Which of the following below is NOT an example of an operating system ?

Android family of operating systems

Which of the following is NOT part of the hardware services and software services management function of the operating system ?

The ability of the computer to raise an alert when a word is wrongly spelt by a user when using a word processor

The ability of the computer to enable the data transfer speed between the USB memory stick and the USB port to be adjusted automatically

The ability to ensure that appropriate software instructions can only be executed within the allowable context

The ability to restrict the execution of supervisory commands only to authorized or admin users

The concept of a GUI comes from _____.

the Apple Macintosh operating system

What is a graphical user interface?

A computer display with mouse-clickable icons.

A software program for writing text.

A graphic design software program.

None of these answers is correct.

What is the purpose of a terminal emulator software?

It creates a terminal interface to a mainframe system that runs within the regular operating system of a desktop computer.

It makes the desktop of your computer look like an old-fashioned black and white monitor.

It uses a command line interface to interact with remote computer systems.

It establishes access from multiple terminals to the same central computer system.

It shows multiple views from different video cameras on a single computer screen.

You work for a company that utilizes multiple types of computer operating systems and devices. The IT department needs to manage multiple platforms effectively for all users. What would you need to do in order to make this happen?

Purchase an enterprise level OS to run varying platforms.

Inform employees that a standard operating system is necessary.

Survey employees to determine the most popular platform.

Connect similar computers and devices to a dedicated server.

Which of the following best describes the role of a system administrator?

They are responsible for the operation and configuration of multi-use computers.

They install software for computers users in an organization.

They build a network for an organization to connect all the computers.

They prevent computer viruses from gaining access to a computer system.

Acquires hardware and software for an organization

Computer software is _____.

programming code executed on a computer processor

access code executed on a software program

The architectural structure of a layered operating system resembles a _____.

None of these answers are correct.

An operating system is _____.

All of these answers are correct.

A means to control devices like memory

A means to perform underlying computer functions

A _____ groups together related underlying computer functionality.

None of these answers are correct.

What type of relationship do cooperating processes have with other processes in a system?

They can both affect and be affected by other processes in the system.

They are never affected by the other processes in the system.

They can affect but never be affected by other processes in the system.

They never share their data with other processes and systems.

What happens in the producer-consumer cooperation problem?

The producer and consumer processes run concurrently, given a shared buffer.

The producer adds data to the buffer while the consumer removes it.

The consumer adds data to the buffer while the producer removes it.

The producer and consumer function independently of each other without benefit of a buffer.

Concurrency can best be described as which of the following?

It appears that processes are running simultaneously.

It is equivalent to parallelism.

It is another term for mutual exclusion of processes.

It is the simultaneous execution of multiple processes.

Mutual exclusion can best be described as what?

Blocking processes from being updated simultaneously

Parallel processing and simultaneous updates

Deleting processes that take too long

Which of the following is a drawback to the Round Robin scheduling policy?

Each job gets equal access to CPU

Throughput is increased due to switching

In multi-threading, multiple threads share which of the following?

Data, code, stack, and registers

Which of these statements about cache memory is not true?

CPUs have cache hits and cache misses.

A bigger CPU cache improves speed.

The information in a CPU cache is a duplicate of information stored elsewhere.

Which of the following is true of a bit in data storage?

Bit is an alternative spelling for byte.

A bit can be any of 256 possible combinations.

IT - Mobile OS

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Computers

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Professional Development

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Easy

samuel holmes

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The application where you purchase new games and software.

The programming behind the computer you use.

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