350-001 · Question #27
Refer to the exhibit. Which option best describes how the virtual MAC address is composed?
The correct answer is C. based on a number manually configured by the administrator. In HSRP (Hot Standby Router Protocol), the virtual MAC address is derived from a number that the administrator manually configures - the HSRP group number. For HSRPv1, the virtual MAC format is 0000.0c07.acXX, where XX is the group number in hexadecimal (groups 0–255). For…
Question
Refer to the exhibit. Which option best describes how the virtual MAC address is composed?
Exhibit
Options
- Abased on a randomly generated number
- Bbased on the burned-in MAC address of the router
- Cbased on a number manually configured by the administrator
- Dbased on the configured standby group number
How the community answered
(34 responses)- A6% (2)
- B3% (1)
- C91% (31)
Explanation
In HSRP (Hot Standby Router Protocol), the virtual MAC address is derived from a number that the administrator manually configures - the HSRP group number. For HSRPv1, the virtual MAC format is 0000.0c07.acXX, where XX is the group number in hexadecimal (groups 0–255). For HSRPv2, the format is 0000.0c9f.fXXX, where XXX is the group number (0–4095). The administrator explicitly assigns the standby group number in the configuration, so the virtual MAC is ultimately based on a manually configured value. It is neither random nor derived from the physical (burned-in) MAC address of the router.
Topics
Community Discussion
No community discussion yet for this question.