350-401 · Question #501
An engineer configures HSRP group 37. The configuration does not modify the default virtual MAC address. Which virtual MAC address does the group use?
The correct answer is D. 00:00:0c:07:ac:25. HSRPv1 uses a default virtual MAC address format of 0000.0C07.ACxx, where 'xx' is the hexadecimal representation of the HSRP group number.
Question
An engineer configures HSRP group 37. The configuration does not modify the default virtual MAC address. Which virtual MAC address does the group use?
Options
- AC0:00:00:25:00:00
- B00:00:0c:07:ac:37
- CC0:39:83:25:258:5
- D00:00:0c:07:ac:25
How the community answered
(24 responses)- A4% (1)
- C8% (2)
- D88% (21)
Why each option
HSRPv1 uses a default virtual MAC address format of 0000.0C07.ACxx, where 'xx' is the hexadecimal representation of the HSRP group number.
This MAC address does not follow the standard HSRP virtual MAC address format of 0000.0C07.ACxx.
While it follows the HSRP format prefix, the last octet (37) is the decimal group number, not its hexadecimal equivalent.
This MAC address does not follow the standard HSRP virtual MAC address format of 0000.0C07.ACxx.
The HSRP group number 37 in decimal is 25 in hexadecimal. For HSRPv1, the default virtual MAC address format is 0000.0C07.ACxx, which translates to 00:00:0c:07:ac:25 for group 37.
Concept tested: HSRP virtual MAC address format
Source: https://www.cisco.com/c/en/us/td/docs/ios/ipapp/configuration/guide/ipapp_c/iap_hsrp.html
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