opaerational system states in an operating

Module

1. Which of the following is not the responsibility of the operating
system?
(A) Resource management
(B) Control the program execution
(C) Creation of a user-friendly environment
(D) Network management
(E) Compiler design
(E) Compiler design
The operating system is responsible for resource management, controlling program execution,
creating a user-friendly environment, and network management. However, compiler design is
typically handled by programming language developers and is not a direct responsibility of the
operating system.
Choose the incorrect option.
(A) System programs are associated with the operating system
(B) System programs are not necessarily part of the kernel
(C) System programs interact with the kernel to manage hardware
resources
(D) System programs help user to manage the files
(E) System programs degrade the performance of the computer
system
(E) System programs degrade the performance of the computer system
System programs are designed to facilitate the efficient management and utilization of computer
resources. They generally enhance performance and usability, rather than degrade it.

2. Which of the following is not an example of a system program?
(A) Disk cleanup tool
(B) Antivirus program
(C) Text editor
(D) Web browser
(E) GRUB (Grand Unified Bootloader) loader
(D) Web browser
System programs typically include tools and utilities that help manage and maintain the computer
system, such as disk cleanup tools, antivirus programs, text editors, and bootloaders like GRUB. A
web browser, while essential for accessing the internet, is considered an application program rather
than a system program.
What is the function of the command interpreter?
(A) Translating program in a high-level language into machine code
(B) Memory management
(C) Execute the user-specified command
(D) Controlling input/output operations
(E) Managing file system operations
(C) Execute the user-specified command
The command interpreter, also known as the shell, is responsible for executing user-specified
commands. It interprets the commands entered by the user and passes them to the operating
system for execution.
Which of the following is not part of a device controller?
(A) Data Register
(B) RAM

3. (C) Control Register
(D) Status register
(E) DMA controller
(B) RAM
A device controller typically includes data registers, control registers, status registers, and may have a
DMA (Direct Memory Access) controller. RAM (Random Access Memory), however, is not part of a
device controller; it is a separate component used for system memory.
Direct Memory Access (DMA) technique is used for
(A) Managing CPU clock speeds
(B) Transferring data between peripheral devices and memory without
CPU intervention
(C) Managing hardware resources
(D) Managing the interrupts
(E) Executing the programs
(B) Transferring data between peripheral devices and memory without CPU intervention
The Direct Memory Access (DMA) technique allows peripheral devices to directly transfer data to and
from memory without involving the CPU, which improves system efficiency and performance.
Which of the following components is closest to the CPU?
(A) RAM
(B) L1 cache
(C) L2 cache
(D) L3 cache
(E) Secondary storage

4. (B) L1 cache
The L1 cache is the closest component to the CPU, located within the CPU itself. It provides the
fastest access to frequently used data and instructions.
Which of the following is incorrect for an interactive Operating System
(OS)?
(A) It is designed for batch processing
(B) It is designed to achieve a response time as low as possible
(C) It is designed to respond promptly to user inputs
(D) It is suitable for multi-programming environment
(E) It is suitable for multi-user system
(A) It is designed for batch processing
An interactive operating system is not designed for batch processing. Instead, it focuses on achieving
low response times, responding promptly to user inputs, and supporting multi-programming and
multi-user environments. Batch processing is typically associated with non-interactive operating
systems.
Which of the following components do not need a device driver?
(A) Monitor
(B) RAM
(C) Printer
(D) Mouse
(E) Keyboard
(B) RAM

5. RAM (Random Access Memory) does not need a device driver. Device drivers are required for
components like monitors, printers, mice, and keyboards to facilitate communication between the
operating system and the hardware. RAM is directly managed by the motherboard and CPU without
the need for a specific driver.
An interrupt may not occur when
(A) a hardware component encounters an error or failure
(B) a data transfer between a peripheral device and memory is
completed
(C) a user program requests to execute a system call
(D) a disk operation is completed
(E) the computer system intentionally turns off the interrupts
(E) the computer system intentionally turns off the interrupts
Interrupts can be disabled or turned off by the computer system intentionally, which prevents any
interrupt from occurring. In all the other cases listed, interrupts can occur as a response to specific
events or conditions.