C Language MCQ - English
Variable names beginning with underscore is not encouraged. Why?
It is not standardized
To avoid conflicts since assemblers and loaders use such names
To avoid conflicts since library routines use such names
To avoid conflicts with environment variables of an operating system
Answer : C
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1) In case of ordinary int variables:
The leftmost bit is reserved for sign
The rightmost bit is reserved for sign
No bit is reserved for sign
None of the above
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2) All keywords in C are in
3) Which of the following is true for variable names in C?
They can contain alphanumeric characters as well as special characters
It is not an error to declare a variable to be one of the keywords(like goto, static)
Variable names cannot start with a digit
Variable can be of any length
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4) Which of following is not a valid name for a C variable?
5) A declaration "short int" is used for variable
Which have short duration in a program
Which have short names
Which may require less storage than normal integers
All of the above
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