CSI U5L2 - Sequence & Selection

Which of the following best describes the concept of "selection" in programming?

• Executing statements in a sequential order without any conditions.

• Evaluating a condition and branching to different sections of code based on whether the condition is true or false.

• Repeating a block of code multiple times until a condition is met.

• Storing a value into a variable.

In the pseudocode example provided, what is the purpose of the "else" statement?

• To execute a block of code when the "if" condition is true.

• To execute a block of code when the "if" condition is false.

• To repeat a block of code until a condition is met.

• To declare a variable.

Consider the following pseudocode: ``` IF num1 > num2 THEN larger = num1 ELSE larger = num2 ``` What will be the value of `larger` if `num1` is 5 and `num2` is 8?

• 5

• 8

• 0

• 13

Which logical operator would you use to check if both conditions are true in an "if" statement?

• OR

• AND

• NOT

• XOR

In a flowchart, what shape is typically used to represent a decision point?

• Rectangle

• Oval

• Diamond

• Parallelogram

Given the following pseudocode, what will be the output if `angleA = 60`, `angleB = 60`, and `angleC = 60`? ``` sum = angleA + angleB + angleC IF sum = 180 AND angleA ≠ 0 AND angleB ≠ 0 AND angleC ≠ 0 THEN OUTPUT "Valid triangle" ELSE OUTPUT "Not a triangle" ```

• Valid triangle

• Not a triangle

• Error

• 180

Which of the following is a relational operator used to compare two values?

• +

• ==

• &&

• ||

In the context of decision tables, what is the primary purpose of simplifying the table?

• To add more conditions to the table.

• To make the table more complex.

• To reduce redundancy and simplify logic.

• To increase the number of actions.

Adil wrote code to control a toy robot. Adil was ___________ the computer to move round the room.

• Programming

• Shaping

• Colouring

• Drawing

What will be the output of the following Java program?

class selection_statements {

public static void main(String args[]) {

int var1 = 5; int var2 = 6;

if ((var2 = 1) == var1)

System.out.print(var2);

else

System.out.print(++var2); } }

• 1

• 3

• 2

• 5