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STIG AS Level OS

Last updated 6 months ago
5 questions
https://stig-tracker.com/simulate/os/



An Operating System (OS) is responsible for managing a computer's resources efficiently. It performs several key management tasks to ensure smooth operation. These tasks include memory management, file management, security management, hardware management (input/output/peripherals), and process management.

1. Memory Management

Memory management involves handling a computer's primary memory (RAM). The OS is responsible for:
  • Allocating memory to programs and processes.
  • Tracking memory usage and availability.
  • Managing virtual memory to extend RAM using disk storage.
  • Preventing memory leaks and ensuring efficient memory usage.
  • Swapping processes between memory and disk when needed.

2. File Management

File management ensures efficient storage, retrieval, and organization of files. The OS manages files by:
  • Providing a hierarchical directory structure for organizing files.
  • Controlling access permissions to files and directories.
  • Tracking file locations and ensuring data integrity.
  • Handling file operations like creation, deletion, reading, and writing.

3. Security Management

Security management is essential for protecting system resources and data. The OS implements security by:
  • Enforcing authentication mechanisms (user login, passwords, biometrics).
  • Managing user permissions and access controls.
  • Providing encryption and firewall protection.
  • Monitoring and preventing unauthorized access or malware threats.

4. Hardware Management (Input/Output/Peripherals)

The OS manages hardware resources, including input/output devices and peripherals. This involves:
  • Detecting and configuring hardware components.
  • Managing device drivers for communication between hardware and software.
  • Allocating resources like CPU time and memory for peripheral operations.
  • Facilitating smooth data transfer between devices and applications.

5. Process Management

Process management is crucial for handling running applications and multitasking. The OS manages processes by:
  • Creating and scheduling processes efficiently.
  • Allocating CPU time and resources to active processes.
  • Managing process priorities and execution order.
  • Ensuring smooth communication between processes.
  • Handling process synchronization and preventing deadlock
4

Explain the role of memory management in an operating system.

  • Allocates memory to programs and processes. (1)
  • Tracks memory usage and availability. (1)
  • Manages virtual memory for efficient usage. (1)
  • Handles memory swapping between RAM and disk. (1)
2

Describe two key functions of file management in an operating system.

  • Provides a hierarchical directory structure. (1)
  • Controls access permissions to files. (1)
  • Tracks file locations and ensures data integrity. (1)
  • Handles file operations like creation, deletion, reading, and writing. (1)
1

How does an operating system ensure security management?

  • Enforces authentication mechanisms (e.g., passwords, biometrics). (1)
  • Manages user permissions and access controls. (1)
  • Provides encryption and firewall protection. (1)
  • Monitors and prevents unauthorized access or malware threats. (1)
4

Explain how an OS manages hardware resources such as input/output devices.

  • Detects and configures hardware components. (1)
  • Manages device drivers for communication between hardware and software. (1)
  • Allocates resources like CPU time and memory for peripherals. (1)
  • Facilitates smooth data transfer between devices and applications. (1)
5

What are the key responsibilities of process management in an OS?

  • Creates and schedules processes efficiently. (1)
  • Allocates CPU time and resources to active processes. (1)
  • Manages process priorities and execution order. (1)
  • Ensures smooth communication between processes. (1)
  • Handles process synchronization and prevents deadlocks. (1)