H31-341_V2.5 · Question #769
When the bridge uses IV L learning mode. Create an entry in the MAC address table based on the original MAC address and original port of the data frame. This entry applies to all VLANs
The correct answer is B. False. In IVL (Independent VLAN Learning) mode, MAC address table entries are VLAN-specific - each entry is keyed by MAC address plus VLAN ID, meaning the same MAC address can have separate entries for different VLANs. The statement's claim that an entry "applies to all VLANs" is…
Question
When the bridge uses IV L learning mode. Create an entry in the MAC address table based on the original MAC address and original port of the data frame. This entry applies to all VLANs
Options
- ATrue
- BFalse
How the community answered
(39 responses)- A21% (8)
- B79% (31)
Explanation
In IVL (Independent VLAN Learning) mode, MAC address table entries are VLAN-specific - each entry is keyed by MAC address plus VLAN ID, meaning the same MAC address can have separate entries for different VLANs. The statement's claim that an entry "applies to all VLANs" is wrong, which makes B correct.
Option A is incorrect because it describes the behavior of SVL (Shared VLAN Learning) mode, not IVL. In SVL, a single flat MAC table is shared across all VLANs, so one learned entry does apply universally - the exact opposite of IVL's design.
The core purpose of IVL is isolation: traffic forwarding decisions are scoped per-VLAN, preventing a MAC entry in VLAN 10 from influencing forwarding in VLAN 20.
Memory tip: Think of the "I" in IVL as "Isolated" - each VLAN independently maintains its own table. Contrast with SVL where the "S" means "Shared" across all VLANs.
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