Explore topic-wise MCQs in Company QA.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Company QA knowledge and support exam preparation. Choose a topic below to get started.

1.

What will be the output of the following C++ function?

A. 0
B. 1
C. Compiler error may be possible
D. Runtime error may be possibleView Answer
Answer» D. Runtime error may be possibleView Answer
2.

0946, 786427373824, ‘x’ and 0X2f are _____ _____ ____ and _____ literals respectively.

A. decimal, character, octal, hexadecimal
B. octal, hexadecimal, character, decimal
C. hexadecimal, octal, decimal, character
D. octal, decimal, character, hexadecimal
Answer» E.
3.

What is the value of the following 8-bit integer after all statements are executed?

A. 1
B. -1
C. 127
D. Implementation definedView Answer
Answer» E.
4.

The size_t integer type in C++ is?

A. Unsigned integer of at least 64 bits
B. Signed integer of at least 16 bits
C. Unsigned integer of at least 16 bits
D. Signed integer of at least 64 bits
Answer» D. Signed integer of at least 64 bits
5.

ANDING_INTEGER_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§A‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_WITH_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§TRUE‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_:8?$#

A. ANDing integer ‘a’ with ‘true’ :0
B. ANDing integer ‘a’ with ‘true’ :1
C. None of the mentioned
Answer» D.
6.

0946, 786427373824, ‘x’ and 0X2f are _____ _____ ____ and _____ literals respectively.$

A. decimal, character,octal, hexadecimal
B. octal, hexadecimal, character, decimal
C. hexadecimal, octal, decimal, character
D. octal, decimal, character, hexadecimal
Answer» B. octal, hexadecimal, character, decimal
7.

Which of these expressions will isolate the rightmost set bit?

A. x = x & (~x)
B. x = x ^ (~x)
C. x = x & (-x)
D. x = x ^ (-x)
Answer» E.
8.

Which of these expressions will make the rightmost set bit zero in an input integer x?

A. x = x | (x-1)
B. x = x & (x-1)
C. x = x | (x+1)
D. x = x & (x+2)
Answer» D. x = x & (x+2)
9.

Which of these expressions will return true if the input integer v is a power of two?

A. (v | (v + 1)) == 0;
B. (~v & (v – 1)) == 0;
C. (v | (v – 1)) == 0;
D. (v & (v – 1)) == 0;
Answer» E.
10.

x is greater

A. y is greater
B. implementation defined
C. arbitrary
Answer» B. implementation defined