Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 395

Which statement describes the rolling EPLD upgrade on a Cisco MDS 9000 Series Switch?

Answer options

• A. The standby supervisor module is capable of performing the upgrade.
• B. Only the modules that are being upgraded are disrupted.
• C. All modules on the switch are disrupted.
• D. An EPLD upgrade is nondisruptive.

Correct answer: B

Explanation

The correct answer is B, as during a rolling EPLD upgrade, only the modules that are actively being upgraded experience downtime, allowing the rest of the system to remain operational. Option A is incorrect because the backup supervisor module does not perform the upgrade itself; option C is wrong as it implies a total disruption, which is not the case; and option D is incorrect since the upgrade process does lead to disruption for the modules being upgraded.