H12-891_V1.0 · Question #127
What is the default aging time of Huawei switch MAC address table?
The correct answer is C. 300. Huawei switches use 300 seconds (5 minutes) as the default MAC address table aging time, making C correct. This value determines how long the switch retains a MAC entry after the last frame from that address is received - if no traffic arrives within that window, the entry is…
Question
What is the default aging time of Huawei switch MAC address table?
Options
- A500
- B5
- C300
- D400
How the community answered
(47 responses)- A6% (3)
- B4% (2)
- C72% (34)
- D17% (8)
Explanation
Huawei switches use 300 seconds (5 minutes) as the default MAC address table aging time, making C correct. This value determines how long the switch retains a MAC entry after the last frame from that address is received - if no traffic arrives within that window, the entry is purged to keep the table fresh and avoid stale mappings.
The distractors are simply wrong values: 500 (A) and 400 (D) have no basis in Huawei's default configuration, and 5 (B) conflates seconds with minutes - 5 minutes is the correct duration, but 5 seconds would cause constant table churn.
Memory tip: Think "5 minutes = 300 seconds" - Huawei follows the same 300-second default used by many enterprise vendors (including Cisco), so if you remember the 5-minute rule, you can always convert to 300 for the exam.
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