Recent questions tagged network-layering

+1 vote

2 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?

asked Apr 9 in Computer Networks by ajaysoni1924 Boss (10.5k points) | 144 views

+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?

asked Apr 9 in Computer Networks by ajaysoni1924 Boss (10.5k points) | 73 views

0 votes

1 answer

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?

asked Apr 9 in Computer Networks by ajaysoni1924 Boss (10.5k points) | 50 views

0 votes

0 answers

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?

asked Apr 9 in Computer Networks by ajaysoni1924 Boss (10.5k points) | 21 views

+13 votes

4 answers

5

GATE2018-13
Match the following: ... $\text{P-II, Q-I, R-IV, S-III}$ $\text{P-IV, Q-I, R-II, S-III}$ $\text{P-IV, Q-I, R-III, S-II}$

asked Feb 14, 2018 in Computer Networks by gatecse Boss (16.6k points) | 2.3k 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 ?

asked Feb 10, 2018 in Computer Networks by Arunav Khare Loyal (5.5k points) | 310 views

+3 votes

3 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

asked Dec 29, 2017 in Computer Networks by rahul sharma 5 Boss (25.2k points) | 202 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.

asked Dec 18, 2017 in Computer Networks by Chhotu Boss (13.1k points) | 191 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: $(C) i - d, ii - c, iii - b, iv - a$

asked Nov 12, 2017 in Computer Networks by Na462 Loyal (6.8k points) | 145 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

asked Oct 3, 2017 in Computer Networks by Shubhanshu Boss (18.2k points) | 432 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.

asked Aug 22, 2017 in Computer Networks by Shubhanshu Boss (18.2k points) | 535 views

+4 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.

asked Aug 19, 2017 in Computer Networks by Shubhanshu Boss (18.2k points) | 633 views

+3 votes

1 answer

13

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

asked Jul 6, 2017 in Computer Networks by Nitesh Choudhary Active (2.4k points) | 525 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?

asked Apr 7, 2017 in Computer Networks by anonymous | 846 views

+2 votes

1 answer

15

CN:Routing Table using RIP Protocol

asked Apr 6, 2017 in Computer Networks by LavTheRawkstar Active (3.7k points) | 264 views

+2 votes

2 answers

16

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

asked Jan 27, 2017 in Computer Networks by Ramakrishna Junior (721 points) | 377 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)

asked Jan 14, 2017 in Computer Networks by smartmeet Active (4.8k points) | 556 views

0 votes

1 answer

18

MadeEasy Subject Test: Computer Networks - Network Layering

asked Jan 9, 2017 in Computer Networks by debanjan sarkar Active (3.8k points) | 157 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?

asked Dec 31, 2016 in Computer Networks by yg92 Active (3.1k points) | 937 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 ?

asked Aug 30, 2016 in Computer Networks by dd Veteran (56.9k points) | 495 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?

asked Aug 4, 2016 in Computer Networks by DrMhmd (43 points) | 247 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

asked Jul 29, 2016 in Computer Networks by jothee Veteran (104k points) | 1k views

+3 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

asked Jul 8, 2016 in Computer Networks by jothee Veteran (104k points) | 1.2k views

+3 votes

2 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

asked Jul 5, 2016 in Computer Networks by jothee Veteran (104k points) | 3k 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)

asked Jul 4, 2016 in Computer Networks by jothee Veteran (104k points) | 1.2k views

+1 vote

3 answers

26

gateforum

asked Jun 28, 2016 in Computer Networks by Shivani Jaiswal (171 points) | 554 views

+14 votes

4 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

asked Jun 20, 2016 in Computer Networks by jothee Veteran (104k points) | 4.3k 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

asked Jun 15, 2016 in Computer Networks by Don't you worry Active (1.4k points) | 1.6k views

+7 votes

5 answers

29

ISRO2007-75
When a host on network A sends a message to a host on network B, which address does the router look at? Port IP Physical Subnet mask

asked Jun 10, 2016 in Computer Networks by jothee Veteran (104k points) | 3.5k views

+3 votes

2 answers

30

UGCNET-June2014-II-05
Match the following : List - I List - II a. Physical layer i. Allow resources to network access b. Datalink layer ii. Move packets from one destination to other c. Network layer iii. Process to process message delivery d. Transport layer iv. Transmission of bit stream e. Application Layer v. Formation of ... ; d-ii; e-iii a-i; b-iii; c-ii; d-v; e-iv a-i; b-ii; c-iv; d-iii; e-v

asked Jun 8, 2016 in Computer Networks by makhdoom ghaya Boss (29.9k points) | 983 views

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