VCP Quality Assurance & Improvement 4

Question 1

What does the vSphere esxtop utility measure that helps diagnose storage performance issues?

Accepted Answer

Disk latency (DAVG and KAVG)

Answer

esxtop's disk panel shows DAVG (device average latency) and KAVG (kernel average latency), which are critical for diagnosing storage bottlenecks.

Question 2

Which vSphere Network I/O Control (NIOC) feature ensures critical traffic types receive bandwidth during contention?

Accepted Answer

System traffic shares and reservations

Answer

NIOC allows administrators to assign shares and reservations to system traffic types (vMotion, FT, storage) to prioritize critical network traffic.

Question 3

What log file should an administrator review to troubleshoot vCenter Server connection and inventory synchronization issues?

Accepted Answer

vpxd.log

Answer

The vpxd.log file records vCenter Server daemon activity including inventory operations, connections, and task execution.

Question 4

An ESXi host shows a 'purple screen of death' (PSOD). What is the recommended first step for quality analysis?

Accepted Answer

Capture the vmkernel dump for VMware support analysis

Answer

A PSOD generates a vmkernel core dump containing diagnostic information; capturing it is critical before rebooting so VMware support can analyze the root cause.

Question 5

Which vSphere feature continuously monitors cluster resource usage and proactively predicts capacity shortfalls?

Accepted Answer

vRealize Operations Manager

Answer

vRealize Operations Manager uses predictive analytics to forecast when cluster resources will be exhausted based on historical trends.

VCP - VMware Certified Professional Practice Test

VCP - VMware Certified Professional Practice Test

VCP Quality Assurance & Improvement 4