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C Fundamental Test 11) Which of the following is the first operating system developed using C programming language?
The correct option is (d). Explanation: C programming language is invented for developing an operating system called UNIX. By 1973, the complete UNIX OS is developed using C. 2) The C compiler used for UNIX operating system is
The correct option is (a). Explanation: Compiler used for UNIX is 'cc' their full form is C compiler. gcc is compiler for linux. Borland and vc++ is compiler for windows. 3) Which of the following is a logical AND operator?
The correct option is (c). Explanation: The && is called logical AND operator. If both operands are non-zero, then the condition becomes true. The || is called logical OR operator. If any of the two operands are non-zero, then the condition becomes true. The ! is called logical NOT operator. It is used for reversing the logic state of its operand. 4) Which format specifier is used for printing double value?
The correct option is (c). Explanation: The %lf format specifier is used for printing the double value in a C program. 5) Which of the following statement is used to free the allocated memory space for a program?
The correct option is (d). Explanation: The memory allocated by malloc(), calloc(), or realloc() function is deallocated by using the library function free(var-name). |
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