ICAS Digital Technologies 3 — Questions and Answers
Question 1: What does the acronym 'URL' stand for?
- Universal Resource Locator
- Uniform Resource Locator (Correct answer)
- United Registry Link
- Unlimited Remote Location
Correct answer: Uniform Resource Locator
URL stands for Uniform Resource Locator, which is the address used to access resources on the internet.
Question 2: In a spreadsheet, which symbol typically begins a formula?
- #
- @
- = (Correct answer)
- &
Correct answer: =
In most spreadsheet applications such as Excel and Google Sheets, every formula begins with the equals sign (=).
Question 3: Which of the following best describes 'cloud storage'?
- Saving files on a USB flash drive
- Storing data on remote servers accessed via the internet (Correct answer)
- Printing documents for safekeeping
- Installing software on a local hard drive
Correct answer: Storing data on remote servers accessed via the internet
Cloud storage keeps data on remote servers maintained by a provider and lets users access it from any internet-connected device.
Question 4: What does the term 'bandwidth' refer to in networking?
- The physical width of a network cable
- The maximum rate of data transfer across a network (Correct answer)
- The number of connected devices
- The size of a web page
Correct answer: The maximum rate of data transfer across a network
Bandwidth is the maximum amount of data that can be transmitted over a network connection in a given time, usually measured in Mbps.
Question 5: Which programming concept allows a function to call itself?
- Iteration
- Recursion (Correct answer)
- Concatenation
- Compilation
Correct answer: Recursion
Recursion is when a function calls itself as part of its own definition, typically used to solve problems that can be broken into smaller sub-problems.
Question 6: A student receives an email asking for her password to 'verify her account.' This is MOST likely an example of:
- A software update notification
- A phishing attack (Correct answer)
- A legitimate security check
- Spam advertising
Correct answer: A phishing attack
Phishing attacks trick users into revealing passwords or personal information by pretending to be a trusted entity.
Question 7: In binary, what is the decimal value of 1010?
- 8
- 10 (Correct answer)
- 12
- 14
Correct answer: 10
Binary 1010 equals (1×8)+(0×4)+(1×2)+(0×1) = 8+2 = 10 in decimal.
ICAS Digital Technologies 3
What does the acronym 'URL' stand for?