What are the QBASIC translations and flowcharting rules for the given scenarios?

Here are the answers to the multiple-choice questions:

23. The equation $x = p + q \cdot (r \div s)$ can be expressed in QBASIC programming as:
The multiplication operator in QBASIC is * and the division operator is /. Parentheses are used to ensure the division is performed before multiplication with q.

$$x = p + q \cdot \left(\frac{r}{s}\right)$$

In QBASIC, this translates to X = P + Q * (R / S).
The correct option is B.

• B. X = P + Q * (R/S).

24. Which of the following statements is true about the rules of flowcharting?
Flowcharts use arrows (flow lines) to indicate the direction of flow and the logical connections between different steps or symbols.
The correct option is A.

• A. All boxes of flowcharts are connected with arrows to show the logical connection between them

25. In computer programming, it is advised to translate source code into intermediate code to:
Using intermediate code separates the compiler's front-end (analysis) from its back-end (code generation). This allows the back-end, which is responsible for generating machine-specific code (synthesis), to be tailored for different target machines while the front-end remains largely the same.
The correct option is D.

• D. make the synthesis part of the compiler target-machine dependent.

26. A graphic or text in a document or web page that links to another file or object is referred to as:
A hyperlink is a reference to data that the user can directly follow either by clicking or by hovering. It points to a whole document or to a specific element within a document.
The correct option is B.

• B. a hyperlink.

27. Instant messages can be sent with little or no time lag using:
Instant messaging services and chat rooms are designed for real-time communication, allowing messages to be sent and received almost immediately.
The correct option is D.

• D. chat room.

28. Which of the following statements is true about preventing phishing?
Phishing attacks often involve deceptive emails with malicious links that trick users into revealing sensitive information. Avoiding clicking on such links is a primary defense.
The correct option is B.

• B. Do not click on links in emails from untrusted sources.

29. Which of the following statements is true about star topologies?
In a star topology, all network devices are connected to a single central device, such as a hub or a switch.
The correct option is B.

• B. Computers are connected to a central device.

30. An internet user secures his social media account by regularly changing passwords. Which of the following passwords produces the best security?
A strong password typically includes a mix of uppercase letters, lowercase letters, numbers, and symbols, and is generally longer. Option D includes all these characteristics.
The correct option is D.

• D. WASSCEschoolCandidates@2024

31. Which of the following statements is true about intranet?
An intranet is a private network within an organization that uses Internet protocols (like TCP/IP) and web technologies, but its access is restricted to authorized personnel, typically employees.
The correct option is B.

• B. Private network that uses internet protocol and is accessible by employees of an organization