MCQ Bank

Many standard library identifiers in C/C++ use names that begin with an underscore. These naming conventions help distinguish library-reserved identifiers from user-defined names.

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Q42

The coding of a program is translated into machine language by ________

A) Compiler
B)
C)
D)

AI Explanation

A compiler translates the source code written by a programmer into machine language that the computer can execute. It also checks the program for syntax errors during translation.

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Q43

Learning "How to program" is important, because it develops ________ and problem solving abilities.

A) Analytical
B)
C)
D)

AI Explanation

Learning programming improves analytical thinking and problem-solving abilities. It teaches programmers how to break down complex problems into smaller, manageable steps.

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Q44

in C/C++, the algebraic expression (b2-4ac)/2a can be written as:

A) (b*b-4*a*c)/(2*a)
B)
C)
D)

AI Explanation

In C/C++, multiplication must be explicitly written using the * operator, and parentheses are needed to maintain the correct order of operations. This expression correctly represents the given algebraic formula.

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Q45

In C/C++, which of the following data type is used to store real member?

A) Float
B)
C)
D)

AI Explanation

The float data type is used in C/C++ to store real numbers that contain fractional or decimal values. It provides single-precision floating-point storage.

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Q46

To understand programming concepts, ________ programming language being used as a vehicle in cs201 "Introduction to programming" course.

A) C/C++
B)
C)
D)

AI Explanation

The CS201 Introduction to Programming course commonly uses C/C++ as the vehicle language to teach fundamental programming concepts. These languages provide a strong foundation for understanding programming logic and structures.

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Q47

The bit manipulators operator ________ is used to check whether a specific bit is set or not.

A) &
B)
C)
D)

AI Explanation

The bitwise AND operator (&) is used to check whether a specific bit is set in a value. It compares corresponding bits and returns a result based on bit positions.

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Q48

in C++, which operator is used while accessing through the pointer to structure?

A) ->
B)
C)
D)

AI Explanation

In C++, the arrow operator (->) is used to access members of a structure or class through a pointer. It combines pointer dereferencing with member access.

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Q49

Function seekg() and seekp() require an argument of type ________ to let them know how many bytes to move forward backward.

A) Long
B)
C)
D)

AI Explanation

The seekg() and seekp() functions use a long integer argument to specify the number of bytes to move within a file stream. This determines the new position for reading or writing.

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Q50

Macro is defined by ________ preprocessor directive.

A) #define
B)
C)
D)

AI Explanation

The #define preprocessor directive is used to create macros in C and C++. It allows a name or expression to be replaced by its defined value during preprocessing.

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Q51

In C++, when accessing files randomly, which function is used to get current pointer position inside a file?

A) tellg()
B)
C)
D)

AI Explanation

The tellg() function in C++ is used with input file streams to determine the current position of the get pointer in a file. It is useful for random access operations in files.

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Q52

Which is not a preprocessor directive of C-Language?

A) # Startif
B)
C)
D)

AI Explanation

# Startif is not a valid C language preprocessor directive. Valid directives include #define, #include, #if, and others supported by the preprocessor.

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Q53

The statement char arr[10]; is an example of a type of ________ memory allocation

A) static
B)
C)
D)

AI Explanation

The declaration char arr[10]; creates a fixed-size array with memory allocated automatically. This is an example of static memory allocation.

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Q54

What would be the output of the following statement? C=13%2;

A) 1
B)
C)
D)

AI Explanation

The modulus operator (%) gives the remainder after division. Since 13 divided by 2 leaves a remainder of 1, the value assigned to C is 1.

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Q55

Which of the following two array are copy-able?

A) int a[5], int b[5]
B)
C)
D)

AI Explanation

Arrays of the same data type and size can be considered copy-able when their elements are copied individually. The given option represents two compatible integer arrays.

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Q56

A variable declared inside a code block becomes the ________ variable for that block.

A) Local
B)
C)
D)

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Q57

Which type of arrays are used while dealing with sentences?

A) Character arrays
B)
C)
D)

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Q58

In the call by reference method, which operator is used to get the address of a variable?

A) &
B)
C)
D)

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Q59

Which of the following is the correct method to declare an array?

A) data-type array-name[size];
B)
C)
D)

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Q60

char name[] = "Hello World"; In the above statement, a memory of ________ characters will be allocated to the array name.

A) 12
B)
C)
D)