What are the maximum number of redundancy groups that would be used on a chassis cluster?
A. The maximum number of redundancy groupsuseisequalto the number of configured physical interfaces.
B. The maximum number of redundancy groupsuseisequalto one more than the number of configured physicalinterfaces
C. The maximum number of redundancy groupsuseisequalto the number of configured logical interfaces.
D. The maximum number of redundancy groupsuseisequalto one more than the number of configured logicalinterfaces.
logical and redundant are one in the same. ie a redundant interface is still logical and not physical.
Do not know if it should not be A. Reference:
Note
The maximum number of redundancy groups is equal to the number of redundant Ethernet interfaces that you configure.
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-chassis-cluster-redundancy-groups.html