Match the following : List – I (Layer) List – II (Function) a. Physical Layer…
2014
Match the following :
List – I (Layer) | List – II (Function) |
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 frames |
Codes :
- A.
a-iv; b-v; c-ii; d-iii; e-i
- B.
a-v; b-iv; c-i; d-ii; e-iii
- C.
a-i; b-iii; c-ii; d-v; e-iv
- D.
a-i; b-ii; c-iv; d-iii; e-v
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Show answer & explanation
Correct answer: A
Correct matches and explanations:
Physical layer — Transmission of bit stream: handles the transmission and reception of raw unstructured bit streams over a physical medium.
Data Link layer — Formation of frames: packages raw bits from the Physical layer into frames and provides error detection and link control.
Network layer — Move packets from one destination to other: handles routing of packets between different networks and logical addressing.
Transport layer — Process-to-process message delivery: provides end-to-end communication services for applications (e.g., segmentation, reliability, flow control).
Application layer — Allow resources to network access: offers network services directly to user applications and enables access to network resources.
Thus the correct mapping is: Physical → Transmission of bit stream; Data Link → Formation of frames; Network → Move packets; Transport → Process-to-process delivery; Application → Allow access to network resources.
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