Pass 642-997 Exam Easily With Newly Free Cisco 642-997 Exam Dumps (21-30)

QUESTION 21
Which statement about electronic programmable logic device image upgrades is true?

A.    EPLD and ISSU image upgrades are nondisruptive.
B.    An EPLD upgrade must be performed during an ISSU system or kickstart upgrade.
C.    Whether the module being upgraded is online or offline, only the EPLD images that have different current and new versions are upgraded.
D.    You can execute an upgrade or downgrade only from the active supervisor module.

Read more