CLP-12-01 exam

Which function is used to concatenate two strings in C?A . strncat()B . strcpy()C . strcat()D . sprintf()View AnswerAnswer: C Explanation: strcat() is used to concatenate two strings in C.

What does the strlen() function return in C?A . The number of characters in the stringB . The index of the first occurrence of a characterC . The size of the arrayD . The length of the string including null terminatorView AnswerAnswer: D Explanation: The strlen() function returns the length...

How does the use of optimized algorithms contribute to specialized programming considerations?A . Decreases code readabilityB . Increases code maintainabilityC . Improves code performanceD . Reduces the need for testingView AnswerAnswer: C Explanation: The use of optimized algorithms in specialized programming considerations can improve code performance by reducing execution time...

In the context of specialized programming considerations, what is the significance of cache locality?A . Cache locality is not relevant in specialized programmingB . Cache locality can improve memory access performanceC . Cache locality refers to hardware-specific optimizationsD . Cache locality only affects C++ programmingView AnswerAnswer: B Explanation: Cache locality...

What system call is used to change the offset of the open file in C programming?A . dprintf()B . unlink()C . lseek()D . access()View AnswerAnswer: C Explanation: The lseek() system call is used to change the offset of the open file in C programming.

What function is used to concatenate two strings in C?A . strcat()B . strncpy()C . memcpy()D . strcpy()View AnswerAnswer: A Explanation: strcat() is used to concatenate two strings in C.

In <stdarg.h>, what data type is used to declare a variable which represents the argument list?A . va_floatB . va_listC . va_intD . va_charView AnswerAnswer: B Explanation: The va_list data type is used to declare a variable representing the argument list.

Which C11 keyword is used to indicate a function that never returns?A . _NoreturnB . _PragmaC . _AlignofD . _BoolView AnswerAnswer: A Explanation: The _Noreturn keyword in C11 is used to indicate a function that never returns control to its caller.

Which type of concurrency model is used by POSIX threads (pthread) in C programming?A . PreemptiveB . Co-operativeC . Single-threadedD . Multi-threadedView AnswerAnswer: D Explanation: POSIX threads (pthread) in C programming use a multi-threaded concurrency model.

Which of the following obsolete yet valid language elements are used for trigraphs in C programming?A . ???B . ??!C . ?=+D . ??/View AnswerAnswer: A Explanation: Trigraphs in C programming are represented by three consecutive question marks, such as the "???" trigraph.