OA Exams

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  • November 26, 2024

Question 21

Which Windows tool checks for disk errors and repairs file system issues?

A) sfc

B) chkdsk

C) ipconfig

D) ping

Correct Answer: B) chkdsk

Explanation: chkdsk checks the disk for errors and attempts to repair them.

Question 22

Which file system does macOS use to manage encryption through FileVault?

A) NTFS

B) APFS

C) exFAT

D) FAT32

Correct Answer: B) APFS

Explanation: APFS supports encryption through macOS's FileVault feature.

Question 23

 Which command is used to delete files in Linux?

A) mv

B) rm

C) cp

D) cd

Correct Answer: B) rm

Explanation: The rm command is used to delete files in Linux.

Question 24

Which Windows feature helps secure drives by encrypting them with user credentials?

A) BitLocker

B) NTFS permissions

C) EFS

D) Credential Guard

Correct Answer: A) BitLocker

Explanation: BitLocker encrypts entire drives and requires authentication for access.

Question 25

Which Windows version includes Credential Guard as a security feature?

A) Windows 10 Enterprise

B) Windows Home

C) Windows Server 2016

D) Windows 8.1

Correct Answer: A) Windows 10 Enterprise

Explanation: Windows 10 Enterprise includes Credential Guard, a security feature to protect login credentials.

Question 26

Which command in Linux moves or renames files?

A) cp

B) mv

C) rm

D) ls

Correct Answer: B) mv

Explanation: The mv command is used to move or rename files in Linux.

Question 27

Which protocol translates URLs into IP addresses on the Internet?

A) DNS

B) DHCP

C) FTP

D) SSH

Correct Answer: A) DNS

Explanation: DNS (Domain Name System) translates domain names into IP addresses, allowing users to access websites.

Question 28

What is the default file system for macOS-based computers and laptops?

A) NTFS

B) exFAT

C) ext4

D) APFS

Correct Answer: D) APFS

Explanation: APFS is the default file system for macOS, offering better performance and encryption for modern Macs.

Question 29

Which Linux command is used to modify file access permissions?

A) chmod

B) chown

C) mv

D) rm

Correct Answer: A) chmod

Explanation: chmod is used to change the access permissions of files in Linux.

Question 30

Which command in Linux is used to change the owner of a file?

A) mv

B) chmod

C) chown

D) cp

Correct Answer: C) chown

Explanation: The chown command changes the owner of a file in Linux.

Question 31

What is the file extension for Windows PowerShell scripts?

A) .sh

B) .exe

C) .ps1

D) .bat

Correct Answer: C) .ps1

Explanation: Windows PowerShell scripts use the .ps1 file extension.

Question 32

Which protocol allows a computer to boot from a network server without local storage?

A) PXE

B) DNS

C) DHCP

D) SSH

Correct Answer: A) PXE

Explanation: PXE (Preboot eXecution Environment) allows a computer to boot from a network server, typically used for OS installation.

Question 33

 Which file system is optimized for flash drives and supports file sizes larger than 4 GB?

A) NTFS

B) exFAT

C) FAT32

D) APFS

Correct Answer: B) exFAT

Explanation: exFAT is optimized for flash drives and supports larger file sizes compared to FAT32.

Question 34

Which command in Windows can be used to trace the path to a destination server?

A) tracert

B) ping

C) ipconfig

D) netstat

Correct Answer: A) tracert

Explanation: tracert is used to trace the path taken by packets to reach a destination server.

Question 35

Which Linux command is used to copy files from one location to another?

A) mv

B) rm

C) cp

D) ls

Correct Answer: C) cp

Explanation: The cp command is used to copy files from one location to another in Linux.

Question 36

 Which encryption method in Windows encrypts individual files and folders using user credentials?

A) BitLocker

B) EFS

C) NTFS

D) APFS

Correct Answer: B) EFS

Explanation: EFS (Encrypting File System) encrypts individual files and folders using user credentials.

Question 37

Which protocol is used to transfer files securely over the Internet?

A) FTP

B) SSH

C) SCP

D) HTTP

Correct Answer: C) SCP

Explanation: SCP (Secure Copy Protocol) transfers files securely over the Internet using SSH.

Question 38

Which Windows tool is used to check system information like CPU, memory, and disk usage?

A) Task Manager

B) Resource Monitor

C) msinfo32

D) Event Viewer

Correct Answer: B) Resource Monitor

Explanation: Resource Monitor provides detailed information about CPU, memory, disk, and network usage.

Question 39

Which command is used in Windows to shut down or restart a computer?

A) taskkill

B) shutdown

C) netstat

D) ipconfig

Correct Answer: B) shutdown

Explanation: shutdown is used to shut down or restart a Windows computer.

Question 40

Which Linux command is used to install software packages on Debian-based systems?

A) yum

B) apt-get

C) rpm

D) chmod

Correct Answer: B) apt-get

Explanation: apt-get is used to install and manage software packages on Debian-based systems like Ubuntu.

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