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Identify the true statements
I. Maintaining connection semantics between two directly connected nodes is done by network layer.
II. Recovering lost packet between two directly connected nodes is done by transport layer.
III. Recovering lost packets between two nodes separated by multiple hops is done by data link control.
IV. Arbitration is done between multiple nodes attached to a single medium to resolve conflicts.
- a)Only I and IV
- b)Only I and II
- c)Only III and IV
- d)Only II and III
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Identify the true statementsI. Maintaining connection semantics betwee...
The correct statement are.
1. Recovering lost packet between two directly connected nodes is done by data link layer.
2. Recovering lost packet between two nodes separated by multiple hops is done by transport layer.
Most Upvoted Answer
Identify the true statementsI. Maintaining connection semantics betwee...
Understanding the Statements
To evaluate the correctness of the statements, we need to understand the functions of different layers in the OSI model.
Statement I: Network Layer Responsibilities
- The network layer is primarily responsible for routing and forwarding packets, not for maintaining connection semantics.
- Conclusion: False.
Statement II: Transport Layer Recovery
- The transport layer is indeed responsible for ensuring reliable communication. It handles lost packets through mechanisms like acknowledgments and retransmissions.
- Conclusion: True.
Statement III: Data Link Control Responsibilities
- Data link control handles error detection and correction between directly connected nodes but does not manage recovery for packets over multiple hops. This is a function of the transport layer, not data link control.
- Conclusion: False.
Statement IV: Arbitration in Networks
- Arbitration is essential in networks where multiple nodes share the same communication medium. Protocols like CSMA/CD manage access and resolve conflicts among nodes.
- Conclusion: True.
Final Evaluation
- Only statements II and IV are true.
- Therefore, the correct answer is option 'D', which states that recovering lost packets between two directly connected nodes is done by the transport layer, and arbitration is performed between multiple nodes on a single medium.
This breakdown clarifies the responsibilities of each layer, validating why options I and III are incorrect.
To evaluate the correctness of the statements, we need to understand the functions of different layers in the OSI model.
Statement I: Network Layer Responsibilities
- The network layer is primarily responsible for routing and forwarding packets, not for maintaining connection semantics.
- Conclusion: False.
Statement II: Transport Layer Recovery
- The transport layer is indeed responsible for ensuring reliable communication. It handles lost packets through mechanisms like acknowledgments and retransmissions.
- Conclusion: True.
Statement III: Data Link Control Responsibilities
- Data link control handles error detection and correction between directly connected nodes but does not manage recovery for packets over multiple hops. This is a function of the transport layer, not data link control.
- Conclusion: False.
Statement IV: Arbitration in Networks
- Arbitration is essential in networks where multiple nodes share the same communication medium. Protocols like CSMA/CD manage access and resolve conflicts among nodes.
- Conclusion: True.
Final Evaluation
- Only statements II and IV are true.
- Therefore, the correct answer is option 'D', which states that recovering lost packets between two directly connected nodes is done by the transport layer, and arbitration is performed between multiple nodes on a single medium.
This breakdown clarifies the responsibilities of each layer, validating why options I and III are incorrect.
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Identify the true statementsI. Maintaining connection semantics between two directly connected nodes is done by network layer.II. Recovering lost packet between two directly connected nodes is done by transport layer.III. Recovering lost packets between two nodes separated by multiple hops is done by data link control.IV. Arbitration is done between multiple nodes attached to a single medium to resolve conflicts.a)Only I and IVb)Only I and IIc)Only III and IVd)Only II and IIICorrect answer is option 'D'. Can you explain this answer?
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ample number of questions to practice Identify the true statementsI. Maintaining connection semantics between two directly connected nodes is done by network layer.II. Recovering lost packet between two directly connected nodes is done by transport layer.III. Recovering lost packets between two nodes separated by multiple hops is done by data link control.IV. Arbitration is done between multiple nodes attached to a single medium to resolve conflicts.a)Only I and IVb)Only I and IIc)Only III and IVd)Only II and IIICorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice GATE tests.
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