NetApp Certified Technology Associate (NCTA) — Question 10

What is an advantage of server virtualization from a maintenance perspective?

Answer options

• A. Hosts can be powered off with no effect to the virtual machines running on the hosts.
• B. Virtual machines that are powered on but not being accessed, use no CPU or memory resources.
• C. Virtual machines can be non-disruptively relocated to more powerful platforms, if required.
• D. Hosts can be upgraded or replaced non-disruptively to the virtual machines running on the hosts.

Correct answer: B

Explanation

The correct answer is B because virtual machines that are powered on but not accessed do not utilize any CPU or memory resources, allowing for more efficient resource management. Options A and D are incorrect because turning off hosts or upgrading them can still affect the virtual machines. Option C, while true, does not address maintenance specifically as directly as option B does.