Ace your NIELIT O Level Exam with our carefully selected important questions and clear answers. Ideal for quick revision, smart preparation, and guaranteed confidence on exam day.
Important Questions and Answers for NIELIT O Level Exam
Advertisement
Ad Space - 728x90
Answer: All of the above
Explanation: OS can be installed via disk, network, or remote installation.
Answer: All of the above
Explanation: All listed methods can be used to install an OS.
Answer: init process
Explanation: init is the first user-space process started during boot.
Answer: Kernel Modules
Explanation: Kernel modules are loadable pieces of code extending OS features.
Answer: Operating System
Explanation: Others are language processors; OS is a system manager.
Answer: Windows 11
Explanation: Windows 11 is the latest major Windows release.
Answer: Ubuntu
Explanation: Ubuntu is a Linux-based operating system.
Answer: OSS
Explanation: These are examples of Open Source Software (OSS).
Answer: Commands
Explanation: Users give commands through CLI or GUI.
Advertisement
Ad Space - 728x90
Answer: Recycle Bin
Explanation: In Windows, deleted files are temporarily stored in Recycle Bin.
Answer: Drag
Explanation: You drag the edge to resize a window.
Answer: All of the above
Explanation: All listed tools help browse files in Windows.
Answer: Ctrl + P
Explanation: Ctrl + P is the universal print shortcut.
Answer: Microsoft Windows
Explanation: PCs typically use Windows as their OS.
Answer: Shutdown
Explanation: OS only boots on power-on or reset, not when shut down.
Answer: Backup
Explanation: Backups help restore data after crashes or failure.
Answer: System calls
Explanation: System calls allow user programs to interact with the OS.
Answer: Scott kernel
Explanation: Scott kernel is not a valid kernel type.
Advertisement
Ad Space - 728x90
Answer: MS-DOS
Explanation: MS-DOS supports only one user at a time.
Answer: NTLDR
Explanation: NTLDR is a Windows bootloader; Linux uses GRUB or LILO.
Answer: All of the mentioned
Explanation: OS performs all listed roles—interface, resource management, services.
Answer: Kernel
Explanation: The kernel handles low-level OS operations.
Answer: To get and execute the next user-specified command
Explanation: The shell interprets and runs user commands.
Answer: Shutdown the computer without closing the running applications
Explanation: Sleep mode pauses the system, retaining current work in RAM.
Answer: Performance monitor
Explanation: It’s a utility program, not a core OS component.
Advertisement
Ad Space - 728x90
Login with Google