Input Output Management Quizzes - Master Operating Systems

Question 1

Interrupt handling serves to:

Accepted Answer

Notify the OS of events requiring attention

Answer

Transfer data between devices

Answer

Optimize device performance

Answer

Handle memory-related issues

Question 2

For disk access, a commonly employed scheduling algorithm is:

Accepted Answer

First-Come First-Served (FCFS)

Answer

Short Job First (SJF)

Answer

Longest Job First (LJF)

Answer

Round Robin

Question 3

A performance metric used to measure I/O device efficiency is:

Accepted Answer

Both Throughput and Latency

Answer

Throughput

Answer

Latency

Answer

Utilization

Question 4

A virtual file system (VFS) enhances I/O management primarily by:

Accepted Answer

Providing a unified interface to different file systems

Answer

Improving file access performance

Answer

Enhancing data security

Answer

Reducing disk space usage

Question 5

The fundamental distinction between synchronous and asynchronous I/O is that:

Accepted Answer

Synchronous I/O blocks the caller until the operation completes, while asynchronous I/O does not

Answer

Asynchronous I/O is inherently faster than synchronous I/O

Answer

Synchronous I/O is exclusively used for file operations, while asynchronous I/O is used for device operations

Answer

Asynchronous I/O is more complex to implement than synchronous I/O

Question 6

Which of the following is the main purpose of interrupt handling in an operating system?

Accepted Answer

Directing execution to a specific function to process the event

Answer

Temporarily halting the current process to respond to an external event

Answer

Signaling the operating system that a device is available for data transfer

Answer

Forwarding event notifications to other devices in the system

Question 7

Which I/O scheduling algorithm aims to minimize the average time processes spend waiting for I/O operations?

Accepted Answer

Shortest Job First (SJF)

Answer

First-Come First-Served (FCFS)

Answer

Priority Scheduling

Answer

Round Robin

Question 8

Which technique is commonly used to reduce the overhead associated with frequent context switching during device interrupts?

Accepted Answer

Interrupt coalescing

Answer

Polling

Answer

Shared memory

Answer

Cache memory

Question 9

What is the purpose of a blocking I/O operation?

Accepted Answer

To suspend the calling process until the I/O operation completes

Answer

To continue executing the calling process while the I/O operation is in progress

Answer

To transfer data directly between the device and memory without CPU involvement

Answer

To prioritize the I/O operation over other processes

Question 10

What is the primary role of a buffer in input/output management?

Accepted Answer

To temporarily store data during transfer between devices and memory

Answer

To minimize the latency associated with I/O operations

Answer

To process interrupts generated by I/O devices

Answer

To schedule access to I/O devices among multiple processes

Question 11

Which file system allocation method provides the fastest access time for files of known size?

Accepted Answer

Contiguous allocation

Answer

Indexed allocation

Answer

Linked allocation

Answer

Scattered allocation

Question 12

What is the primary responsibility of a device driver?

Accepted Answer

Translate high-level I/O operations into device-specific commands

Answer

Manage memory allocation for I/O buffers

Answer

Handle device interrupts

Answer

Schedule access to I/O resources

Question 13

Which of the following is NOT a technique used to optimize I/O performance?

Accepted Answer

Thread synchronization

Answer

Buffering

Answer

Caching

Answer

RAID

Question 14

Which of the following interrupt handling techniques ensures that only one interrupt is processed at a time, preventing conflicts and data corruption?

Accepted Answer

Interrupt masking

Answer

Polling

Answer

Vectored interrupts

Answer

Daisy chaining

Question 15

Which device scheduling algorithm aims to minimize the average waiting time for I/O requests, improving system responsiveness?

Accepted Answer

Shortest Job First (SJF)

Answer

First-Come First-Served (FCFS)

Answer

Priority scheduling

Answer

Round-robin scheduling

Question 16

Which of the following techniques is NOT used to improve the performance of hard disk drives?

Accepted Answer

Fragmentation

Answer

Disk caching

Answer

RAID

Answer

Prefetching

Question 17

What is the primary difference between synchronous and asynchronous input/output operations?

Accepted Answer

Synchronous operations block the calling process until the I/O operation completes, while asynchronous operations do not.

Answer

Asynchronous operations block the calling process until the I/O operation completes, while synchronous operations do not.

Answer

Synchronous operations are always faster than asynchronous operations.

Answer

Asynchronous operations are always faster than synchronous operations.

Question 18

Which component is NOT directly involved in managing input and output devices?

Accepted Answer

Process scheduling

Answer

Device drivers

Answer

Interrupt handling

Answer

DMA controllers

Question 19

What is the main responsibility of a device driver?

Accepted Answer

Translate operating system requests into device-specific commands

Answer

Handle interrupts generated by the device

Answer

Schedule access to the device among multiple processes

Answer

Optimize device performance

Question 20

Which interrupt mode provides the quickest response to external events?

