Technical Quiz R2

What are the basic data types in C?

• string, boolean, list, map

• byte, short, long, float

• integer, decimal, character, null

• int, float, double, char, void

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

• To declare variables in C.

• To define a function in C.

• To create loops in C.

• To execute code conditionally based on a boolean expression.

Explain the difference between 'while' and 'for' loops.

• The main difference is that 'while' loops are condition-based and can run indefinitely, while 'for' loops are count-based and run a specific number of times.

• 'For' loops can run indefinitely while 'while' loops cannot.

• 'While' loops require a specific number of iterations to execute.

• 'While' loops are always faster than 'for' loops.

What is a function in C and how is it defined?

• A function in C is a built-in command that does not require a return type.

• A function in C is a reusable block of code defined with a return type, name, and parameters.

• A function in C is a single line of code that cannot take parameters.

• A function in C is a type of variable that stores data.

What is recursion and how does it work in C?

• Recursion in C is a method where a function calls itself to solve smaller instances of a problem, using base and recursive cases.

• Recursion in C is a method where a function runs in a loop until a condition is met.

• Recursion in C is when a function is called by another function without any conditions.

• Recursion is a technique that involves using global variables to store intermediate results.

How do you pass parameters to a function in C?

• You pass parameters by defining them in the function signature and providing arguments during the function call.

• Parameters are passed automatically without any declaration.

• You pass parameters by using global variables.

• You can only pass parameters by reference in C.

What is the return type of a function in C?

• The return type can be any valid data type or 'void'.

• Functions cannot have a return type in C.

• The return type must always be an integer.

• The return type can only be a pointer type.

What is the significance of the 'break' statement in loops?

• The 'break' statement allows for looping through an array without conditions.

• The 'break' statement allows for immediate termination of a loop.

• The 'break' statement pauses the loop for a specified time.

• The 'break' statement skips the current iteration of the loop.

How can you create a recursive function to calculate factorial?

• def factorial(n): return n * factorial(n - 1)

• def factorial(n): return 0 if n == 0 else n + factorial(n - 1)

• def factorial(n): return n if n > 0 else 1

• def factorial(n): return 1 if n == 0 else n * factorial(n - 1)

What is the purpose of the 'return' statement in a function?

• The 'return' statement is used to exit a function and optionally return a value to the caller.

• The 'return' statement is used to declare a function.

• The 'return' statement is used to create a loop within a function.

• The 'return' statement is used to define global variables.