Recent questions in Computer Networks

0 votes

0 answers

1

Self doubt
What does it mean by end to end communication?? Do routers do end to end communication??

asked 6 hours ago in Computer Networks by Rajucse (73 points) | 9 views

0 votes

0 answers

2

#sr protocol
in sr protocol, we get negative acknowledgment whenever there is packet lost or when a packet got corrupted at receiver side?

asked 12 hours ago in Computer Networks by harsh yadav (37 points) | 6 views

0 votes

0 answers

3

#tanenbaum
A router is blasting out IP packets whose total length (data plus header) is1,024 bytes. Assuming that packets live for 10 sec, what is the maximum data line speed the router can operate at without danger or cycling through the IP datagram ID number space? my solution: Packet ... bandwith= 512mb/ 10 sec =51.2 mbps ... . .but answer given is 53.68mbpsi dont know where i am wrong?

asked 12 hours ago in Computer Networks by harsh yadav (37 points) | 6 views

0 votes

0 answers

4

#sr Protocol
in Selective Repeat protocol, for every packet lost do we have a negative acknowledgment or when we have only corrupt bits then only receiver sends a negative acknowledgment?

asked 12 hours ago in Computer Networks by harsh yadav (37 points) | 3 views

0 votes

0 answers

5

# networking
IP is a Packet stream protocol and it has identification number bits=16. What does this mean whether ”it can have 2^16 distinct packets at max” or “in a packet, we can have a maximum of 2^16 bits only”

asked 12 hours ago in Computer Networks by harsh yadav (37 points) | 4 views

0 votes

0 answers

6

Gateforum Test Series
Suppose you are designing a sliding window protocol for a $1Mbps$ point to point link which has one way latency of $1.25s$. Assuming that each frame carries $1kB$ of data, determine the minimum number of bits required for the sequence number. Answer provided - $9$ bits.

asked 17 hours ago in Computer Networks by Gupta731 Active (3k points) | 5 views

0 votes

0 answers

7

Madeeasy [Pipelining]
Consider a 5 stage pipeline with Instruction Fetch(IF),Instruction decode(ID),Execute(EX),Write back(WB),and Memory access(MA) having latencies(in ns) 3,8,5,6 and 4 respectively. What is average CPI of NON-PIPELINE CPU when speedup achieved by pipelined processor is 4?

asked 20 hours ago in Computer Networks by jatin khachane 1 Active (3.5k points) | 87 views

0 votes

0 answers

8

Madeeasy[CN-Flow control]
Consider two computers A and B are connected through a network of 30 Mbps.Assume the distance between them is 3000km and the signal propagation speed is same as the speed of light and the packet size is 12 KB. What is minimum number of bits required for window to achieve 100% utilization during GBN and SR protocol ?

asked 21 hours ago in Computer Networks by jatin khachane 1 Active (3.5k points) | 30 views

0 votes

0 answers

9

ME test 2019
for Transmission delay, 2KB, K shall be 1024 and NOT 1000 as its data, right?

asked 1 day ago in Computer Networks by Markzuck (161 points) | 13 views

0 votes

0 answers

10

Madeeasy test doubt 2019
shouldn’t the ans be 5600? as it takes 14 RTTs to get back to full size ans given is considered 15 RTTs please confirm

asked 1 day ago in Computer Networks by Markzuck (161 points) | 25 views

0 votes

0 answers

11

Madeeasy test doubt
shouldn’t the ans be 5600? as it takes 14 RTTs to get back to full size ans given is considered 15 RTTs please confirm

asked 1 day ago in Computer Networks by Markzuck (161 points) | 8 views

0 votes

0 answers

12

ME TEST 1
Consider a very large network of 10000 routers. Two host A and B are connected with this network. Host A sends data to host B and after some unit of time host A receives ICMP time exceeded message for the same data packet. The maximum number of routers that can be travelled by packets when ICMP message reaches back to host A is…….

asked 1 day ago in Computer Networks by himgta Active (2.9k points) | 52 views

0 votes

0 answers

13

gfg quiz
From a large set of prime numbers Jimmy choose 23 and 17 as P and Q respectively and a random integer to be 13. Jimmy wants to sends a plain text to M = 127. What will be the value of cipher text using RSA? since i am getting ciphertext =(127^13) mod 391 now how should i calculate

asked 1 day ago in Computer Networks by vijju532 Junior (725 points) | 21 views

0 votes

0 answers

14

ME test series
Assume 2 computers are connected via a network. The network uses Go-Back 7 sliding window protocol for maintaining flow control. It is observed that every 5th packet that has been sent through the network is lost. What will be the number of extra packets that has to be resent for transmitting 10 such packet through the network? With explanation.

