Practice Test GeeksVCA - VCA-DCV VMware Certified Associate on vSphere Practice Test
← All VCA Flashcard Decks

VSphere Resource Management & Monitoring Flashcards

7 cards from real VCA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 VSphere Resource Management & Monitoring flashcards as text

  1. Which memory reclamation technique has the greatest performance impact and is used as a last resort?

    Answer: Host-level swapping

    Hypervisor swapping to disk is the most costly technique and is used only under severe pressure.

  2. Which component inside the guest enables memory ballooning?

    Answer: The balloon driver installed with VMware Tools

    The vmmemctl balloon driver is part of VMware Tools.

  3. When does Storage I/O Control begin enforcing datastore shares?

    Answer: When datastore latency exceeds a congestion threshold

    SIOC throttles based on shares once latency passes the configured threshold (default 30 ms).

  4. Where in the vSphere Client can you review recent operations such as VM power-on and migrations?

    Answer: Tasks and Events

    The Monitor > Tasks and Events views log operations and events.

  5. Which ESXi log file holds kernel-level messages such as storage path and driver events?

    Answer: vmkernel.log

    vmkernel.log records ESXi VMkernel messages.

  6. What does memory overcommitment mean?

    Answer: Total memory configured for powered-on VMs exceeds host physical memory

    Overcommitment occurs when allocated VM memory is greater than physical RAM.

  7. What does Network I/O Control allow on a vSphere Distributed Switch?

    Answer: Allocating bandwidth to traffic types using shares, limits, and reservations

    NIOC prioritizes system and VM traffic types on a distributed switch.