200-301 · Question #978
By default, how long will the switch continue to know a workstation MAC address after the workstation stops sending traffic?
The correct answer is B. 300 seconds. This question asks about the default MAC address aging time on a network switch.
Question
By default, how long will the switch continue to know a workstation MAC address after the workstation stops sending traffic?
Options
- A200 seconds
- B300 seconds
- C600 seconds
- D900 seconds
How the community answered
(36 responses)- A3% (1)
- B86% (31)
- C8% (3)
- D3% (1)
Why each option
This question asks about the default MAC address aging time on a network switch.
200 seconds is not the default MAC address aging time on most standard switches.
Cisco switches, by default, maintain MAC address entries in their MAC address table for 300 seconds (5 minutes) after the last frame is received from that address. If no traffic is seen within this period, the entry is aged out.
600 seconds is not the default MAC address aging time on most standard switches; it is double the typical default.
900 seconds is not the default MAC address aging time on most standard switches; it is three times the typical default.
Concept tested: MAC address table aging timer
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg/swmac.html
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