

+1 vote

3 answers

22

SR protocol
Suppose there are 0,1,2,3 packets in Sender window(win size =4). As both sender and receiver has same window size, out of order delivery of packets are allowed. If suppose 0,1,2,3 are sent and 0 is lost and 1,2,3 are accepted. Then after retransmission complete window will slide by N for new data or when 0 is retransmitted other 3 slots will be filled with new data??

asked Mar 17 in Computer Networks by Tushar Patil (223 points) | 60 views

0 votes

1 answer

23

Computer Networks
A $64000-byte$ message is to be transmitted over a $2-hop$ path in a store- and-forward packet-switching network. The network limits packets to a maximum size of $2032 bytes$ including a $32-byte$ header. The trans- mission lines in the network are ... at the intermediate node are negligible. How long does it take to deliver the entire message from the source to the destination?

asked Mar 15 in Computer Networks by Junaed Siddiquee (179 points) | 72 views

0 votes

2 answers

24

Test Series
Find the link utilization in stop and wait protocol if the bandwidth of the line $2 kbps$, round trip time is $20$ second and the packet size is $2000 bytes$. Answer given is $20\%$. Because they are considering only Round Trip time in calculation and not taking TT. According to me it should be $\frac{1}{1+2*\frac{10}{8}}= \frac{1}{3.5} = 0.2857 = 28.57%$

asked Mar 15 in Computer Networks by Jason Active (1.2k points) | 64 views

+1 vote

2 answers

25

TCP Connection
"TCP connection is logical, therefore TCP can be connection oriented protocol" Wha is meaning of logical connection? Can u discuss brief above two lines?

asked Mar 15 in Computer Networks by srestha Veteran (81.9k points) | 92 views

0 votes

0 answers

26

#delay #computer networks
Assume $5$ packets arrive in a burst to a router at time $t=0$ seconds, and another burst of packets arrive at $t=10s$, and so on every $10$ seconds; and if one packet departs from the router at $t=1s, t=2s, t=3s, t=4s, t=5s,$ ... 11s, t=12s, $and so on. What is the maximum number of packets in the router buffer? #delay #packet-switiching #queueing-model #playback-buffer

asked Mar 14 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 38 views

0 votes

0 answers

27

end to end delay numerical Any help appreciated.

asked Mar 13 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 45 views

+1 vote

1 answer

28

help me to sort it out ?
Help me out, provide valid arguments. Thanks PFA:

asked Mar 13 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 58 views

0 votes

0 answers

29

TCP question
Consider two TCP senders $T_{1}$, $T_{2}$ each of them is connected with a different line to a router whose capacity is $9000$ $bytes$. The bandwidth of each of the lines is infinite and the delay of each TCP sender to the router is $11$ ... $1$ $millisecond$ is negligible -packet size is equal $2000$ $bytes$ $=1$ maximum segment size -solve using packets/RTT How is this solve?

asked Mar 12 in Computer Networks by JakeSmT (17 points) | 58 views

0 votes

0 answers

30

Sliding Window Question
What will the possible correct answer, help me out. Any sort of help appreciated.

asked Mar 12 in Computer Networks by ਮਾਧਵ ਨੰਦਨ (225 points) | 139 views

Page:

1
2
3
4
5
6
...
52
next »

Follow @csegate

Gatecse

Recent questions tagged computer-networks

34,816 questions

41,803 answers

119,041 comments

41,445 users