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1 . How can you make an infinite loop in C?
A. while(1) { }
B. loop: ... goto loop;
C. for(;;) { }
D. All answers are right

2 . C99 standard guarantees uniqueness of ____ characters for internal names.
A. 12 B. 26
C. 31 D. 48

3 . C99 standard guarantess uniqueness of _____ characters for external names.
A. 31 B. 63
C. 79 D. 92

4 . Which of the following is not a valid variable name declaration?
A. int _a3; B. int 3_a;
C. int a_3; D. int _3a

5 . All keywords in C are in
A. LowerCase letters B. UpperCase letters
C. CamelCase letters D. None




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