Correct Answer: A) break statement
Explanation: The break statement is used to exit a loop immediately, regardless of the loop’s condition.
A) 2 is displayed on the screen
B) 5 is displayed as the result
C) 7 is displayed on the screen
D) Error due to missing semicolon
Correct Answer: C) 7 is displayed on the screen
Explanation: The code assigns 5 to x, adds 2 to it, and assigns the result to y. When y is printed, the output is 7.
A) break statement
B) continue statement
C) pass statement
D) next statement
Correct Answer: A) break statement
Explanation: The break statement is used to exit a loop immediately, regardless of the loop’s condition.
A) static keyword
B) let keyword
C) const keyword
D) fixed keyword
Correct Answer: C) const keyword
Explanation: The const keyword is used to declare constants, ensuring the variable’s value cannot be changed after initialization.
A) 0 as the result
B) 1 as the remainder
C) 3 as the divisor
D) 10 as the numerator
Correct Answer: B) 1 as the remainder
Explanation: The modulo operator % returns the remainder of a division. Dividing 10 by 3 gives a remainder of 1.
A) float data type
B) boolean data type
C) number data type
D) string data type
Correct Answer: C) number data type
Explanation: Most programming languages do not have a number data type; they use specific types like int, float, or double.
A) Terminate a program’s execution
B) Provide additional conditional checks
C) Repeat a block of code continuously
D) Initialize variables within a loop
Correct Answer: B) Provide additional conditional checks
Explanation: The elif statement allows for additional conditions to be checked when the initial if condition is false.
A) Condition to terminate
B) Initialization variable
C) Range function or sequence
D) Increment or decrement step
Correct Answer: C) Range function or sequence
Explanation: In a for loop, the range function or sequence defines the set of values over which the loop will iterate.
A) || symbol for logic
B) && symbol for logic
C) == symbol for comparison
D) ++ operator for increment
Correct Answer: B) && symbol for logic
Explanation: The && operator checks whether both conditions in a logical statement are true.
A) An error is thrown immediately
B) The variable is treated as null
C) A default value is assigned
D) Undefined behavior occurs
Correct Answer: D) Undefined behavior occurs
Explanation: In most languages, using an uninitialized variable can lead to unpredictable behavior or errors, depending on the language.
A) Using curly braces {}
B) Indenting lines properly
C) Adding a semicolon ;
D) Using parentheses ()
Correct Answer: B) Indenting lines properly
Explanation: Python uses indentation to define blocks of code, unlike other languages that rely on braces or keywords.
A) 0 is assigned by default
B) A random value is assigned
C) Null is used for uninitialized variables
D) Undefined behavior occurs
Correct Answer: B) A random value is assigned
Explanation: In C/C++, uninitialized variables may hold a garbage value unless explicitly initialized.
A) 2 is printed
B) 5 is printed
C) 7 is printed
D) Error due to syntax
Correct Answer: C) 7 is printed
Explanation: The x += 2 statement is shorthand for x = x + 2, so x becomes 7, which is then printed.
A) for loop in general
B) while loop in all cases
C) do-while loop in logic
D) nested loop in recursion
Correct Answer: C) do-while loop in logic
Explanation: A do-while loop executes its code block at least once before checking the condition.
A) Skip the current iteration
B) Restart the loop from the beginning
C) Terminate the loop execution
D) Reverse the iteration sequence
Correct Answer: A) Skip the current iteration
Explanation: The continue statement skips the remaining code in the current iteration and proceeds to the next loop cycle.
A) size() function for arrays
B) length() function for objects
C) len() function for sequences
D) count() function for elements
Correct Answer: C) len() function for sequences
Explanation: In languages like Python, the len() function returns the number of elements in strings, arrays, or lists.
A) Using # symbol at the beginning
B) Using // for single-line comments
C) Wrapping text with {} braces
D) Using : at the start
Correct Answer: B) Using // for single-line comments
Explanation: Single-line comments in C++ begin with //, while multi-line comments are enclosed within /* */.
A) True for both conditions
B) Error in boolean comparison
C) Null for invalid logic
D) False because both are not true
Correct Answer: D) False because both are not true
Explanation: The and operator evaluates to True only if both conditions are True. Since one is False, the result is False.
A) End the function and return a value
B) Restart the function execution
C) Skip some lines in the function
D) Log the results for debugging
Correct Answer: A) End the function and return a value
Explanation: The return statement exits a function and optionally passes a value back to the caller.
A) Arrays store fixed types; lists can mix types
B) Lists are faster than arrays in memory
C) Arrays handle larger data automatically
D) Lists encrypt elements by default
Correct Answer: A) Arrays store fixed types; lists can mix types
Explanation: In most languages, arrays store elements of a fixed type, while lists can hold mixed types and are more dynamic.
A) 123VariableName as identifier
B) _myVarName for consistency
C) ifKeywordName for readability
D) $Var-Name as declaration
Correct Answer: B) _myVarName for consistency
Explanation: Identifiers must begin with a letter or underscore and cannot include reserved keywords or special characters like $ or -.
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