Computer Science Multiple Choice Questions

Computer Science Multiple Choice Questions

Professional Development

50 Qs

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Computer Science Multiple Choice Questions

Computer Science Multiple Choice Questions

Assessment

Quiz

World Languages

Professional Development

Practice Problem

Hard

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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of all switching time in an operating system?

Measure the performance of user programs and re-calculate them

Detect system crashes and re-start the system if necessary

Schedule tasks on account of predetermined real-time intervals

Manage memory allocation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the time taken to move the arm to the proper cylinder is called?

Seek time

Practice delay

Rotational delay

Transfer time

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a responsibility of Device-Independent I/O Software layer?

C. Providing a device-independent block size

D. Assigning error numbers to I/O devices

A. Uniform interfacing for device drivers

E. Error handling

B. Allocating and releasing dedicated devices

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which I/O mode is most suitable for transferring data between memory and I/O devices without the CPU being bothered?

Direct Memory Access

Programmed I/O

Interrupt-driven I/O

Polling

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Blu-ray discs are examples of which type of I/O device?

Block device

Disk device

Hard device

Character device

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In DMA transfer cycles, what is the form of operation called when the DMA controller tells the device to separate the data transfer into a block of N bytes, and then repeats the form?

Fly-by mode

Word-at-a-time mode

Burst mode

Caching mode

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two types of I/O devices roughly?

Block devices and sequence devices

Block devices and character devices

Character devices and circuit devices

Character devices and digital devices

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