JHS 1,2 & 3 ICT QUIZ On OS

2.

The FIFO algorithm

Executes first the job that last entered the queue
executes first the job that first entered the queue
execute first the job that has been in the queue the longest
Executes first the job with the least processor needs

Correct Answer

A. executes first the job that first entered the queue

Explanation

The correct answer is "executes first the job that first entered the queue". The FIFO algorithm stands for "First In, First Out", which means that the job that entered the queue first will be executed first. This algorithm follows a simple rule of processing jobs in the order they arrive, without considering any other factors such as priority or processor needs.

Rate this question:

3.

What is the name given to the organized collection of software that controls the overall operation of a computer?

Working system
Peripheral system
Operating system
Controlling system

Correct Answer

A. Operating system

Explanation

An operating system is the organized collection of software that controls the overall operation of a computer. It manages the computer's hardware and software resources, provides a user interface, and allows applications to run on the computer. The operating system is responsible for tasks such as memory management, file system management, process management, and device management. It acts as an intermediary between the user and the computer hardware, ensuring that all the different components of the computer work together smoothly.

Rate this question:

4.

While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

DISKCOPY
COPY
RENAME
FORMAT

Correct Answer

A. COPY

Explanation

The correct answer is COPY. The COPY command in MS-DOS is used to transfer files from one disk to another. It allows users to copy files and directories from one location to another, including between different disks. This command is useful for backing up files, creating duplicates, or simply moving files to a different disk for organization or storage purposes.

Rate this question:

5.

Bug means

A logical error in a program
A difficult syntax error in a program
Documenting programs using an efficient documentation tool
All of the above

Correct Answer

A. A logical error in a program

Explanation

The correct answer is "A logical error in a program." This means that a bug refers to a mistake or flaw in the logic or reasoning of a program, which results in incorrect or unexpected behavior. It is different from a syntax error, which is a mistake in the code structure or syntax. The other options, documenting programs using an efficient documentation tool and all of the above, are not accurate definitions of a bug.

Rate this question:

6.

An algorithm is best described as

A computer language
A step by step procedure for solving a problem
A branch of mathematics
All of the above

Correct Answer

A. A step by step procedure for solving a problem

Explanation

An algorithm is best described as a step-by-step procedure for solving a problem. It is a set of instructions or rules that guide the computer in performing a specific task. Algorithms can be written in various programming languages, but they are not limited to a specific computer language. Additionally, while algorithms involve mathematical concepts and principles, they are not solely a branch of mathematics. Therefore, the correct answer is "A step by step procedure for solving a problem."

Rate this question:

7.

Trojan-Horse programs

Are legitimate programs that allow unauthorized access
Do not usually work
Are hidden programs that do not show up on the system
usually are immediately discovered

Correct Answer

A. Are legitimate programs that allow unauthorized access

Explanation

Trojan-Horse programs are legitimate programs that appear harmless but actually allow unauthorized access to a system. They deceive users by disguising themselves as harmless software, tricking them into downloading or installing them. Once installed, these programs can give hackers remote access to the system, enabling them to steal sensitive information, control the system, or carry out malicious activities without the user's knowledge. These programs are a significant threat to cybersecurity as they exploit users' trust and can cause significant damage if not detected and removed.

Rate this question:

8.

When did IBM release the first version of disk operating system DOS version 1.0?

1981
1982
1983
1984

Correct Answer

A. 1981

Explanation

IBM released the first version of disk operating system DOS version 1.0 in 1981.

Rate this question:

9.

Which of the following is false about disk when compared to main memory?

non-volatile
Longer storage capacity
lower price per bit
Faster

Correct Answer

A. non-volatile

Explanation

The statement "non-volatile" is false when comparing disk to main memory. Disk is a non-volatile storage medium, meaning that it retains data even when power is lost. In contrast, main memory (RAM) is a volatile storage medium, meaning that it loses data when power is lost.

Rate this question:

1

10.

Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because

They are memory resident
They are initially stored on disk
They are available on magnetic tapes
They are partly in primary memory and partly on disk

Correct Answer

A. They are initially stored on disk

Explanation

Microcomputer operating systems like Apple DOS, MS DOS, and PC DOS are called disk operating systems because they are initially stored on disk. This means that when the computer starts up, the operating system is loaded from the disk into the computer's memory. Once loaded, the operating system can then manage the computer's hardware and software, allowing the user to interact with the system and run various programs. Storing the operating system on disk allows for easy installation and updates, as well as efficient use of memory resources.

Rate this question:

Jhs 1,2 & 3 ICT Quiz On OS

Memory

Quiz Preview

The FIFO algorithm

What is the name given to the organized collection of software that controls the overall operation of a computer?

While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

Bug means

An algorithm is best described as

Trojan-Horse programs

When did IBM release the first version of disk operating system DOS version 1.0?

Which of the following is false about disk when compared to main memory?

Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because