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Unit 4 Test — Virtualization and Operating Systems

Twenty scenario-focused questions covering virtualization, cloud computing, Windows administration/networking, macOS, Linux, filesystems, and application support.Automatic score only. Nothing is submitted or stored as a learner grade.
  1. 1. A technician needs to test a risky application configuration without changing the primary workstation. What is the best environment?
  2. 2. Several VMs are slow and the host shows nearly exhausted RAM. What is the strongest theory?
  3. 3. A VM communicates with other internal VMs but not the physical LAN. What should be checked?
  4. 4. Which virtualization model presents centrally hosted desktops to end users?
  5. 5. Which cloud model combines private and public cloud resources?
  6. 6. A SaaS outage prevents users from opening cloud documents even though their local Wi-Fi works. Which boundary is most relevant?
  7. 7. A PC must join a managed Windows domain. Why does Windows edition matter?
  8. 8. A Windows clean installation is planned. What should happen first?
  9. 9. Which Windows tool should be checked for a device with a warning icon after a driver update?
  10. 10. A Windows service crashes repeatedly. Where should logged failure evidence be reviewed?
  11. 11. A Windows client can reach 8.8.8.8 but not a hostname. Which tool is useful next?
  12. 12. A laptop on public Wi-Fi should generally use which Windows network profile behavior?
  13. 13. Which macOS feature protects data at rest with full-disk encryption?
  14. 14. A macOS app cannot access a stored credential after a keychain change. What subsystem should be investigated?
  15. 15. A Linux service reports an invalid configuration value. What should be done before reinstalling the OS?
  16. 16. Which command can inspect mounted filesystems on a Linux-like system?
  17. 17. What is `fsck` used for?
  18. 18. An application installer supports x86-64 only, but the computer uses ARM. What should the technician conclude?
  19. 19. A cloud productivity client opens but refuses to sync because the user's license expired. What layer failed?
  20. 20. What completes a cross-platform support ticket?