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Unit 4 Practice — Virtualization and Operating Systems

Fifteen formative questions covering virtualization/cloud plus Windows, macOS, Linux, filesystems, applications, and cross-platform support.Automatic score only. Nothing is submitted or stored as a learner grade.
  1. 1. Why use a VM for software testing?
  2. Layered virtualization diagram showing physical host resources beneath virtualization, guest workloads, networking, storage, and an external cloud boundary.
    Visual evidence: Read the dependency direction from physical resources toward virtual workloads rather than treating a VM as independent hardware.
    2. Use the virtualization diagram. Which layer allocates physical host resources to virtual machines?
  3. 3. Which cloud service model leaves the customer responsible for the guest OS and applications?
  4. 4. What does cloud elasticity describe?
  5. 5. Which Windows tool is best for inspecting hardware/driver state?
  6. 6. Which Windows tool is used to inspect logged system/application events?
  7. 7. Which command displays Windows IP configuration?
  8. 8. Why back up before a clean Windows install?
  9. 9. What is GPT?
  10. 10. What does FileVault provide?
  11. 11. What is macOS Keychain used for?
  12. 12. What does `sudo` provide on Linux-like systems?
  13. 13. What is the role of `apt` or `dnf`?
  14. 14. Why does filesystem compatibility matter?
  15. 15. What is the best cross-platform technician habit?