Arrays and Strings MCQs

Question 1

errno causes trouble in two subtler ways(vague and explicit).

Accepted Answer

true

Answer

false

Question 2

What do the following C function do? int isgraph(int c);

Accepted Answer

tests for any printing character

Answer

tests for only space character

Answer

tests for only digit

Answer

tests for only lower case

Question 3

The . . . . . . . . function tests for any character for which isalpha or isdigit is true.

Accepted Answer

isalnum()

Answer

isxdigit()

Answer

isspace()

Answer

isupper()

Question 4

There are two groups of string functions defined in the header . What are they?

Accepted Answer

first group names beginning with str; second group names beginning with mem

Answer

first group names beginning with str; second group names beginning with is

Answer

first group names beginning with string; second group names beginning with mem

Answer

first group names beginning with str; second group names beginning with type

Question 5

What error occurs when a result is unde?ned for a given argument value?

Accepted Answer

domain

Answer

significance loss

Answer

underflow

Answer

overflow

Question 6

What is the prototype of strcoll() function?

Accepted Answer

int strcoll(const char *s1,const char *s2)

Answer

int strcoll(const char *s1)

Answer

int strcoll(const *s1,const *s2)

Answer

int strcoll(const *s1)

Question 7

What is the return value of strxfrm()?

Accepted Answer

length of the transformed string, not including the terminating null-character

Answer

length of the transformed string, including the terminating null-character

Answer

display the transformed string, not including the terminating null character

Answer

display the transformed string, not including the terminating null-character

Question 8

Which among the following is Copying function?

Accepted Answer

memcpy()

Answer

strcopy()

Answer

memcopy()

Answer

strxcpy()

Question 9

Which function tests for any character that is an uppercase letter.

Accepted Answer

isupper()

Answer

iscntrl()

Answer

ispunct()

Answer

isdigit()