Accepted Answer

Edge-triggered interrupt

Answer

Polled interrupt

Answer

Level-triggered interrupt

Answer

Software interrupt

Question 21

What is the primary purpose of DMA (Direct Memory Access)?

Accepted Answer

Transfer data directly between I/O devices and memory, bypassing the CPU

Answer

Manage interrupts from I/O devices

Answer

Coordinate access to shared I/O resources

Answer

Enhance the performance of I/O operations

Question 22

In the context of I/O management, what ethical considerations should be prioritized to ensure responsible data handling and user privacy protection?

Accepted Answer

Organizations bear the primary responsibility to safeguard data from unauthorized access, alteration, or deletion.

Answer

Ethical considerations apply solely to personally identifiable information (PII).

Answer

Data security should take precedence over user convenience.

Answer

Ethical implications are irrelevant in I/O management.

Question 23

Which of the following tasks is NOT performed by a device driver?

Accepted Answer

Scheduling access to the device

Answer

Translating user requests into hardware-specific commands

Answer

Managing interrupts from the device

Answer

Providing an interface between the hardware and operating system

Question 24

What is the primary purpose of Direct Memory Access (DMA)?

Accepted Answer

To allow the transfer of data directly between devices, bypassing the CPU

Answer

To increase the frequency of interrupt handling

Answer

To improve the efficiency of memory allocation

Answer

To reduce the load on the I/O controller

Question 25

Which scheduling algorithm aims to minimize the average waiting time for I/O requests?

Accepted Answer

Shortest Job First (SJF)

Answer

First-Come First-Serve (FCFS)

Answer

Round Robin

Answer

Priority Scheduling

Question 26

What is the function of an interrupt handler?

Accepted Answer

To execute the code associated with an interrupt

Answer

To determine the source of an interrupt

Answer

To inform the CPU that an interrupt has occurred

Answer

To disable all other interrupts while an interrupt is being serviced

Question 27

What is the primary function of an I/O controller?

Accepted Answer

To manage the flow of data between the CPU and I/O devices

Answer

To handle interrupts and exceptions from I/O devices

Answer

To provide a graphical user interface for I/O interactions

Answer

To store data and programs for I/O devices

Question 28

In the context of I/O management, what is the role of a system call?

Accepted Answer

To allow user programs to request I/O services from the operating system

Answer

To handle hardware interrupts and exceptions

Answer

To manage memory allocation for I/O devices

Answer

To provide a text-based interface for I/O operations

Question 29

Which component is NOT involved in input/output management?

Accepted Answer

Caching management

Answer

Device drivers

Answer

Interrupt handling

Answer

Device scheduling

Question 30

What is the main purpose of a device driver?

Accepted Answer

To act as an intermediary between the operating system and hardware devices

Answer

To handle interrupts

Answer

To manage memory resources

Answer

To schedule I/O operations

Question 31

What is the primary function of Direct Memory Access (DMA)?

Accepted Answer

Allowing data transfer directly between memory and I/O devices

Answer

Prioritizing I/O operations

Answer

Detecting and correcting errors

Answer

Scheduling I/O requests

Question 32

Which device scheduling algorithm aims to minimize the average I/O operation waiting time?

Accepted Answer

Shortest Job First (SJF)

Answer

First-come, First-served (FCFS)

Answer

Round Robin

Answer

Priority Scheduling

Question 33

What is the primary purpose of an I/O request queue?

Accepted Answer

Storing I/O requests in the order they arrive

Answer

Prioritizing I/O requests based on importance

Answer

Handling interrupt requests from multiple devices

Answer

Scheduling I/O operations on the fastest device

Question 34

Which of the following tasks is NOT typically handled by an input/output (I/O) manager?

Accepted Answer

Data compression

Answer

Managing device drivers

Answer

Handling interrupts

Answer

Scheduling device access

Question 35

Which type of interrupt occurs when a device requires immediate attention from the CPU?

Accepted Answer

Hardware interrupt

Answer

Priority interrupt

Answer

Software interrupt

Answer

Vector interrupt

Question 36

What is the primary purpose of a device driver?

Accepted Answer

Providing a software interface between the operating system and hardware devices

Answer

Optimizing device performance through firmware updates

Answer

Managing interrupts related to the device

Answer

Translating data between different protocols

Question 37

Which DMA mode allows the I/O device to control the data transfer process, stealing cycles from the CPU?

Accepted Answer

Cycle stealing

Answer

Demand stealing

Answer

Burst mode

Answer

Block mode

Question 38

What is a primary benefit of using a layered architecture for input/output management?

Accepted Answer

Modularity and code reusability

Answer

Reduced interrupt latency

Answer

Simplified device configuration

Answer

Improved performance

Question 39

What is the main purpose of a disk controller?

