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1

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

asked 11 hours ago in Computer Networks by radha gogia Loyal (6.9k points) | 17 views

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2

ISI PCB 2009 7 B
Calculate the maximum throughput of the link layer service pro- vided by an Ethernet operating at 10 Mbps, assuming an inter frame gap of 12 bytes. Also calculate the channel utilization. The sizes of the various frame parts are as follows: MAC preamble = 7 bytes ... 6 bytes Source address = 6 bytes Length of frame = 2 bytes Check sequence = 4 bytes Payload = 1212 bytes (maximum)

asked 19 hours ago in Computer Networks by kapilkant yadav (33 points) | 12 views

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3

How many times the average message would be transmitted ?

asked 21 hours ago in Computer Networks by radha gogia Loyal (6.9k points) | 13 views

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4

isi pcb 2106
[closed]

asked 21 hours ago in Computer Networks by Ajeet Singh (79 points) | 17 views

+1 vote

1 answer

5

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 23 hours ago in Computer Networks by kapilkant yadav (33 points) | 16 views

+1 vote

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6

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

asked 1 day ago in Computer Networks by radha gogia Loyal (6.9k points) | 25 views

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1 answer

7

UGC NET 2013
In the _______method , after the station finds the line idle , it sends or refrains from sending based on probability a)None-Persistent b)One -Persistent c) P-Persistent d)Non-Persistent

asked 3 days ago in Computer Networks by namankumar (13 points) | 21 views

+1 vote

2 answers

8

subnetting
is 255.255.255.52 a valid subnet mask? if yes then what is the no. of subnets?

asked 4 days ago in Computer Networks by vaibhav singh 3 (27 points) | 46 views

+1 vote

1 answer

9

Made easy workbook
An IP router implementing CIDR services a packet with address 131.23.151.76.The routers routing table has the following entries Prefix. Output interface identifier 131.16.0.0/12 3 131.16.0.0/14 5 131.19.0.0/16 2 131.22.0.0/15 1 The identifier of the output interface on which this packet will be forwarded is,.,........

asked 6 days ago in Computer Networks by Avik Chowdhury Junior (539 points) | 33 views

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1 answer

10

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) | 40 views

+1 vote

2 answers

11

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

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2 answers

12

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

13

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) | 31 views

+1 vote

1 answer

14

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) | 18 views

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15

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) [closed]

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

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16

Please tell me the topics that i have to cover in #tcp/udp and #congestion_control in computer networks for gate 2019.

asked Apr 8 in Computer Networks by Satbir (91 points) | 15 views

+1 vote

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17

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) | 70 views

+2 votes

3 answers

18

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) | 131 views

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0 answers

19

asked Apr 4 in Computer Networks by shivanisrivarshini Boss (14k points) | 30 views

+1 vote

1 answer

20

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) | 124 views

+1 vote

0 answers

21

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$ $245.248.136.0/24 \text{ and } 245.248.132.0/21$ [closed]

asked Mar 31 in Computer Networks by Ahsanul Hoque (163 points) | 61 views

–1 vote

0 answers

22

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

23

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) | 110 views

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1 answer

24

Computer networks
How it is possible for computer to have multiple ip address at different instance of time?

asked Mar 27 in Computer Networks by Anuranjan Chauhan (261 points) | 52 views

+1 vote

1 answer

25

Computer Networks
Why CRC is added at the end of frame?

asked Mar 25 in Computer Networks by Anuranjan Chauhan (261 points) | 107 views

+1 vote

2 answers

26

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

27

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) | 130 views

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0 answers

28

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) | 81 views

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0 answers

29

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 (1.4k points) | 92 views

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1 answer

30

Carrier-sense multiple access (CSMA)
after a series of collision a station ha selected slot 984. in how many successive collisions, the station was a part of communication?

asked Mar 17 in Computer Networks by annusingh519 (7 points) | 66 views

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