ITPEC FE Morning April 2019 Question 32
ITPEC FE Morning April 2019 — Question 32 of 80
Switching Hub (Layer 2 Switch) — forwards frames based on MAC address table.
A Layer 2 switch learns which MAC addresses are reachable on each port and forwards frames only to the port where the destination MAC resides.
Why not others:
- (a) Fragmentation — a Layer 3 (router) function, not Layer 2
- (b) Dynamic IP allocation — this is DHCP, not a switch feature
- (d) Broadcast to all ports — this describes a basic hub (repeater), not a switching hub
Key rule: Hub = broadcast to all ports; Switch = selective forwarding by MAC address.
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