STIG AS Level OS

Last updated 8 months ago

5 questions

STIG AS Level OS

Last updated 8 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

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)

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)

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)

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)

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)