Explanation

A scanner is a device that captures images from:

• photographic prints
• posters
• magazine pages 
• similar sources for computer editing and display. 
  

Explanation

The spiral model has four phases:

1. Planning,
2. Design,
3. Construct,
4. and Evaluation.

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ND03-12-2022

Explanation

The most common technique to change an analog signal to digital data is called pulse code modulation (PCM). A technique used by codes to convert an analog signal into a digital bit stream is known as Pulse code modulation.

Explanation

Phishing is a network attack where attackers attempt to obtain sensitive information like usernames, passwords, or credit card details by pretending to be a trustworthy entity.

It often involves misleading emails or fake websites designed to trick users into revealing their personal information.

Explanation

Explanation

In computer programming, a macro (short for "macro instruction") is a rule or pattern that specifies how a certain input should be mapped to a replacement output.

Applying a macro to an input is known as macro expansion.

Explanation

The algorithm used in Artificial Intelligence to analyze and understand natural language is Natural Language Processing (NLP).

NLP encompasses techniques and models designed to process and interpret human language data.

Explanation

Hub and switch are used in network topology.

They are devices that connect multiple network devices.

They facilitate communication within a network.

Explanation

In the statement scanf("%d", &kilometer);, kilometer is considered a variable because:

• Declaration:

Before this statement, kilometer must have been declared as a variable

• Address of Operator:

The & operator in &kilometer is the address-of operator.

It provides the memory address of the variable kilometer to the scanf function.

• Variable Usage:

Variables are used to store data that can be modified during program execution.

Explanation

A nested loop has one loop inside of another.

These are typically used for working with two dimensions such as printing stars in rows and columns as shown below.

When a loop is nested inside another loop, the inner loop runs many times inside the outer loop.