Recent questions tagged network-layering

5 votes

4 answers

1

Kurose and Ross Edition 6 Exercise 1 Question R25 (Page No 70)
Which layers in the Internet protocol stack does a router process? Which layers does a link-layer switch process? Which layers do a host process?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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1 vote

2 answers

2

Kurose and Ross Edition 6 Exercise 1 Question R24 (Page No 70)
What is an application-layer message? A transport-layer segment? A network-layer datagram? A link-layer frame?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

476 views

1 vote

2 answers

3

Kurose and Ross Edition 6 Exercise 1 Question R23 (Page No 70)
What are the five layers in the Internet protocol stack? What are the principal responsibilities of each of these layers?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

379 views

0 votes

1 answer

4

Kurose and Ross Edition 6 Exercise 1 Question R22 (Page No 70)
List five tasks that a layer can perform. Is it possible that one (or more) of these tasks could be performed by two (or more) layers?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

420 views

21 votes

5 answers

5

GATE CSE 2018 | Question: 13
Match the following: ... $\text{P-IV, Q-I, R-II, S-III}$ $\text{P-IV, Q-I, R-III, S-II}$

gatecse asked in Computer Networks Feb 14, 2018

6.2k views

2 votes

2 answers

6

OSI Model
Network layer is used when data is to be delivered across network. So, for delivering within a network, there is no need for network layer (Ref: Pg-49, Computer Networks, Forouzan, 2 Edition). So in that case will Transport layer directly communicate with Data Link layer ? Or will Network layer be in picture, but do nothing other than simply passing data to Transport layer ?

Arunav Khare asked in Computer Networks Feb 10, 2018

by Arunav Khare

756 views

5 votes

4 answers

7

MadeEasy Test Series: Computer Networks - Network Layering
Consider the following statements with respect to application layer: S1 : Datagram is the PDU (Protocol data unit) used. S2 : There is a fixed limit on the maximum size of data that it can pass on the TCP layer. Which of the following options is ... A Only S1 is true B Only S2 is true C Both S1 and S2 are true D Neither of S1 or S2 is true

rahul sharma 5 asked in Computer Networks Dec 29, 2017

by rahul sharma 5

875 views

0 votes

0 answers

8

Essential and Optional functionality of each layer in TCP/IP 7-Layer model
Hi Guys, Can anyone please list Essential and Optional functionality of each layer in TCP/IP 7-Layer model ? If some functionality is optional then which other layer/layers could handle that functionality.

Chhotu asked in Computer Networks Dec 18, 2017

by Chhotu

306 views

1 vote

0 answers

9

Virtual Gate Test Series: Computer Networks - Layers
Match the following layers with their functionality. i. Encryption a. Data-Link Layer ii. Maintaining Synchronization Points b. Network Layer iii. Feedback Messages c. Session Layer iv. Physical Addressing System d. Presentation Layer How Maintain synchronization points is ... session layer? Correct option: $(C) i - d, ii - c, iii - b, iv - a$

Na462 asked in Computer Networks Nov 12, 2017

by Na462

315 views

1 vote

1 answer

10

Border Gateway Protocol
Why BGP is an application layer Protocol? Ref :- https://en.wikipedia.org/wiki/Border_Gateway_Protocol

Shubhanshu asked in Computer Networks Oct 3, 2017

952 views

5 votes

1 answer

11

Fragmentation
Which of the following statements is/ are true about the fragmentation which is done at network layer. (I) The offset of 1st fragment is always offset of parent. (II) The MF of last fragment is always same MF of parent. I think I is true and II is false: Explanation for II :- Host A ... MF = 1 packet 1.3 <20,40> MF = 0 packet 1.3's MF != MF of packet 1 In A-R1. is it correct.

Shubhanshu asked in Computer Networks Aug 22, 2017

3.1k views

5 votes

2 answers

12

Fragmentation
Suppose a network:- Suppose a TCP message contains 492 B of data and TCP header is of size 20B then deliver it to IP. IP header is 20 B. Assume link A-R1 has the maximum frame size of 700 B including a frame size of 14 B, link R1-R2 can support a ... of 256 B including a 12 B frame header. Then calculate the no of fragments at each link and show the format of fragments in each link.

