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Operating Systems Fundamentals > PRELIM REVIEWER > Flashcards

PRELIM REVIEWER Flashcards

1
Q

What is another kind of memory that is critical when the computer is powered on?

A

Read Only Memory (ROM)

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2
Q

Which of the operating system managers is responsible for starting the operation of a printer?

A

Device manager

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3
Q

Which of the following is not the function of Operating System?

A

Clock Management

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4
Q

By providing this service the operating system relieves the user of the worry of passing messages between processes

A

Communications

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5
Q

What is the difference between a primary storage and a secondary storage?

A

Main memory is sometimes called the primary storage while secondary storage is where data is stored on hard disk.

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6
Q

What controls Random Access Memory on a computer?

A

Operating System

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7
Q

What happens when the space of the operating system in the memory has not been protected?

A

System will crash or stops functioning properly and exits

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8
Q

Is ROM volatile?

A

False

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9
Q

Read only memory chip holds what type of software?

A

Firmware

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10
Q

You just turned on your computer and have yet started any application. Which software is currently inside the random access memory?

A

Operating system

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11
Q

Which among the operating system managers protects the space of the operating system in the memory?

A

Memory manager

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12
Q

Which software is responsible for the different computer system resources?

A

Operating system

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13
Q

Which of the operating system managers is responsible for enforcing restrictions on who has access to which files?

A

File manager

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14
Q

A user sends a print job to a printer. But the printer did not print anything. What is the responsibility of the operating system in this situation?

A

Provide an exact error message to the user.

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15
Q

An operating system service that is provided to the user whenever the user issues a command

A

Program execution

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16
Q

This operating system contains no permanent data storage devices to be managed.

A

Distributed

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17
Q

Type of OS allow more than one user to make use of the operating system resources at the same time?

A

Networked

18
Q

When the operating system stores data into the computer’s RAM and manipulates the data, the operating system is said to be doing what?

A

The OS is using the CPU to perform on the data

19
Q

Which of the following computer characteristics refers to the ability of the computer to perform a variety of tasks?

A

Versatility

20
Q

The following are operating system services except for:

A

Accountant

21
Q

Batch OS

A

Computer operators

22
Q

Time-sharing OS

A

Time quantum

23
Q

Distributed OS

A

Consists of CPU and memory

24
Q

Networked OS

A

Client and Server

25
Q

Real-time OS

A

Quick Response Time

26
Q

First generation

A

Large amount of heat and unreliable

27
Q

Second generation

A

IBM 1401

28
Q

Third generation

A

First time use of mouse and keyboard

29
Q

Fourth generation

A

Foundation of the internet

30
Q

Fifth generation

A

Present Generation

31
Q

A memory allocation scheme in which jobs are given as much memory as they request when they are loaded for processing, thus creating their own partitions in main memory.

A

Dynamic

32
Q

Which of the following memory management schemes allows memory to be allocated to only one program (or job) at a time?

A

Single-user contiguous scheme

33
Q

In this scheme, the memory manager relocates all the free partitions

A

Relocatable dynamic allocation

34
Q

Which of the following memory management schemes does not allow multiprogramming?

A

Single-user contiguous scheme

35
Q

Is the process of freeing an allocated resource, like memory space

A

deallocation

36
Q

What is the issue of relocatable dynamic allocation?

A

Overhead

37
Q

Which of the following are the disadvantages of a fixed partition scheme?

A

If the partition sizes are too big, memory is wasted

Requires that the entire program be stored contiguously in the memory

38
Q

Why do you need System Calls in OS?

A 
File Manipulation
Process Control
Device Management
Information Maintenance
Communications
39
Q

First-fit memory allocation

A

first partition fitting the requirements

40
Q

Best-fit memory allocation

A

smallest partition fitting the requirements

41
Q

Worst-fit

A

allocates largest free available block to new job

Operating Systems Fundamentals (1 decks)

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