C# Switch Statement Quiz

Welcome to the C# Switch Statement Quiz! This quiz is designed to test your knowledge of how switch statements work in C# and how they compare to if…else if constructs. You’ll explore key concepts such as case statements, the default case, switch expressions, and the use of break, goto, and continue within switch statements. Each question will help reinforce your understanding of how to implement efficient control flow using switch statements in C#.

What is the governing value in a switch statement?

A constant value returned by the switch statement.

The value or expression that is tested against the case constants.

The result of all case statements combined.

The value that appears in the default case.

None

What is the role of a case statement in a C# switch construct?

To handle any unmatched values.

To declare new variables.

To specify a possible match for the governing value.

To terminate the switch statement.

None

What happens when a break statement is used inside a switch case?

It exits the switch statement, preventing the execution of other cases.

It jumps to the default case.

It causes the program to terminate.

It skips the current case and evaluates the next case.

None

What is the purpose of the default case in a switch statement?

To handle situations where no other case matches the governing value.

To declare variables for the switch statement.

To ensure that the switch statement runs at least once.

To perform an action after every case has been checked.

None

How does grouping case statements work in a switch statement?

Case statements must be unique and cannot share code.

You cannot group case statements in C#.

Each case statement requires its own break statement.

Multiple case constants can share the same set of statements.

None

What is the output of the following switch statement if carModel = 'Focus'?

switch (carModel) {
 case 'Patriot': 
 case 'Liberty': 
 carManufacturer = 'Jeep'; 
 break;
 case 'Focus':
 carManufacturer = 'Ford';
 break;
 default: carManufacturer = 'unknown';
 break;
}

‘Jeep’

The code will not compile.

‘Ford’

‘unknown’

None

What does the switch expression syntax in C# allow?

It allows you to skip the break statement in a switch.

It allows switching between different methods in C#.

It simplifies the switch statement by using expressions instead of multiple case blocks.

It automatically optimizes the switch statement.

None

How is the default case represented in a switch expression?

else => default_statement

_ => default_statement

case default => default_statement

default => default_statement

None

What happens if you forget to include a break statement in a switch case?

The next case statement will execute, regardless of whether it matches.

The switch will always jump to the default case.

The program will throw a runtime error.

The switch statement will automatically stop after the first match.

None

10.

What is the purpose of the goto statement in a C# switch construct?

To prevent the switch statement from executing.

To skip the current case and go to the next one.

To jump to another part of the code or the default case.

To terminate the program.

None

11.

Why is using the goto statement generally discouraged in modern C# programming?

It always causes a runtime error.

It makes the code harder to understand and maintain.

It increases the memory usage of the program.

It is illegal in object-oriented languages.

None

12.

What is the effect of using the continue statement in a switch statement that is part of a loop?

It skips the remaining code in the current loop iteration and moves to the next iteration.

It breaks out of the loop.

It stops the switch statement from executing.

It causes an error.

None

13.

What is the main advantage of using a switch expression over a traditional switch statement?

It eliminates the need for variables.

It can handle more data types than a switch statement.

It provides a more concise and readable code structure.

It runs faster than a switch statement.

None

14.

What happens when none of the case values match the governing value in a switch statement, and there is no default case?

The first case is executed by default.

Nothing happens; the switch statement is skipped.

The switch statement enters an infinite loop.

The program throws a runtime error.

None

15.

Which of the following can be used inside a switch statement to jump out of it?

goto

return

continue

break

None