Operating Systems Flashcards

Which macOS utility provides a graphical view of running processes and system resource usage similar to Windows Task Manager?

Answer: Activity Monitor

Activity Monitor on macOS displays CPU, memory, energy, disk, and network usage for all running processes in real time.

A Windows computer fails to boot and displays 'BOOTMGR is missing.' What is the best first step to resolve this?

Answer: Boot from installation media and use Startup Repair

Booting from Windows installation media and running Startup Repair can rebuild the boot manager without requiring a full reinstall.

Which command in Windows is used to check and repair file system errors on a drive?

Answer: chkdsk /f

The 'chkdsk /f' command scans the specified drive for file system errors and fixes them; /f is required to actually repair found errors.

In Linux, which command changes the permissions of a file so the owner can read and write, while group and others can only read?

Answer: chmod 644 filename

chmod 644 sets owner read+write (6), group read-only (4), and others read-only (4), which is the standard permission set for most files.

What is the Windows Registry?

Answer: A hierarchical database that stores OS and application configuration settings

The Windows Registry is a hierarchical database that stores configuration settings for the operating system, hardware, and installed applications.

A technician wants to schedule a script to run automatically every night on a Windows machine. Which tool should be used?

Answer: Task Scheduler

Task Scheduler allows administrators to create tasks that execute programs or scripts at specified times or in response to system events.

Which type of hypervisor runs directly on the physical hardware without a host operating system?

Answer: Type 1 hypervisor

A Type 1 (bare-metal) hypervisor runs directly on hardware, offering better performance and isolation than Type 2 hypervisors that run on top of a host OS.