ITPEC FE Morning October 2018 Question 33
ITPEC FE Morning October 2018 — Question 33 of 80
OSI Model — Bridge Operating Layer — bridges operate at Layer 2 (Data Link).
Bridges forward frames based on MAC addresses at the Data Link layer (Layer 2).
Device-to-layer mapping:
- Layer 1 (Physical): repeater, hub
- Layer 2 (Data Link): bridge, switch
- Layer 3 (Network): router
- Layer 4 (Transport): gateway (transport-level)
Why not others:
- (a) Application layer — Layer 7, handles protocols like HTTP, FTP
- (b) Network layer — Layer 3, where routers operate using IP addresses
- (d) Transport layer — Layer 4, handles TCP/UDP connections
Key rule: Bridges use MAC addresses → Data Link layer.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official FE past-paper collection or Report an issue.