Arrays and Strings - C Programming MCQ Questions and Answers

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Each section contains 100 MCQs on Arrays and Strings .

The toupper() function converts a . . . . . . . . to the corresponding . . . . . . . .

A) uppercase, lowercase B) lowercase, uppercase C) binary, decimal D) decimal, binary

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

ERANGE is reported on an overflow or an underflow.

A) true B) false

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The . . . . . . . . function converts an uppercase letter to the corresponding lowercase letter.

A) islower() B) isupper() C) toupper() D) tolower()

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Functions whose names begin with "strn"

A) manipulates sequences of arbitrary characters B) manipulates null-terminated sequences of characters C) manipulates sequence of non - null characters. D) returns a pointer to the token

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which function will you choose to join two words?

A) strcpy() B) strcat() C) strncon() D) memcon()

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which among the following option is the full set of character class Hexadecimal digits?

A) { 0 1 2 3 4 5 6 7 8 9 A B C D E F } B) { 0 1 2 3 4 5 6 7 8 9 a b c d e f } C) { 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f } D) { 0 1 2 3 4 5 6 7 8 9}

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

This function offers the quickest way to determine whether two character sequences of the same known length match character for the character up to and including any null character in both.

A) strcmp() B) memcmp() C) strncmp() D) no such function

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the use of function char *strchr(ch, c)?

A) return pointer to first occurrence of ch in c or NULL if not present B) return pointer to first occurrence of c in ch or NULL if not present C) return pointer to first occurrence of ch in c or ignores if not present D) return pointer to first occurrence of cin ch or ignores if not present

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

. . . . . . . . is reported on a domain error.

A) EDOM B) ERANGE C) significance loss D) Underflow

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Answer & Solution

Answer: Option A

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What will be returned in the following C code?

size- t strlen(const char *s)
const char *sc;
for(sc = s; *sc!= ' \ O ' ; ++sc)
return(sc - s) ;

A) number of characters equal in sc B) length of string s C) doesn't return any value D) displays string s

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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