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web.groovymark@gmail.com
- December 17, 2024
Question 01
What is a branch in programming?
a) A sequence of statements executed under a certain condition
b) A list of functions in a program
c) A variable declaration
d) A program ending statement
Correct Answer: a) A sequence of statements executed under a certain condition
Explanation: A branch is a sequence of statements in a program that only executes when a specific condition is met, typically within an "if" or "else" block.
Question 02
What is a decision in a flowchart?
a) A process of writing functions
b) A graphical representation of loops
c) A choice between two branches based on a condition
d) A sequence of calculations
Correct Answer: c) A choice between two branches based on a condition
Explanation: In a flowchart, a decision creates two branches, where one branch executes if the condition is true and the other if it is false.
Question 03
What is an if-else branch?
a) A loop with two iterations
b) A branch that always executes
c) A decision structure where one branch executes if the condition is true and the other if false
d) A function call
Correct Answer: c) A decision structure where one branch executes if the condition is true and the other if false
Explanation: An if-else branch allows a program to choose between two paths depending on whether the condition evaluates to true or false.
Question 04
What is the symbol for the equality operator?
a) !=
b) ==
c) >
d) >=
Correct Answer: b) ==
Explanation: The equality operator (==) checks if two values are the same.
Question 05
What is a relational operator?
a) A symbol that assigns values to variables
b) A symbol that relates two values, such as being greater than or less than
c) A loop structure
d) A type of function
Correct Answer: b) A symbol that relates two values, such as being greater than or less than
Explanation: Relational operators compare two values to determine their relationship, such as greater than, less than, or equal to.
Question 06
What does the logical AND operator (&&) do?
a) It returns true when both operands are true
b) It returns true when one operand is false
c) It negates the value of both operands
d) It compares strings
Correct Answer: a) It returns true when both operands are true
Explanation: The logical AND operator (&&) evaluates to true only if both operands are true.
Question 07
What does the logical OR operator (||) do?
a) Returns true only if both operands are false
b) Returns true if at least one operand is true
c) Always returns false
d) Compares two strings
Correct Answer: b) Returns true if at least one operand is true
Explanation: The logical OR operator (||) returns true if either one or both operands are true.
Question 08
What does the logical NOT operator (!) do?
a) It switches a true value to false, and vice versa
b) It multiplies two operands
c) It checks equality between two operands
d) It increments a variable
Correct Answer: a) It switches a true value to false, and vice versa
Explanation: The logical NOT operator (!) inverts the boolean value, turning true into false and false into true.
Question 09
What is a decision sequence in programming?
a) A set of loops
b) A series of actions performed in a set order
c) A variable declaration
d) A condition for terminating a program
Correct Answer: b) A series of actions performed in a set order
Explanation: A decision sequence is a series of conditional actions that follow one another in a predefined order.
Question 10
What are logical operators used for?
a) To perform mathematical calculations
b) To compare boolean values and evaluate to true or false
c) To define functions
d) To declare variables
Correct Answer: b) To compare boolean values and evaluate to true or false
Explanation: Logical operators (like AND, OR, and NOT) are used to evaluate boolean expressions and return true or false.
Question 11
What happens in a ‘while’ loop?
a) The loop executes until the condition is false
b) The loop runs for a fixed number of iterations
c) The loop executes only once
d) The loop executes a function
Correct Answer: a) The loop executes until the condition is false
Explanation: A while loop repeatedly executes the loop body as long as the condition remains true.
Question 12
What is a sentinel value in a loop?
a) A value that continues the loop indefinitely
b) A special value that indicates the end of a list
c) A condition to start the loop
d) A variable used in the loop
Correct Answer: b) A special value that indicates the end of a list
Explanation: A sentinel value is used in loops to mark the end of input or a sequence, signaling the loop to stop.
Question 13
What is a ‘for’ loop used for?
a) To iterate a fixed number of times
b) To execute code conditionally
c) To perform multiplication
d) To repeat code forever
Correct Answer: a) To iterate a fixed number of times
Explanation: A 'for' loop is used when the number of iterations is known beforehand, making it ideal for iterating over arrays or counting.
Question 14
What is a nested loop?
a) A loop inside another loop
b) A conditional statement inside a loop
c) A loop that runs infinitely
d) A loop with two statements
Correct Answer: a) A loop inside another loop
Explanation: Nested loops are loops placed inside the body of another loop, where the inner loop executes completely during each iteration of the outer loop.
Question 15
What is a do-while loop?
a) A loop that first checks the condition before executing
b) A loop that guarantees at least one execution of its body
c) A loop that never ends
d) A loop used to store functions
Correct Answer: b) A loop that guarantees at least one execution of its body
Explanation: A do-while loop executes its body at least once, then checks the condition to determine if further iterations are needed.
Question 16
What is a switch statement?
a) A way to create multiple if-else branches
b) A way to define functions
c) A looping structure
d) A way to declare variables
Correct Answer: a) A way to create multiple if-else branches
Explanation: A switch statement evaluates an expression and executes code based on different possible values of that expression, similar to multiple if-else branches.
Question 17
What is an if-elseif branch used for?
a) To execute a loop
b) To compare variables
c) To detect ranges, with only one branch executing
d) To declare a function
Correct Answer: c) To detect ranges, with only one branch executing
Explanation: If-elseif branches allow a program to test multiple conditions, but only the first true condition's branch is executed.
Question 18
What is an equality operator?
a) A symbol that checks if two values are equal or not equal
b) A symbol that assigns values to variables
c) A loop operator
d) A way to increment variables
Correct Answer: a) A symbol that checks if two values are equal or not equal
Explanation: Equality operators (== and !=) compare two values to check if they are the same or different.
Question 19
What is an implicit conversion in programming?
a) A conversion explicitly requested by the programmer
b) An automatic conversion of one data type to another
c) A function that changes data
d) A type of loop structure
Correct Answer: b) An automatic conversion of one data type to another
Explanation: Implicit conversion occurs automatically when one data type is converted to another, such as from integer to float, without explicit instruction from the programmer.
Question 20
What is a function call?
a) The declaration of a function
b) The execution of a function’s statements by invoking its name
c) A way to declare variables
d) A loop condition
Correct Answer: b) The execution of a function's statements by invoking its name
Explanation: A function call is when a program invokes a function to execute its defined statements.