asked 2 days ago in Computer Networks by Subham Nagar Junior (901 points) | 79 views

0 votes

0 answers

15

Channel Utilization
Consider a LAN with 500 stations connected to five 500 m segments. The data rate is 10 Mbps and slot time is 51.2 micro sec, If all the stations transmit With equal probability what is the channel utilization using a frame size of 512 bytes? Note-Number of contention slots are 1.716 how to proceed with these kind of questions?

asked 2 days ago in Computer Networks by aditi19 Active (2.2k points) | 18 views

0 votes

0 answers

16

# CN TCP connection establishment doubt about MSS

asked 2 days ago in Computer Networks by iarnav Loyal (9.3k points) | 31 views

0 votes

1 answer

17

grade up
Consider CSMA/CD protocol, after 4th collision, what is the probability that node choose k=4.

asked 3 days ago in Computer Networks by sim1234 (213 points) | 31 views

0 votes

1 answer

18

self doubt
if N is the maximum number of sequence numbers then sender window size in GBN protocol and SR protocol is ?

asked 3 days ago in Computer Networks by Chetan28kumar (179 points) | 17 views

0 votes

0 answers

19

Number of subnets can be formed by using the subnet mask 255.255.248.0 in a class B network _________

asked 3 days ago in Computer Networks by rahuljai (411 points) | 59 views

0 votes

0 answers

20

self doubts
Is there any difference in round trip delay when change in transmission medium like double duplex single, single duplex and half duplex with respected to n packets transmitted from A to B.

asked 3 days ago in Computer Networks by Gawade Sahadev (213 points) | 8 views

+1 vote

1 answer

21

Madeeasy
Assume 2 computers are connected via a network. The network uses GB-7 sliding window protocol for flow control.It is observed that every 5th packet that has been sent is lost. The number of extra packets needs to resend Number of total packets transmitted by sender for sending 10 packets .

asked 3 days ago in Computer Networks by jatin khachane 1 Active (3.5k points) | 50 views

0 votes

1 answer

22

ME CN 1
Consider the following statements: Which of the above statement is correct? A Hidden terminals can be handled by using either of RTS or CTS control frame. B RTS/CTS exchange helps in reducing collisions and leads to efficient use of channel resources. C 802.11 frame has three address fields. D By the help of 802.11 frame, we can come to known whether encryption is used on n

asked 4 days ago in Computer Networks by himgta Active (2.9k points) | 22 views

0 votes

0 answers

23

made easy test series
In the network 143.128.67.235 / 20, it x represent the decimal value of 3rd octet and y represent the decimal value of 4th octet of last IP address assigned to any host, then the value of x*y is

asked 5 days ago in Computer Networks by scarz (51 points) | 17 views

0 votes

0 answers

24

ME OTS 1
Explain a bit.

asked 5 days ago in Computer Networks by HeadShot Active (3.7k points) | 21 views

–1 vote

0 answers

25

ace test series

asked 5 days ago in Computer Networks by neha1992 (123 points) | 26 views

+2 votes

0 answers

26

Ace test series
If $p$ is a prime number such that $a^{p-1}=r(mod$ $p).$ Then the value of $r $ for $a=6,p=3.$

asked 5 days ago in Computer Networks by talha hashim Active (4.5k points) | 48 views

0 votes

0 answers

27

Self Doubt
What is the maximum size of packet which one host can send to other host through application layer?.

asked 5 days ago in Computer Networks by raahul Junior (687 points) | 14 views

0 votes

0 answers

28

IP Header Doubt
https://gateoverflow.in/2062/gate2014-3-28 In the above question we are subtracting the header length from the IP paxket to find out number of IP fragments. But in this question https://gateoverflow.in/8255/gate2015-2-52 Why we are adding the header length to the UDP datagram to find number of IP fragments?

asked 5 days ago in Computer Networks by Shamim Ahmed Active (1.1k points) | 12 views

0 votes

0 answers

29

Tcpmaximum transmission rate

asked 6 days ago in Computer Networks by saumya mishra Active (1.5k points) | 21 views

0 votes

0 answers

30

ME test series

asked 6 days ago in Computer Networks by kallu singh Junior (937 points) | 25 views

tags	tag:apple
author	user:martin
title	title:apple
content	content:apple
exclude	-tag:apple
force match	+apple
views	views:100
score	score:10
answers	answers:2
is accepted	isaccepted:true
is closed	isclosed:true

Recent questions in Computer Networks

Recent Posts

Recent Blog Comments