Shubhanshu asked in Computer Networks Aug 19, 2017

1.4k views

4 votes

1 answer

13

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

Nitesh Choudhary asked in Computer Networks Jul 6, 2017

by Nitesh Choudhary

1.2k views

6 votes

3 answers

14

Tanenbaum
A datagram network allows routers to drop packets whenever they need to. The probability of a router discarding a packet is p. Consider the case of a source host connected to the source router, which is connected to the destination router, and then to the destination ... of (a) hops a packet makes per transmission? (b) transmissions a packet makes? (c) hops required per received packet?

anonymous asked in Computer Networks Apr 7, 2017

by anonymous

2.7k views

2 votes

1 answer

15

CN:Routing Table using RIP Protocol

LavTheRawkstar asked in Computer Networks Apr 6, 2017

by LavTheRawkstar

608 views

3 votes

2 answers

16

Routing Tables Network Layer
Please tell me which interface will be selected for the above IP address

Ramakrishna asked in Computer Networks Jan 27, 2017

615 views

3 votes

1 answer

17

Which device have Exactly one i/p address? (Work Station,Router,Gateway can have more than one i/p)

smartmeet asked in Computer Networks Jan 14, 2017

864 views

0 votes

1 answer

18

MadeEasy Subject Test: Computer Networks - Network Layering

debanjan sarkar asked in Computer Networks Jan 9, 2017

by debanjan sarkar

288 views

6 votes

2 answers

19

Fragmentation Ipv4-Ipv6
True or false - 1. In Ipv4 fragmentation can be done both at Source and intermediate routers. 2. In Ipv6 fragmentation can be done only at Source and not intermediate routers. 3. In both IPv6/4 reassembly is done only at the destination. 4. ... fragmentation done at the Source in Ipv4? Should the 1) be false since segmentation is done and hence fragmentation can be avoided?

yg92 asked in Computer Networks Dec 31, 2016

by yg92

1.8k views

4 votes

2 answers

20

Fragmentation and Total length field value
In this question, After fragmenting at Network2, what will be the total length field values of the 4 fragmented IP packets ?

dd asked in Computer Networks Aug 30, 2016

by dd

782 views

1 vote

0 answers

21

Transfering Data and Transmitter Power, is there any idea?
We have one 1-MB file that in 1second moved from 1Mhz channel with 60db Attenuation. if the density of power to noise be -174 dBm/Hz, the transmitter power is equal to 1Micro Watt. My question is how this value be calculated? any idea?

DrMhmd asked in Computer Networks Aug 4, 2016

by DrMhmd

325 views

7 votes

1 answer

22

UGCNET-Dec2013-III: 45
Which layer of OSI reference model is responsible for decomposition of messages and generation of sequence numbers to ensure correct re-composition from end to end of the network? Physical Data-link Transport Application

jothee asked in Computer Networks Jul 29, 2016

by jothee

2.2k views

4 votes

2 answers

23

UGCNET-Dec2012-II: 17
The design issue of Datalink layer in OSI Reference Model is Framing Representation of bits Synchronization of bits Connection control

jothee asked in Computer Networks Jul 8, 2016

by jothee

4.8k views

3 votes

3 answers

24

UGCNET-June2012-II: 15
Decryption and encryption of data are responsibility of which of the following layer? Physical layer Data link layer Presentation layer Session layer

jothee asked in Computer Networks Jul 5, 2016

by jothee

8.2k views

4 votes

4 answers

25

UGCNET-June2012-II: 6
Both hosts and routers and TCP/IP protocol software. However, routers do not use protocol from all layers. The layer for which the protocol software is not needed by a router is Layer – 5 (Application) Layer – 1 (Physical) Layer – 3 (Internet) Layer – 4 (Network Interface)

jothee asked in Computer Networks Jul 4, 2016

by jothee

2.3k views

2 votes

2 answers

26

Shivani Jaiswal asked in Computer Networks Jun 28, 2016

by Shivani Jaiswal

734 views

16 votes

3 answers

27

ISRO2015-58
Which layers of the OSI reference model are host-to-host layers? Transport, session, presentation, application Session, presentation, application Datalink, transport, presentation, application Physical, datalink, network, transport

jothee asked in Computer Networks Jun 20, 2016

by jothee

7.6k views

5 votes

4 answers

28

At which layer of OSI Model does a router work?
A .Presentation Layer B .Transport Layer C .Network Layer D .Datalink Layer E .Application Layer F .Physical Layer G .Session Layer

Don't you worry asked in Computer Networks Jun 15, 2016

by Don't you worry

2.9k views

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