C Programming Concepts Assessment

What is type casting in C?

• Type casting in C is a method for optimizing memory usage.

• Type casting in C is a way to declare new variables.

• Type casting in C is a process of debugging code.

• Type casting in C is converting a variable from one data type to another using a cast operator.

Explain the difference between implicit and explicit type casting.

• Implicit type casting can only be used with integers, while explicit type casting can be used with all data types.

• Implicit type casting requires user intervention, while explicit type casting is automatic.

• Implicit type casting is automatic and done by the system, while explicit type casting is manually specified by the programmer.

• Explicit type casting is done by the system, while implicit type casting is specified by the programmer.

What is the purpose of the 'if' statement in C?

• To define a function in C.

• To create loops in C.

• To declare variables in C.

• To execute code conditionally based on a boolean expression.

How does a 'switch' statement work in C?

• A 'switch' statement in C can only handle integer values.

• A 'switch' statement in C allows multi-way branching based on the value of an expression.

• A 'switch' statement in C is used for single-way branching only.

• A 'switch' statement in C evaluates conditions using boolean logic.

What is the syntax for a 'for' loop in C?

• for(initialization; condition; increment) { /* code to be executed */ }

• for(condition; increment) { /* code */ }

• for(initialization; increment) { /* code */ }

• for(initialization; condition) { /* code */ }

Describe the use of 'while' loops in C programming.

• 'while' loops are used for defining functions in C programming.

• 'while' loops are used to declare variables in C programming.

• 'while' loops are used for repeated execution of code as long as a condition is true, checking the condition before each iteration.

• 'while' loops execute code only once regardless of the condition.

What is the difference between 'break' and 'continue' statements?

• 'break' skips to the next iteration, while 'continue' exits the loop.

• 'break' and 'continue' both exit the loop without any further action.

• 'break' is used to pause the loop, while 'continue' restarts it.

• 'break' exits the loop, while 'continue' skips to the next iteration.

How do you declare a variable in C?

• declare ;

• : ;

• To declare a variable in C, use the syntax: ;

• = ;

What is the role of the 'else' statement?

• The 'else' statement is used to terminate a loop.

• The 'else' statement is used to declare variables.

• The 'else' statement is a way to define a function.

• The 'else' statement defines an alternative action when an 'if' condition is false.

Explain how nested loops function in C.

• Nested loops in C are used to create infinite loops without any exit condition.

• Nested loops in C allow for iterating over multi-dimensional data structures by placing one loop inside another.

• Nested loops in C can only be used with single-dimensional arrays.

• Nested loops in C are not allowed and will cause a compilation error.