What is an operating system (OS)?
The core software that manages hardware resources and provides an interface for users and applications.
What is the OS kernel?
The core of the operating system that handles low-level tasks like process, memory, and device management.
What is a shell?
The user interface to the OS (CLI or GUI) that lets you run commands and programs.
What are the two primary OS interaction methods?
Command-line interface (CLI) and graphical user interface (GUI).
What is a driver?
A software component that lets the OS communicate with specific hardware devices.
What is a service (daemon)?
A background process that provides system or application functionality without user interaction.
What is the key advantage of a 64-bit OS over a 32-bit OS?
It can address far more RAM and handle larger data types efficiently.
Can 64-bit programs run on a 32-bit OS?
No. 64-bit apps require a 64-bit OS and 64-bit CPU.
Can 32-bit programs run on a 64-bit Windows OS?
Often yes, via WoW64 compatibility (drivers must be 64-bit).
What Windows feature encrypts entire internal drives?
BitLocker Drive Encryption.
What Windows feature encrypts removable drives (USB/external)?
BitLocker To Go.
What hardware chip stores keys for BitLocker?
Trusted Platform Module (TPM).
What Windows feature encrypts individual files/folders on NTFS volumes?
Encrypting File System (EFS).
How do you encrypt a file/folder with EFS?
Right-click item > Properties > General > Advanced > check ‘Encrypt contents to secure data’ > OK.
What is a Windows workgroup?
A simple peer-to-peer model where each PC manages its own accounts and permissions.
What is a Windows domain?
A centrally managed model using a directory service (e.g., Active Directory) for authentication and policy.
What is Active Directory (AD)?
Microsoft’s directory service that provides centralized authentication, authorization, and policy management.
What is the main benefit of domains over workgroups?
Centralized control: easier user, device, and policy management for IT.
What is File Explorer?
Windows’ primary file and folder manager.
Where do you show hidden files in File Explorer?
File Explorer > View (or Layout/Show) > enable ‘Hidden items’.
How do you show file extensions in Windows?
File Explorer > Options > View tab > uncheck ‘Hide extensions for known file types’.
What does the read-only attribute do?
Prevents editing of a file (programs may override; folders inherit rules for contents).
What does the hidden attribute do?
Hides files/folders from normal view (unless ‘Hidden items’ is enabled).
What does the archive attribute do?
Marks files for backup software to process (used by some backup strategies).