ICAS Digital Technologies 4

Question 1

Which of the following is a primary function of an operating system?

Accepted Answer

Manage hardware resources and provide services to applications

Answer

An operating system manages the computer's hardware resources (CPU, memory, storage) and provides a platform for applications to run.

Question 2

What is the role of a 'compiler' in programming?

Accepted Answer

It translates the entire source code into machine code before running

Answer

A compiler translates the entire high-level source code into machine code (or an intermediate form) all at once before execution.

Question 3

Which network topology connects all devices in a single continuous ring?

Accepted Answer

Ring topology

Answer

In a ring topology, each device is connected to exactly two others, forming a closed loop for data to travel around.

Question 4

What does 'resolution' refer to when describing a digital image?

Accepted Answer

The number of pixels in the image

Answer

Image resolution refers to the number of pixels (picture elements) in an image, often expressed as width × height (e.g., 1920×1080).

Question 5

In HTML, which tag is used to create a hyperlink?

Accepted Answer

<a>

Answer

The <a> (anchor) tag creates hyperlinks in HTML, using the href attribute to specify the destination URL.

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