Dark Mode

Recent questions tagged data-link-layer

0 votes

1 answer

1

Computer Networks - Andrew Tanenbaum - The Data Link Layer
Consider a bidirectional link that uses Selective Repeat ARQ with a window size of N = 7. Suppose that all frames are one unit long and use a time-out value of 2. Assume that the one-way propagation delay is 0.5 time unit, the ... A sends 8 frame in a row, starting at t = 0. All frames are received correctly, except frame 3 is lost.

suenolivia asked in Computer Networks Feb 27

132 views

0 votes

1 answer

2

TestBook Website
Assume that host A and host C are connected through intermediate bridge and router labeled B and R respectively. Determine how many times each frame has to visit the network layer, data link layer and physical layer during a transmission from A to C. 1 Network Layer - 4, Data ... 3, Data Link Layer - 3, Physical Layer - 4 4 Network Layer - 4, Data Link Layer - 4, Physical Layer - 5

Sahil_Lather asked in Computer Networks Jan 26

by Sahil_Lather

78 views

0 votes

0 answers

3

Gatezeal test series 2023
A network with bandwidth of 10 Mbps (10^7bps) can pass only an average of 12000 frames per minute with each frame carrying an average of 10000 bits .what is the throughput of this networK

Vaishnavi Gadhe asked in Computer Networks Nov 6, 2022

by Vaishnavi Gadhe

174 views

0 votes

1 answer

4

Self Doubt.
Can anyone please explain this?

Nisha Bharti asked in Computer Networks Sep 22, 2022

by Nisha Bharti

238 views

0 votes

2 answers

5

Self Doubt
What is the difference between Node-to-node delivery, Host-to-host delivery & Process-to-process delivery?

Nisha Bharti asked in Computer Networks Sep 14, 2022

by Nisha Bharti

173 views

0 votes

0 answers

6

Self Doubt
To finding maximum efficiency of ALOHA protocol or CSMA/CD protocol, why double differentiation is used?

Nisha Bharti asked in Computer Networks Sep 11, 2022

by Nisha Bharti

105 views

1 vote

0 answers

7

igate booklate question
what is the character count method which is used for framing, in data link layer ? consider the string 5,4,3,2,5,6,7,8,9,3,2,4,1,2,3 in DLL character count method is used for framing,above msg can be divide in how many frame?

jugnu1337 asked in Computer Networks Aug 25, 2022

99 views

0 votes

1 answer

8

Best Open Video Playlist for Data link layer:Ethernet bridging Topic | Computer Networks
Please list out the best free available video playlist for Data link layer:Ethernet bridging from Computer Networks as an answer here (only one playlist per answer). We'll then select the best playlist and add ... ones are more likely to be selected as best. For the full list of selected videos please see here

makhdoom ghaya asked in Study Resources Aug 24, 2022

by makhdoom ghaya

52 views

0 votes

0 answers

9

Best Open Video Playlist for Data link layer:Medium Access Control Topic | Computer Networks
Please list out the best free available video playlist for Data link layer:Medium Access Control from Computer Networks as an answer here (only one playlist per answer). We'll then select the best playlist and ... are more likely to be selected as best. For the full list of selected videos please see here

makhdoom ghaya asked in Study Resources Aug 24, 2022

by makhdoom ghaya

30 views

1 vote

1 answer

10

Practice Question | Unacademy
Consider the following statements (I) The two main function of data link layer are data link control and media access control (II) DLL guarantees reliable delivery of packets, hence no acknowledgements required. [A] Only I is true [B] Only II is true [C] Both are true [D] None Please explain your choice.

anupamsworld asked in Computer Networks Jun 12, 2022

by anupamsworld

191 views

0 votes

1 answer

11

Relation b/w data link layer of TCP/IP model and Ethernet protocal
Hii Everyone, I’m bit confuse b/w the functionalities of data link layer protocals (Framming,flow control ) and ethernet protocal Framming and flow control. Can anyone please clear my doubt Thanks.

lalitver10 asked in Computer Networks Feb 28, 2022

198 views

1 vote

1 answer

12

Made Easy Test Series
The round trip delay between A and B is given as 60 ms, and the bottleneck bandwidth of the link between A and B is 512 KBps. What is the optimal window size (in packets) if the packet size is 64 bytes and the channel is full duplex.

LRU asked in Computer Networks Jan 20, 2022

by LRU

319 views

1 vote

3 answers

13

Applied Mock Test
Host A is connected to host B with a 100 Mbps link that has a 200 ms one-way latency and transmission delay of 10 sec. How much data can A send to B before B’s first acknowledgement reaches A?

LRU asked in Computer Networks Dec 28, 2021

by LRU

317 views

5 votes

1 answer

14

Applied Test Series
Suppose you want to transfer a file from Hyderabad to Bangalore. The size of file is 90,000 bytes. The file will be transferred in 1,500-byte data packets, for which 40 bytes are taken up with headers. The size of acknowledgement packets is 40 ... receives the entire data packet.Assume no packet loss. With Stop-and-Wait, how long will it take to transfer the file successfully?

LRU asked in Computer Networks Oct 23, 2021

by LRU

650 views

0 votes

1 answer

15

Applied Test Series
In the CSMA/CD network the bandwidth of the link is 10 Mbps, two stations are connected at both the ends of the link. The speed of the transmission on the links is 5 x 10 ^6 m/sec. What is the length of the link in kilometre, if the minimum frame size is 500 bytes ?

