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Decision Making using If Statement

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Questions and Answers

What is the purpose of the 'if' statement in decision making?

Always execute the statement block after 'if'

Repeat a group of statements

Execute a statement block when a test expression is true (correct)

Execute a statement block when a test expression is false

In decision making, what type of statement is the 'if-else' statement?

One-way decision statement

Two-way decision statement (correct)

Three-way decision statement

Unconditional statement

How does the 'if-else' statement differ from the 'if' statement in decision making?

If-else has more than two condition checks

'If' statement is used for nested conditions

If-else has an 'else' block for false conditions (correct)

If-else always executes both blocks

What is necessary for an 'if-else' statement to execute the 'else' block?

'If' condition must be false (C) Signup and view all the answers

What kind of decision-making scenario can be handled by nested if-else statements?

'if-else' with multiple conditions (D) Signup and view all the answers

In nested if-else statements, what happens if the condition in 'if (test expression1)' is false?

'statement block2' is executed (B) Signup and view all the answers

'If' statements are primarily used for:

'If a condition exists, then do this action' (C) Signup and view all the answers

What will be the output of the first code snippet if the user inputs var1 as 10 and var2 as 10?

var1 is equal to var2 (C) Signup and view all the answers

In the second code snippet, what is the value of 'grade' if a user enters 45 for 'marks'?

third (B) Signup and view all the answers

What does the ternary operator in the third code snippet do?

Checks if age is greater than or equal to 18 and prints 'You can vote' (A) Signup and view all the answers

In the fourth code snippet, what happens when the user enters a negative number for 'num'?

The program goes into an infinite loop (A) Signup and view all the answers

How many operands does the ternary operator take?

3 (C) Signup and view all the answers

Which statement best describes the usage of a 'goto' statement in C programming?

'goto' should be avoided due to its complexity in code readability (A) Signup and view all the answers

If a user enters 73 for 'marks' in the second code snippet, what will be the output for 'grade'?

'fail' (C) Signup and view all the answers

What happens if a user doesn't input any value for 'marks' in the second code snippet?

'fail' is assigned to 'grade' (C) Signup and view all the answers

What does the statement 'case 10: case 9: case 8: case 7: case 6: grade="first";' mean in the second code snippet?

'grade' will be assigned 'first' only if marks are between 6 and 10 (A) Signup and view all the answers

'case value-1 block-1 break;' represents which control structure in C programming?

'switch-case statement' (B) Signup and view all the answers