3. Virtualization

Performance — Quiz

Test your understanding of performance with 5 practice questions.

Practice Questions

Question 1

Which virtualization mechanism introduces additional CPU overhead by requiring two levels of address translation for guest memory accesses?

Question 2

Which CPU metric indicates the percentage of CPU time a VM spends idle while waiting for I/O operations to complete?

Question 3

Which benchmark is commonly used to measure memory bandwidth performance in virtualized environments?

Question 4

If a VM writes 4096\,MB of data using dd in 8 seconds, what throughput does it report in MB/s?

Question 5

A host system has average disk latency of 4\,ms, while its VM reports 10\,ms. What is the percentage increase in latency inside the VM?