OA Exams
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.
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.
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.
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.
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.
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.
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.
What is the default file system for macOS-based computers and laptops?
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.
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.
Which command in Linux is used to change the owner of a file?
B) chmod
C) chown
D) cp
Correct Answer: C) chown
Explanation: The chown command changes the owner of a file in Linux.
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.
Which protocol allows a computer to boot from a network server without local storage?
A) PXE
B) DNS
C) DHCP
Correct Answer: A) PXE
Explanation: PXE (Preboot eXecution Environment) allows a computer to boot from a network server, typically used for OS installation.
Which file system is optimized for flash drives and supports file sizes larger than 4 GB?
C) FAT32
Correct Answer: B) exFAT
Explanation: exFAT is optimized for flash drives and supports larger file sizes compared to FAT32.
Which command in Windows can be used to trace the path to a destination server?
A) tracert
B) ping
D) netstat
Correct Answer: A) tracert
Explanation: tracert is used to trace the path taken by packets to reach a destination server.
Which Linux command is used to copy files from one location to another?
Correct Answer: C) cp
Explanation: The cp command is used to copy files from one location to another in Linux.
Which encryption method in Windows encrypts individual files and folders using user credentials?
B) EFS
C) NTFS
Correct Answer: B) EFS
Explanation: EFS (Encrypting File System) encrypts individual files and folders using user credentials.
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.
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.
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.
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.