MCQ Bank

The options for this question are missing, so the exact overloaded operator cannot be identified. In C++, most operators can be overloaded except a few special operators such as ::, .*, ., and ?:.

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Q82

Complex codd (complex c1, complex c2); Which statement is true for above code?

A) It accepts two complex numbers as parameters and returns back the resultant complex number.
B)
C)
D)

AI Explanation

The function declaration Complex codd(complex c1, complex c2); indicates a function that takes two complex number objects as arguments. It returns a Complex object containing the result.

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Q83

Which of the following is assignment operator?

A) =
B)
C)
D)

AI Explanation

The equal sign (=) is the assignment operator in C++. It is used to assign a value from the right-hand side expression to a variable on the left-hand side.

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Q84

which option will be correct in order to free the space of memory allocated to a buffer (buf)?

A) Delete buf
B)
C)
D)

AI Explanation

The delete operator is used in C++ to release memory that was dynamically allocated using new. Applying delete to the buffer pointer frees the allocated memory space.

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Q85

How many objects are initialized for the class? Date myDates[10];

A) 10
B)
C)
D)

AI Explanation

The declaration Date myDates[10]; creates an array containing 10 objects of the Date class. Each element of the array represents an initialized object.

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Q86

which statement about pointer is not true?

A) pointer can be void
B)
C)
D)

AI Explanation

A void pointer is a valid type of pointer in C and C++. It can store the address of any data type and is later converted to the required pointer type. Therefore, this statement is true, but the options are incomplete so the exact false statement cannot be determined.

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Q87

Representing logical depiction of the solution to the problem is known as a ________

A) Structure
B)
C)
D)

AI Explanation

A logical depiction of a solution to a problem is generally called an algorithm or flowchart, not a structure. Since only 'Structure' is provided, the correct option cannot be confirmed from the incomplete choices.

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Q88

Which statement about manipulators is not true?

A) it automatically gets that object as parameter passed in to the function
B)
C)
D)

AI Explanation

Manipulators in C++ can work with streams and are often passed as function parameters. The statement describes a valid behavior of manipulators, but the other options are missing for comparison.

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Q89

which of the following structure is correct for WHILE loop?

A) While (condition)
B)
C)
D)

AI Explanation

The basic syntax of a while loop begins with the while keyword followed by a condition in parentheses. The loop continues executing as long as the condition remains true.

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Q90

which of the following is true about the switch statement?

A) It cannot handle the compound conditions which use logical operators
B)
C)
D)

AI Explanation

A switch statement in C++ compares a single expression against constant case values and cannot directly evaluate compound logical conditions. Such conditions are handled using if-else statements.

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Q91

If the condition is not made false in while loop, what will happen?

A) Loop will become infinite
B)
C)
D)

AI Explanation

If the condition of a while loop never becomes false, the loop continues executing indefinitely. This situation is known as an infinite loop.

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Q92

If a function does not return anything, its return type will be ________

A) void
B)
C)
D)

AI Explanation

A function that does not return any value must have its return type specified as void. The void keyword indicates that no value is returned from the function.

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Q93

which of the following is the first step in FOR loop?

A) Initialization condition
B)
C)
D)

AI Explanation

The first step of a for loop is initialization, where the loop control variable is assigned its starting value. This step is executed only once when the loop begins.

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Q94

When we call a function and pass an argument, an object or variable to the function, it is called ?

A) call by value
B)
C)
D)

AI Explanation

When an argument is passed to a function by providing a copy of its value, it is called call by value. Changes made inside the function do not affect the original variable.

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Q95

Stream insertion (<<) and extraction operators (>>) are always implemented as ________ function.

A) Non-member
B)
C)
D)

AI Explanation

Stream insertion (<<) and extraction (>>) operators are usually implemented as non-member functions because the left operand is a stream object such as cout or cin. This allows proper interaction with stream classes.

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Q96

which of the following statement is not true about overloading stream extraction operator (>>)?

A) it can be a member operator.
B)
C)
D)

AI Explanation

The stream extraction operator (>>) is generally implemented as a non-member function because the left operand is an input stream object such as cin. Therefore, stating that it can be a member operator is considered not true in typical C++ stream operator overloading.

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Q97

endl is a type of ________ manipulator.

A) Parameterized less
B)
C)
D)

AI Explanation

The endl manipulator does not take any parameters, so it is a non-parameterized manipulator. Among the given options, 'Parameterized less' is the available choice, though the terminology is incomplete.