Which two statements about the process of upgrading an EPLD on a Cisco MDS 9000 series Switch are correct? (Choose two.)

Which two statements about the process of upgrading an EPLD on a Cisco MDS 9000 series Switch are correct? (Choose two.)
A . The EPLDs for all the modules on a switch must be upgraded at the same time.
B . EPLD upgrades can be completed without powering down the module during the upgrade.
C . EPLDs can be upgraded only to the latest EPLD image.
D . EPLDs can be upgraded without replacing the hardware.
E . An upgrade verification identifies the impact of each EPLD upgrade.

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Answer: D,E