The following command was issued on a router that is being configured as the active HSRP router.
standby ip 10.2.1.1
Which statement is true about this command?
A.
This command will not work because the HSRP group information is missing
B.
The HSRP MAC address will be 0000 0c07 ac00
C.
The HSRP MAC address will be 0000 0c07 ac01.
D.
The HSRP MAC address will be 0000.070c ad01.
E.
This command will not work because the active parameter is missing
Explanation:
Naturally, each router keeps a unique MAC address for its interface. This MAC address is
always associated with the unique IP address configured on the interface. For the virtual
router address, HSRP defines a special MAC address of the form 0000.0c07.acxx, where
xx represents the HSRP group number as a two-digit hex value. For example, HSRP
Group 1 appears as 0000.0c07.ac01, HSRP Group 16 appears as 0000.0c07.ac10, and so on.Official Cert Guide page 273
without a group specified it will default to group 0. xx would be 00 or 0000.0c07.ac00
ac00 because the default group, ( it is not specified in the question therefore it will be default group ) is O, so in hex will be 00. easy
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