Free Practice Quiz Question List

8 Input and Output Management Online Quiz Questions

Use this free practice quiz with 20 questions to review 8 Input and Output Management, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: With asynchronous I/O, a program can continue doing other work while an I/O operation is still in progress.

A
True
B
False

Choose one

1 point

Why does the operating system use layers to handle I/O requests?

A
It requires every application to issue device-specific hardware commands.
B
It provides programs with a consistent way to use different devices while drivers handle hardware-specific details.
C
It prevents the operating system from checking I/O requests.
D
It makes every I/O operation synchronous.

Written response

1 point

What is the term for accessing device registers through a region of address space?

Fill in the blank

1 point

Temporary memory that holds data while it moves between a program and a device is called a .

Choose one

1 point

A program requests that data be read from a particular device. Which component translates the general request into commands that device understands?

A
The operating system’s I/O subsystem, which translates requests into commands for every specific device.
B
A device driver, which translates general requests into commands the device understands and handles device-specific status and errors.
C
A buffer, which permanently stores every I/O request on disk.
D
An interrupt handler, which replaces the operating system’s I/O subsystem.

True or false

1 point

True or false: Polling can consume processing time even when the device has no new status to report.

A
True
B
False

Fill in the blank

1 point

A device transfers data to main memory without requiring the CPU to copy each byte. This transfer method is called .

Written response

1 point

What is the term for a signal a device sends to the processor when it needs attention?

Choose one

1 point

In the described file-read process, what happens after the file system identifies where the requested data is stored?

A
The storage driver requests that the file system identify where the data is stored.
B
The device retrieves the data before the operating system receives the file request.
C
The I/O subsystem passes the necessary request to the storage driver.
D
The application directly issues device-specific commands to the storage hardware.

Choose all

1 point

An interrupt handler should keep its immediate response short. Which actions fit that goal? Select all that apply.

A
Acknowledge or identify the event.
B
Perform all possible follow-up processing before returning.
C
Defer longer processing to a later context.
D
Keep the processor from resuming other work.

Choose all

1 point

A device has finished an I/O operation. Which statements describe possible operating-system or driver actions? Select all that apply.

A
The driver and OS record the operation’s status.
B
The OS makes returned data available to the requesting program.
C
The program is always notified in exactly the same way, regardless of operation type.
D
Errors can be reported through the OS’s I/O interfaces.

Choose one

1 point

An application requests data from a hardware device. Which action is part of the operating system’s I/O role?

A
The OS requires applications to send all device commands directly.
B
The OS checks and routes I/O requests and manages access permissions.
C
The OS translates every general request into device-specific commands instead of using drivers.
D
The OS guarantees that every device operation succeeds.

Open ended

1 point

Why should a device driver use operating-system-provided methods to access hardware registers instead of assuming one universal way to access them?

Choose one

1 point

Which component translates a general request, such as reading bytes, into commands a particular device understands?

A
A buffer
B
A device driver
C
A file system
D
An interrupt handler

Choose one

1 point

An application requests an operation on a hardware device. Which action best describes the operating system's role in handling that request?

A
The application directly operates the hardware and chooses its device-specific commands.
B
The device driver decides which application is permitted to request the operation.
C
The operating system checks and routes the request, managing access as needed.
D
The device performs the request before the operating system receives it.

Choose one

1 point

A system checks a device's status repeatedly, including when the device has no new information. Which approach is it using, and what is a likely cost?

A
The CPU repeatedly checks the device's status, using processing time even when there is no update.
B
The device pauses the CPU each time it checks whether the CPU is available.
C
The OS copies every byte from the device without CPU involvement.
D
The device reports its status only after the application queries the file system.

True or false

1 point

When an interrupt occurs, the handler should keep its immediate work brief and defer longer processing when possible.

A
True
B
False

Written response

1 point

What is the term for temporary memory that holds data while it moves between a program and a device?

Choose one

1 point

A device needs to transfer a large amount of data to main memory. Which mechanism can avoid requiring the CPU to copy each byte?

A
It lets the CPU avoid checking device status by using polling.
B
It converts a device's registers into a region of address space.
C
It routes application requests through the file system.
D
It transfers data between a device and main memory without the CPU copying each byte.

Written response

1 point

What is the name of the method in which a region of address space is used to access device registers?