350-401 · Question #805
By default, which virtual MAC address does HSRP group 30 use?
The correct answer is B. 00:00:0c:07:ac:1e. HSRP group 30 uses a default virtual MAC address derived from the standard HSRP prefix and the group ID converted to hexadecimal.
Question
Options
- A00:05:0c:07:ac:30
- B00:00:0c:07:ac:1e
- C05:0c:5e:ac:07:30
- D00:42:18:14:05:1e
How the community answered
(24 responses)- A4% (1)
- B92% (22)
- C4% (1)
Why each option
HSRP group 30 uses a default virtual MAC address derived from the standard HSRP prefix and the group ID converted to hexadecimal.
This MAC address format does not conform to the standard HSRP virtual MAC address prefix and group ID conversion.
The default HSRP virtual MAC address format is 00:00:0C:07:AC:XX, where XX is the HSRP group number in hexadecimal. For group 30 (decimal), the hexadecimal equivalent is 1E, resulting in the MAC address 00:00:0C:07:AC:1E.
This MAC address does not match the standard HSRP virtual MAC address prefix and uses an incorrect format.
This MAC address is not the default HSRP virtual MAC address format.
Concept tested: HSRP virtual MAC address format
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-3s/fhrp-xe-3s-book/fhrp-hsrp.html#concept_81232C71E19446EE89A508F49962A5A8
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