CSC126_Quiz5: Chapter 3

What is the primary purpose of selection control structures in C++?

• To execute different statements based on conditions

• To define data types

• To repeat statements based on conditions

• To execute statements in a sequence

Which of the following is NOT a type of selection control structure in C++?

• if

• loop

• if-else

• switch

What does a Boolean expression evaluate to?

• A string

• True or false

• A character

• An integer

Which operator is used to combine two Boolean expressions?

• Relational operator

• Logical operator

• Arithmetic operator

• Bitwise operator

In a two-way if-else selection structure, what happens if the condition is false?

• The first statement is executed

• The condition is re-evaluated

• The program terminates

• The second statement is executed

What is the correct syntax for a one-way if selection statement?

• if expression then statement;

• if (expression) { statement; }

• if (expression) statement else statement;

• if (expression) statement;

Which of the following is an example of a compound Boolean expression?

• 10 > 5

• x == y

• (10 > 5) && (10 < 6)

• a != b

What does the break statement do in a switch structure?

• Ends the program

• Re-evaluates the expression

• Exits the switch structure

• Continues to the next case

How are strings compared in C++ using relational operators?

• By their memory addresses

• By their ASCII values

• Character by character

• By their length

What is the purpose of short-circuit evaluation in logical expressions?

• To evaluate all expressions

• To stop evaluation once the result is known

• To ignore parentheses

• To evaluate from right to left