Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 167

An engineer is performing an ISSU upgrade on the Cisco MDS 9000 Series Switch. What is the impact on the control plane of the switch?

Answer options

• A. It is down for less than 80 seconds.
• B. It remains down for more than 80 seconds but less than 140 seconds.
• C. It remains down until the next reboot.
• D. It remains up throughout the update.

Correct answer: A

Explanation

The correct answer is A, as the control plane experiences downtime of less than 80 seconds during the ISSU upgrade, ensuring minimal disruption. Options B and C indicate longer downtime periods, which are not accurate for this upgrade process, while option D incorrectly states that the control plane remains fully operational throughout the update.