C String Test - Sanfoundry

1. What will strcmp() function do?

compares the string

compares the first n characters of the object

copies the string

undefined function

2. What is the prototype of strcoll() function?

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

int strcoll(const char *s1)

int strcoll(const *s1)

int strcoll(const *s1,const *s2)

3. Which among the following is Copying function?

strxcpy()

strcopy()

memcopy()

memcpy()

4. The ______ function appends not more than n characters.

strncat()

strcat()

strcon()

memcat()

5. What will be the output of the following C code?

const char pla[] = "string1";
const char src[] = "string2";
printf("Before memmove place= %s, src = %s\n", pla, src);
memmove(pla, src, 7);
printf("After memmove place = %s, src = %s\n", pla, src);

Before memmove place= string1, src = string2 After memmove place = string2, src = string2

Before memmove place = string2, src = string1 After memmove place= string2, src =string2

Before memmove place= string1, src = string2 After memmove place=string1, src = string1

Before memmove place = string2, src = string2 After memmove place= string1, src = string2

6. What will be the output of the following C code?

const char str1[]="ABCDEF1234567";
const char str2[] = "269";
len = strcspn(str1, str2);
printf("First matching character is at %d\n", len + 1);

First matching character is at 12

First matching character is at 9

First matching character is at 8

First matching character is at 7

7. Which of the following is the variable type defined in header string. h?

size_t

size

size-t

sizet

8. Which function will you choose to join two words?

strcat()

strncon()

strcpy()

memcon()

9. NULL is the macro defined in the header string. h.

false

true

10. What is the function of strcoll()?

compares the string, result is not dependent on the LC_COLLATE

copies the string, result is dependent on the LC_COLLATE

copies the string, result is not dependent on the LC_COLLATE

compares the string, result is dependent on the LC_COLLATE