Operating System Fundamentals Week 1 NPTEL Assignment Answers 2025
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✅ Subject: Operating System Fundamentals
📅 Week: 1
🎯 Session: NPTEL 2025 July-October
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NPTEL Operating System Fundamentals Week 1 Assignment Answers 2025
1. Which of the following is not the responsibility of the operating system?
(A) Resource management
(B) Control the program execution
(C) Network management
(D) Developing application software
Answer : For Answers Click Here
2. Which of the following is/are not treated as resource in a computer system?
(A) CPU cycles
(B) Main memory
(C) User processes
D) None of the other options
Answer :
3. Which of the following is not an example of a system program?
(A) Disk defragmenter
(B) Antivirus program
(C) An operating system
(D) A photo editing software
Answer :
4. Which one of the following is not considered a real-time operating system?
(A) ONX
(B) RILinux
(C) VRTX
(D) Windows
Answer :
5. Which of the following is not applicable for RAM?
(A) RAM 1s volatile memor
(B) Holds the BIOS (Basic Input/Output System), which is essential for starting up the computer
(C) RAM is significantly faster than hard drives
(D) RAM allows the CPU to access the memory locations directly
Answer : For Answers Click Here
6. Which of the following is/are true for interipts?
(A) Interrupts temporarily suspend the currently running process to handle a specific event
(B) When an interrupt occurs, the CPU saves its current state
(C) Interrupts can be generated both by external devices or by a program itself
(D) All of the above
Answer :
7. Which of the following components is closest to the CPU?
(A) RAM
(B) Cache
(C) Registers
(D) Hard storage drives
Answer :
8. Which of the following is not a characteristic of an Interactive Operating System?
(A) Real-time interaction with users
(B) Quickly processes user input and provides feedbacl
(C) Processes jobs in a sequence without user interaction
(D) None of the above
Answer :
9. Which of the following is true about the address bus?
(A) It carries data from the CPU to the memor
(B) It carries the location address (memory address or I/O port) where data will b read or written
(C) It carries control signals
(D) None of the above
Answer :
10. Which of the following is not true about the data bus?
(A) Transmits data between the CPU, memory, and peripherals
(B) The data buses are unidirectional
(C) A wider data bus allows for the transfer of more data bits simultaneously
(D) None of the above
Answer : For Answers Click Here
NPTEL Operating System Fundamentals Week 1 Assignment Answers 2024
1. Which of the following is not the responsibility of the operating system?
Options:
(A) Resource management
(B) Control the program execution
(C) Creation of a user-friendly environment
(D) Network management
(E) Compiler design
Answer: (E) Compiler design
Explanation:
Compiler design is the responsibility of language designers and developers, not the operating system. An OS handles resources, execution, I/O, etc., but compilers are application-level software.
2. Choose the incorrect option.
Options:
(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
Answer: (E) System programs degrade the performance of the computer system
Explanation:
System programs do not degrade performance; they enhance system functionality. All other options correctly describe system programs.
3. Which of the following is not an example of a system program?
Options:
(A) Disk cleanup tool
(B) Antivirus program
(C) Text editor
(D) Web browser
(E) GRUB (Grand Unified Bootloader) loader
Answer: (D) Web browser
Explanation:
A web browser is an application program. System programs include utilities like disk tools, boot loaders, and antivirus, but not general-purpose applications.
4. What is the function of the command interpreter?
Options:
(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
Answer: (C) Execute the user-specified command
Explanation:
The command interpreter (like the shell) interprets and executes user commands. It does not compile or directly manage memory or devices.
5. Which of the following is not part of a device controller?
Options:
(A) Data Register
(B) RAM
(C) Control Register
(D) Status register
(E) DMA controller
Answer: (B) RAM
Explanation:
RAM is a separate memory module, not part of the device controller. Device controllers use registers to interact with the OS and hardware.
6. Direct Memory Access (DMA) technique is used for
Options:
(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
Answer: (B) Transferring data between peripheral devices and memory without CPU intervention
Explanation:
DMA allows peripherals to directly transfer data to/from memory, bypassing the CPU, improving speed and efficiency.
7. Which of the following components is closest to the CPU?
Options:
(A) RAM
(B) L1 cache
(C) L2 cache
(D) L3 cache
(E) Secondary storage
Answer: (B) L1 cache
Explanation:
L1 cache is the smallest but fastest memory located closest to the CPU core. It provides immediate access to frequently used data.
8. Which of the following is incorrect for an interactive Operating System (OS)?
Options:
(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
Answer: (A) It is designed for batch processing
Explanation:
Interactive OS is designed for real-time or near real-time user interactions, not batch processing, which runs jobs without user interaction.
9. Which of the following components do not need a device driver?
Options:
(A) Monitor
(B) RAM
(C) Printer
(D) Mouse
(E) Keyboard
Answer: (B) RAM
Explanation:
RAM is managed directly by the memory controller and OS, without needing a separate device driver, unlike I/O devices.
10. An interrupt may not occur when
Options:
(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
Answer: (E) The computer system intentionally turns off the interrupts
Explanation:
If the system disables interrupts (using instructions like CLI), then no interrupt will occur—even if other events are triggered.
