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Recent questions tagged osi-model

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3
what is baud rate exactly? and what does it signifies?
asked Nov 5, 2018 in Computer Networks aditi19 97 views
0 votes
1 answer
4
Except reliability and connection oriented what are the other functionalities which are produced by TCP but not by UDP?
asked Aug 10, 2018 in Computer Networks soumayan bandhu 96 views
0 votes
1 answer
5
What is the difference between host to host network connection and end to end network connection? Why host to host connection for network layer and end to end connection for transport layer?
asked Aug 10, 2018 in Computer Networks soumayan bandhu 86 views
1 vote
2 answers
6
Encode / Decode data for physical transmission is done by which layer of OSI reference model?
asked Mar 24, 2018 in Computer Networks hacker16 650 views
1 vote
2 answers
7
Do all the TCP segments travel through same path once the connection is established ?
asked Feb 12, 2018 in Computer Networks Arunav Khare 166 views
2 votes
2 answers
8
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 Arunav Khare 507 views
2 votes
0 answers
9
What is meant by the statement "ICMP works at Network Layer"? In general, what is meant by the statement, "x protocol works at y layer"?
asked Jan 21, 2018 in Computer Networks Parimal Paritosh 62 views
1 vote
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10
Why can a broadcast IP datagram not pass through any router?
asked Jan 21, 2018 in Computer Networks Parimal Paritosh 64 views
1 vote
0 answers
11
What is the difference between broadcasting at Data Link Layer and broadcasting at Network Layer? Broadcasting at Data Link Layer is done via MAC address FF:FF:FF:FF:FF:FF while broadcasting at Network Layer is done using broadcast IP address 255.255.255.255 but they essentially do the same thing, sending a packet to every other node in the network.
asked Jan 19, 2018 in Computer Networks Parimal Paritosh 179 views
1 vote
2 answers
12
Bridge is the part of which layer? A. Data link layer B. Transport layer C.Both A And B
asked Jan 15, 2018 in Computer Networks Harikesh Kumar 105 views
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1 answer
13
Which of the following layer of OSI Reference model is also called end-to-end layer ? Network layer Datalink layer Session layer Transport layer
asked Nov 5, 2017 in Unknown Category Arjun 422 views
0 votes
3 answers
14
A conventional $LAN$ bridge specifies only the functions of $OSI$ : layers 1 and 2 layers 1 through 3 all layers none of the above
asked Sep 26, 2017 in Computer Networks rishu_darkshadow 325 views
0 votes
1 answer
15
Assertion (A): Twisted pairs are widely used as transmission medium. Reasoning (R): Twisted pairs have adequate performance and low cost. Both (A) and (R) are true and (R) is the correct explanation for (A) Both (A) and (R) are true but (R) is not the correct explanation (A) is true but (R) is false (A) is false but (R) is true
asked Sep 26, 2017 in Computer Networks rishu_darkshadow 222 views
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3 answers
16
Congestion control is done by : Network layer Physical layer Presentation layer Application layer
asked Sep 26, 2017 in Computer Networks rishu_darkshadow 592 views
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1 answer
17
An example of a layer that is absent in broadcast networks is : Physical layer Presentation layer Network layer Application layer
asked Sep 25, 2017 in Computer Networks rishu_darkshadow 283 views
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1 answer
18
Match the following : LIST-I LIST-II a. Session layer i. Virtual terminal software b. Application layer ii. Semantics of the information transmitted c. Presentation layer iii. Flow control d. Transport layer iv. Manage dialogue control Codes : a b c d iv i ii iii i iv ii iii iv i iii ii iv ii i iii
asked Sep 26, 2016 in Computer Networks makhdoom ghaya 604 views
1 vote
2 answers
19
What services does the internet layer provide ? 1. Quality of service 2. Routing 3. Addressing 4. Connection oriented delivery 5. Framing bits $1, 2, 3$ $2, 3, 4$ $1, 3, 4, 5$ $2, 3, 4, 5$
asked Sep 16, 2016 in Computer Networks makhdoom ghaya 1.2k views
2 votes
1 answer
20
End-to-End connectivity is provided from Last-to-Last in Network layer Session layer Transport layer Data link layer
asked Sep 16, 2016 in Computer Networks makhdoom ghaya 623 views
1 vote
1 answer
21
An analog signal carries 4 bits in each signal unit. If 1000 signal units are sent per second, then baud rate and bit rate of the signal are _____ and _____ 4000 bauds/sec & 1000 bps 2000 bauds/sec & 1000 bps 1000 bauds/sec & 500 bps 1000 bauds/sec & 4000 bps
asked Jul 25, 2016 in Computer Networks jothee 3k views
1 vote
2 answers
22
Encryption and decryption is the responsibility of ____ Layer Physical Network Application Datalink
asked Jul 25, 2016 in Computer Networks jothee 801 views
1 vote
1 answer
23
When data and acknowledgement are sent in same frame, this is called as Piggy packing Piggy backing Back packing Good packing
asked Jul 25, 2016 in Computer Networks jothee 1.2k views
1 vote
1 answer
24
Match the following a. Data link layer i. Flow control b. Network layer ii. Node to node delivery c. Transport later iii. Mail services d. Application layer iv. Routing a b c d A ii i iv iii B ii iv i iii C ii i iii iv D ii iv iii i
asked Jul 16, 2016 in Computer Networks jothee 745 views
2 votes
2 answers
25
Which layers of the OSI reference model are host-to-host layers ? Transport, Session, Presentation, Application Network, Transport, Session, Presentation Data-link, Network, Transport, Session Physical, Data-link, Network, Transport
asked Jul 12, 2016 in Computer Networks makhdoom ghaya 770 views
1 vote
2 answers
26
Data Encryption Techniques are particularly used for _____ protecting data in Data Communication System reduce Storage Space Requirement enhances Data Integrity decreases Data Integrity
asked Jul 11, 2016 in Computer Networks jothee 982 views
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