DSST Introduction to Computing 5

Question 1

What does 'bandwidth' measure in a network?

Accepted Answer

The maximum amount of data that can be transmitted per unit of time

Answer

Bandwidth is the maximum rate of data transfer across a network path, typically measured in bits per second.

Question 2

Which of the following is a characteristic of cloud computing?

Accepted Answer

Computing resources are delivered on-demand over the internet

Answer

Cloud computing provides on-demand access to shared computing resources (storage, processing) via the internet.

Question 3

What is the purpose of data compression?

Accepted Answer

To reduce the size of data for efficient storage or transfer

Answer

Data compression reduces file size by encoding information more efficiently, saving storage space and speeding up transfers.

Question 4

Which of the following input devices converts physical documents into digital images?

Accepted Answer

Scanner

Answer

A scanner captures the visual information on a physical document and converts it into a digital image file.

Question 5

In database terminology, a 'primary key' is:

Accepted Answer

A unique identifier for each record in a table

Answer

A primary key uniquely identifies each row in a database table, ensuring no two records have the same key value.

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