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1

Aloha | Computer Networks
Consider a network uses the slotted ALOHA medium access control protocol and network have 5 active nodes. Assume, each node attempts to transmit a frame in each slot with probability 0.2 and this frame can be new or old collided frame. The probability of ... of a frame from any node in a given slot is (Rounded off upto two decimal places) Ans : 0.4096 Please Explain

abhinowKatore asked in Computer Networks Dec 29, 2022

by abhinowKatore

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2

MadeEasy Full Length Test 2019: Computer Networks - Network Flow
Suppose that how A is connected to a router R1, R1 is connected to another router R2 and R2 Is connected to how B. Suppose that a TCP message that contains 900 byes of data and 20 bytes of TCP header Is passed to ... about Total length, OF MF and Fragment offset fields of the header In the last packet transmitted over the link R1-R2

jatin khachane 1 asked in Computer Networks Jan 12, 2019

by jatin khachane 1

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3

Zeal online test series
When we use ipv6 and ipv4 together with the help of tunneling. So if the source set the hop count so will tunnel decrement the hop count. And if tunnel decrement it so wheater it decrement at both start and end of tunnel. Suppose source set hop limit to 16 and there are 2 router and tunnel on the path. So what will be the hop count after received by receiver.

Ayan21 asked in Computer Networks Jan 8, 2019

by Ayan21

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4

MadeEasy Test Series: Computer Networks - Mac Protocol
Consider the network with 8 nodes running the carrier sense multiple access MAC protocol. The maximum data rate of the network is 10 Mbps. Each node sends traffic according to some unknown random process at an average rate of 1 Mbps ... a collision are ________ in % (up to 2 decimal places) [Assume no packet dropped except collied packets].

Sandy Sharma asked in Computer Networks Jan 6, 2019

by Sandy Sharma

242 views

2 votes

2 answers

5

# CN TCP connection establishment doubt about MSS
Say Client buffer is of 12000 Bytes and MSS is 1200 B and this info is sent to server and now server send the info in (SYN +ACK) segment as Server Buffer = 18000 B and MSS is 600 B Now in data transfer phase does both Client and ... 1200, 600) = 600 Bytes? Or does the sever will send 1200 Bytes segments to C and C sends 600 B segments to server?

iarnav asked in Computer Networks Dec 16, 2018

by iarnav

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6

self doubt
i understand that distance vector routing is adaptive but what about link state routing is it adaptive??

CHïntän ÞäTël asked in Computer Networks Nov 26, 2018

by CHïntän ÞäTël

283 views

1 vote

0 answers

7

Supernetting
I have doubt that how to merge the ip addresses into single one using Aggregation. Please discuss the approach Like I have ip addresses 192.24.0.0/21,192.24.16.0/20,192.24.8.0/22 It's merged into single one ip 192.24.0.0/19 How, I am little confused with the approach help me out here :)

Na462 asked in Computer Networks Aug 1, 2018

by Na462

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1 answer

8

Computer Network Kuros and Ross
Please explain P8 in detail.

Shubham Kumar Gupta asked in Computer Networks May 18, 2018

by Shubham Kumar Gupta

309 views

3 votes

1 answer

9

Maximum Segment Size (MSS in TCP) vs Maximum Transmissible Unit (MTU in Data Link)
It is known that any network can only transmit data packet size equal to (or less than) MTU allowed in the network. If that is the case, and if we have a Path MTU discovery in place, why is ... ) than MTU, will only burden Network Layer with fragmentation overhead. Is there any significant advantage of using MSS ?

Arunav Khare asked in Computer Networks Feb 6, 2018

by Arunav Khare

874 views

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1 answer

10

Question on SWP
Please Explain.

Shubham Kumar Gupta asked in Computer Networks Jan 29, 2018

by Shubham Kumar Gupta

437 views

1 vote

0 answers

11

computer networks
Why can a broadcast IP datagram not pass through any router?

Parimal Paritosh asked in Computer Networks Jan 21, 2018

by Parimal Paritosh

185 views

1 vote

2 answers

12

[MadeEasy] the routing table of D in DVR Routing Algorithm / Tables
For a given network below, the routing tables of four nodes A, B, E and G are shown. Suppose that D has estimated its delay to its neighbors A, B, E and G as 3, 1, 1 and 1 msec respectively and updates its routing table using distance vector routing technique: the routing table of D is

techbrk3 asked in Computer Networks Jan 5, 2018

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2 votes

2 answers

13

Computer Networks
Consider a network system consisting of three networks connected with two routers. Network-A has MTU of 1500 bytes, Network-B has MTU of 620 bytes, Network-C has MTU of 1500 bytes (MTU includes header size). Station-1 needs to send a segment of1380 bytes. The Total size of the packets received at Network-C is _________ bytes if the header size is 20 B.

targate2018 asked in Computer Networks Nov 5, 2017

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14

Computer Networks - Congestion Control
Consider the effect of using slow start on a line with 10 msec round trip time. The receiver window and the size of congestion window are set to 38 KB and 36 KB respectively. Sender side threshold is set to 18 KB. After 8 transmission a time- ... first full window of 18 KB is____________ (in msec). Assume window size at the start of slow start phase is 2 KB.

targate2018 asked in Computer Networks Nov 5, 2017

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1 answer

15

ace test series 2018

rohit vishkarma asked in Computer Networks Oct 31, 2017

by rohit vishkarma

325 views

2 votes

1 answer

16

computer networks
difference between circuit switching and virtual circuit switching ? do we have icmp in syllabus ?

