Text preview & study summary

CompTIA A+ Core 2 220-1202 - Domain 1 Operating Systems

A free sample of 5 questions from this quiz, shown in full with answer choices and explanations. No interactivity — everything is visible on this page for study and review.

Want to test your knowledge? Launch the Interactive Exam Simulator

Question 1

A technician needs to install Windows 11 Pro on a new PC. The BIOS shows the drive is initialized as MBR. Windows 11 requires which partition style?

Answer choices

  • A. MBR (Master Boot Record)

  • B. GPT (GUID Partition Table) (Correct)

  • C. Either MBR or GPT — Windows 11 supports both

  • D. FAT32 partition table

Explanation

Windows 11 requires GPT (GUID Partition Table) for the system drive. It also requires UEFI firmware (not legacy BIOS/CSM) and TPM 2.0. MBR/legacy BIOS is used with Windows 10 and earlier. The drive must be converted to GPT before installing Windows 11.

Question 2

A technician needs to verify the integrity of Windows system files after a malware incident. Which command repairs corrupted or missing Windows system files?

Answer choices

  • A. `chkdsk /r`

  • B. `sfc /scannow` (Correct)

  • C. `defrag c:`

  • D. `ipconfig /flushdns`

Explanation

`sfc /scannow` (System File Checker) scans all protected Windows system files and replaces corrupted or missing ones with the cached versions from the Windows Component Store. `chkdsk` checks and repairs the file system/disk; `defrag` defragments HDDs.

Question 3

A Linux administrator needs to view the last 50 lines of a log file in real-time as it updates. Which command is MOST appropriate?

Answer choices

  • A. `cat /var/log/syslog | head -50`

  • B. `tail -f -n 50 /var/log/syslog` (Correct)

  • C. `grep -n 50 /var/log/syslog`

  • D. `view /var/log/syslog`

Explanation

`tail -f` follows a file in real-time, displaying new lines as they are appended. `-n 50` shows the last 50 lines. This combination is the standard command for monitoring log files in real-time on Linux/Unix systems.

Question 4

A Windows 10 workstation is experiencing performance issues. A technician wants to prevent unnecessary applications from loading at startup. Which tool is MOST appropriate?

Answer choices

  • A. Device Manager

  • B. Task Manager → Startup tab (Correct)

  • C. Disk Management

  • D. Control Panel → Programs and Features

Explanation

Task Manager's Startup tab (or `msconfig`'s Startup tab in older Windows) lists all startup applications with their impact rating and allows enabling/disabling them. This is the most accessible and appropriate tool for managing startup programs.

Question 5

A user deleted an important file in Windows. The Recycle Bin has been emptied. The computer has Windows 10 with File History enabled and backups to an external drive. How can the file be recovered?

Answer choices

  • A. Use System Restore

  • B. Use File History to restore the previous version of the file (Correct)

  • C. The file is permanently deleted and cannot be recovered

  • D. Run `sfc /scannow`

Explanation

File History (enabled in Windows 10/11) continuously backs up files from the user's libraries, desktop, and contacts to an external drive or network location. Files deleted after being backed up can be restored through the "Restore personal files" option in File History.