Question

computer science questions

13. What is the value of the expression that follows? strcmp ("dog", "dogs"); 0 nosodo none of the above 14. What is the value of the expression that follows? strcmp ("dog", "Dog"); a. -1 e. '10' none of the above 15. Which character is used to left justify the string argument in printf? 0 \left 16. To test whether a character is one of '0', '1', '2', '3', '4', '5', '6', '7', '8', or '9', use the standard library function. isnumber isnotalpha isnumeric isdigit all of the above 17. Which function returns the length of a string, not including the null terminator? numchar strlen charlen countstr none of the above e. 18. When buffer overflow occurs: c. it is a dangerous condition it is unlikely to be caught by the compiler it is unlikely to be caught by the runtime system memory not allocated to the array is overwritten all of the above 19. The data type returned from a string-building function is: Sodo char char * string string * none of the above 20. When a call to fgets encounters the end of the file, it: nodo returns 0 returns 1 returns void causes a runtime error causes a buffer overflow

Answer 1

13 (A) -1

Explanation: dog < dogs because of one extra s

14 (C) 1

Explanation: d > D because ASCII value of d = 100 and D = 65 HENCE d > D

15 (A) -

Explanation: - sign is used for right justification

16 (D)

Explanation: isdigit

17) b

strlen gives us the string length

18) d

Trying to write into memory not allowed for array


19) b, char * is returned

20) (a) fgets return NULL i.e 0

PLEASE COMMENT if there is any concern.

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