Vicky rix asked in Computer Networks Oct 20, 2017

279 views

2 votes

1 answer

17

Computer Networks: Split horizon with Poisson Reverse Frouzan
As soon as I have studied I got that count to infinity problem will not occur if A advertise its window first to B before B can. As a result B gets information that X is un reachable now, and system will be in stable state. ... horizon. In the line saying: "Node B can still advertise the value for X......." till last line.

Shubhanshu asked in Computer Networks Aug 27, 2017

727 views

3 votes

1 answer

18

Computer Networks Switching
A packet switching network (highly loaded) has the following characteristics: Propagation delay = 2sec/hop Data Transmission rate = 1 Mbps Packet size = r bit = 512 bits Number of hops = 10 At what time the last bit of the last packet will reach the receiver? Answer is 1025sec How is this Question solved?

shaurya uppal asked in Computer Networks Aug 26, 2017

by shaurya uppal

2.3k views

1 vote

1 answer

19

Computer Network: Throughput and Efficiency on SWP
How to calculate window size in Stop and Wait, Select and Repeat, GBN. Some where I have seen window size as w = 1+2a where a = PT/TT. and some where it is calculated as: if we have RTT = 160msec BW = ... follow. And how to calculate Throughput and Efficiency ib all three protocol u can take above configuration to derive result. Please explian it.

Shubhanshu asked in Computer Networks Aug 25, 2017

2.2k views

1 vote

2 answers

20

Computer Networks: Basic doubt in TCP operation
When we have a segment of say 100 bytes and my last ACK number is assume 4000, Now my current sequence number will be (4000-4099) for 100 bytes segment. This is what we generally use a notation. But in one segment we have only one field as sequence number.So how can we specify Range? Ip has length fields in Ipv4/V6/UDP but why not in TCP?

rahul sharma 5 asked in Computer Networks Aug 15, 2017

by rahul sharma 5

463 views

1 vote

1 answer

21

Computer Networks Supernetting
If I need to have a network of 509 hosts using class C,then do i need to join 2 Class c networks or 3? One class C gives us 256-2=254 hosts in case of subnetting.Does the same hold in case of super netting also?Or does in super netting one class c can give 256 hosts?

rahul sharma 5 asked in Computer Networks Aug 9, 2017

by rahul sharma 5

1.2k views

1 vote

3 answers

22

Computer Networks Tanenbaum
A noiseless 4-kHz channel is sampled every 1 msec. What is the maximum data rate? How does the maximum data rate change if the channel is noisy, with a signal-to-noise ratio of 30 dB?

targate2018 asked in Computer Networks Jul 20, 2017

4.1k views

4 votes

1 answer

23

Fragmentation Network layer
I got answer 12 is it Right or wrong

Nitesh Choudhary asked in Computer Networks Jul 6, 2017

by Nitesh Choudhary

2.0k views

2 votes

2 answers

24

computer networks (Pure Aloha)
Let a cluster of stations share 48Kbps of pure Aloha channel. Every station outputs frames of length 1024bits on an average of every 50seconds. Then what is the maximum value of no. of stations?

Nitesh Choudhary asked in Computer Networks Jul 2, 2017

by Nitesh Choudhary

1.3k views

0 votes

2 answers

25

Computer Networks Ethernet
what is the mean of this equation in Ethernet ? Transmission Time >= 2*Propagation Time

Nitesh Choudhary asked in Computer Networks Jun 17, 2017

by Nitesh Choudhary

583 views

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1 answer

26

Computer Network
I know I shouldn't be asking this but still: Window size is 16 bits in TCP so maximum possible value is 2^16=65535 bytes. Why bytes not bits?

Bad_Doctor asked in Computer Networks Jun 12, 2017

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27

computer netwroks
Which are chapters to study for gate 2018 from Forouzan for computer networks?

Bad_Doctor asked in Computer Networks Jun 11, 2017

283 views

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1 answer

28

Computer network MSS and MTU
Are these definations of MSS and MTU correct?? MSS is maximum payload of TCP segment. TCP segment (MSS + TCP header) For IPpacket, it consists of (MSS + TCP header + IP header) And payload of IP packet means (TCPheader + MSS) Ethernet frame ... Also is fragmentation always done at router?? Can it be done by source?? I am really confused about these terms. Plz verify.

Rahul Jain25 asked in Computer Networks Feb 8, 2017

by Rahul Jain25

2.6k views

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1 answer

29

Computer networks colloison domain
What is number of colloision domains in following devices with x-interface??? A) Switch B) Hub C) Router D) Repeater E) Bridge E) Gateway

Rahul Jain25 asked in Computer Networks Feb 7, 2017

by Rahul Jain25

960 views

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1 answer

30

COMPUTER NETWORKS CHANNEL CAPACITY
IS CHANNEL CAPACITY OF FULL DUPLEX LINK= 2*TP*BANDWIDTH AND CHANNEL CAPACITY OF HALF DUPLEX LINK= TP*BANDWIDTH ?? TP=PROPAGATION DELAY. AM I RIGHT??

sushmita asked in Computer Networks Jan 31, 2017

1.9k views

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Recent questions tagged network