Accepted Answer

Interfacing between the computer system and disk drives

Answer

Managing file system operations

Answer

Providing a graphical user interface for disk management

Answer

Encrypting data stored on disk

Question 40

Which of these is NOT a fundamental component of Input/Output Management?

Accepted Answer

Memory management

Answer

Interrupt handling

Answer

Device drivers

Answer

Direct Memory Access (DMA)

Question 41

What is the primary role of a device driver?

Accepted Answer

To provide a standardized interface between the operating system and a specific device.

Answer

To manage network communication between devices.

Answer

To control the flow of data between devices.

Answer

To allocate memory for devices.

Question 42

When a peripheral device needs the CPU's attention, it typically generates a(n):

Accepted Answer

Interrupt

Answer

Signal

Answer

System call

Answer

Exception

Question 43

Which I/O technique enables devices to transfer data directly to or from memory without CPU intervention?

Accepted Answer

Direct Memory Access (DMA)

Answer

Interrupt-driven I/O

Answer

Programmed I/O

Answer

Memory-mapped I/O

Question 44

When multiple devices are waiting to use a shared resource, what algorithm determines the order of service?

Accepted Answer

Device scheduling

Answer

Memory scheduling

Answer

File system scheduling

Answer

Process scheduling

Question 45

Which of the following is NOT a common metric used to evaluate I/O performance?

Accepted Answer

Cache size

Answer

Response time

Answer

Throughput

Answer

Latency

Question 46

What is the primary purpose of buffering in I/O operations?

Accepted Answer

To temporarily store data during transfers, improving efficiency and handling speed differences between devices.

Answer

To protect data from corruption during transmission.

Question 47

Which of these is a key advantage of using Direct Memory Access (DMA)?

Accepted Answer

Reduced CPU overhead for data transfers.

Answer

Increased memory access speed.

Answer

Enhanced security for data transfers.

Answer

Improved error detection capabilities.

Question 48

**Improved:** In the context of device drivers, what is the fundamental difference between a character device and a block device?

Accepted Answer

Character devices handle data as a continuous stream of bytes, while block devices operate on fixed-size blocks of data.

Answer

Block devices can only be used with magnetic storage devices.

Answer

Character devices are typically slower than block devices.

Question 49

**Improved:** Which of the following is the primary function of an input/output (I/O) device driver?

Accepted Answer

Translate commands between hardware and the operating system

Answer

Execute user commands directly.

Answer

Manage memory allocation for I/O operations.

Question 50

**Improved:** In an interrupt-driven I/O system, what action is triggered when a device requests service?

Accepted Answer

An interrupt signal is sent to the CPU, halting its current execution.

Answer

The CPU continuously monitors all devices for service requests.

Answer

The I/O device driver handles the request without involving the CPU.

Answer

The operating system polls the device for service requests.

Question 51

**Improved:** Which technique allows a device to transfer data directly to memory without CPU intervention?

Accepted Answer

Direct Memory Access (DMA)

Answer

Interrupt-driven I/O with polling

Answer

Programmed I/O with software control

Answer

Virtual Memory with paging

Question 52

**Improved:** Which scheduling algorithm prioritizes requests based on their arrival time, ensuring fairness?

Accepted Answer

First-Come, First-Served (FCFS)

Answer

Priority scheduling, where requests with higher priority are served first

Answer

Round-robin scheduling, where requests are served in a circular fashion

Answer

Shortest Job First (SJF), where requests with the shortest expected service time are prioritized

Question 53

**Improved:** Which file access method permits multiple processes to simultaneously access and modify the same file?

Accepted Answer

Shared access

Answer

Random access, where data can be accessed in any arbitrary order.

Answer

Exclusive access, where only one process can access the file at any given time.

Answer

Sequential access, where data is read or written in a strict order.

Question 54

**Improved:** Which I/O technique is employed for efficient transfer of large amounts of data?

Accepted Answer

Block I/O

Answer

Character I/O, where data is handled as individual characters.

Answer

Indexed I/O, where data is accessed using an index.

Answer

Direct I/O, where data is transferred directly between devices and memory.

Question 55

**Improved:** Which communication protocol is commonly utilized for network I/O operations?

Accepted Answer

TCP/IP

Answer

SMTP, which is specifically designed for email transmission.

Answer

HTTP, which is primarily used for web browsing.

Answer

FTP, which is used for file transfer over a network.

Question 56

**Improved:** Which factors can have a significant impact on the performance of I/O operations?

Accepted Answer

Device speed, driver efficiency, and available bandwidth.

Answer

The type of CPU used in the system is the only significant factor.

Answer

The number of users accessing the system is the only significant factor.

Answer

The amount of RAM in the system is the only significant factor.