ICAS Digital Technologies 2

Question 1

Which file format is best suited for storing a large database of student records that needs to be opened by many different programs?

Accepted Answer

CSV

Answer

CSV (Comma-Separated Values) is a plain-text format readable by almost any spreadsheet or database program.

Question 2

A student wants to protect her Wi-Fi network from unauthorized users. Which action is MOST effective?

Accepted Answer

Use WPA2 encryption with a strong password

Answer

WPA2 encryption combined with a strong password is the industry-standard method for securing a wireless network.

Question 3

In programming, what does an 'infinite loop' cause?

Accepted Answer

The program repeats forever without stopping

Answer

An infinite loop has a condition that never becomes false, so the loop body executes repeatedly without end.

Question 4

Which of the following is an example of OUTPUT from a computer?

Accepted Answer

Sound played through speakers

Answer

Speakers produce sound that comes out of the computer, making them an output device.

Question 5

What is the purpose of a firewall in a computer network?

Accepted Answer

To block unauthorized access while permitting authorized traffic

Answer

A firewall monitors incoming and outgoing network traffic and blocks connections that do not meet defined security rules.

(ICAS) ICAS Practice Test