LRU asked in Computer Networks Oct 21, 2021

by LRU

260 views

0 votes

0 answers

16

Applied Test Series
How big would the window size have to be for the channel utilization to be greater than 98 percent and the bandwidth is 1 Gbps? Suppose that the size of a packet is 1,500 bytes, including both header fields and data. The one way propagation delay is 15 milliseconds for the channel ?

LRU asked in Computer Networks Oct 21, 2021

by LRU

213 views

0 votes

2 answers

17

Applied Test Series
A link has a transmission speed of 500 × 10^6 bpsec. Assume acknowledgment has negligible transmission delay, and it's one way propagation delay is 2 sec. Also assumes that the processing delays at nodes are also negligible. If data packet size is 107 bits, then the efficiency of Go-Back-7 protocol is _______ (in %) [Correct upto two places of decimals].

LRU asked in Computer Networks Oct 13, 2021

by LRU

429 views

0 votes

2 answers

18

Applied Test Series
In the GO back N ARQ sender is sending the 20 packets to the destination with a window size of 4. Every sixth packet is lost and after a packet loss sender is sending one dummy packet outside the window for ensuring everything is correct [ dummy packet is an outside packet not the part of the window]. How many number of transmissions will be there?

LRU asked in Computer Networks Oct 13, 2021

by LRU

588 views

1 vote

1 answer

19

Applied Test Series
Two systems are connected with the link and link is having a bandwidth of 20 Mbps. Assume the distance between them is 2400 km and the size of the packet is 2 KB with propagation speed is the same as the speed of light. What is the minimum number of bits required for the window to achieve 100% utilization in selective repeat protocol?

LRU asked in Computer Networks Oct 13, 2021

by LRU

368 views

1 vote

1 answer

20

Applied Test Series
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for the network if the speed is 4 * 10 ^4 m/sec ?

LRU asked in Computer Networks Oct 13, 2021

by LRU

680 views

1 vote

1 answer

21

Applied Test Series
Consider a selective repeat sliding window protocol, the window size of the sender is 128. What will be the sequence number for the 800th frame? [ Assume the available sequence number are the minimum required for window size of 128]

LRU asked in Computer Networks Oct 7, 2021

by LRU

260 views

1 vote

1 answer

22

Applied Test Series
Consider source and destination in a 10 Mbps network with sender window has 5 packets. Transmission delay for a packet is 10 micro-sec. Propagation delay from source to destination is 250 micro-sec. How long is the sender idle once a window is transmitted before starting the second window? Assume ACK transmission time is negligible.

LRU asked in Computer Networks Oct 4, 2021

by LRU

156 views

0 votes

1 answer

23

Applied Test Series
How big would the window size have to be for the channel utilization to be greater than 98 percent and the bandwidth is 1 Gbps? Suppose that the size of a packet is 1,500 bytes, including both header fields and data. The one way propagation delay is 15 milliseconds for the channel ?

LRU asked in Computer Networks Oct 4, 2021

by LRU

615 views

2 votes

1 answer

24

ISI2018-PCB-CS9
The data link layer uses a fixed-size sliding window protocol, where the window size for the connection is equal to twice the bandwidth-delay product of the network path. Consider the following three scenarios, in each of which only the given parameter changes as specified (no ... minimum value of the round trip time $R$ increases to $1.8R$; the window size $W$ decreases to $W/3$

akash.dinkar12 asked in Computer Networks May 12, 2019

by akash.dinkar12

752 views

0 votes

1 answer

25

Kurose and Ross Edition 6 Exercise 1 Question P28 (Page No 76)
Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is $2.5 10^8$meters/sec. How long does it take to send the file ... the preceding one is acknowledged. How long does it take to send the file? Compare the results from (a) and (b).

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

436 views

0 votes

0 answers

26

Kurose and Ross Edition 6 Exercise 1 Question P29 (Page No 76)
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of ... the size of the photo. What is the minimum value of x for the microwave link to be continuously transmitting?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

1.1k views

0 votes

1 answer

27

Kurose and Ross Edition 6 Exercise 1 Question P6 (Page No 72)
This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, ... bits, and R = 56 kbps. Find the distance mso that $d _{prop}$ equals $d _{trans}$.

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

2.9k views

1 vote

1 answer

28

Andrew S. Tanenbaum Edition 5th Exercise 5 Question 6 (Page No. 490)
Consider the network of Figure. Distance vector routing is used, and the following vectors have just come in to router C: from B: (5, 0, 8, 12, 6, 2); from D: (16, 12, 6, 0, 9, 10); and from E: (7, 6, 3, 9, 0 ... , and E, are 6, 3, and 5, respectively. What is C's new routing table? Give both the outgoing line to use and the cost.

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

5.5k views

0 votes

0 answers

29

Andrew S. Tanenbaum Edition 5th Exercise 3 Question 39 (Page No. 255)
The goal of this lab exercise is to implement an error-detection mechanism using the standard CRC algorithm described in the text. Write two programs, generator and verifier. The generator program reads from standard input a ... correct, but by typing generator <file | alter arg | verifier you should get the error message.

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

417 views

Page:

1
2
3
next »

Recent questions tagged data-link-layer