Top 80+ Solved C Language MCQ Questions Answer

a. int __a3;

b. int __3a;

c. int __A3;

d. None of the mentioned

a. int _a3;

b. int a_3;

c. int 3_a;

d. int _3a

a. It is not standardized

b. To avoid conflicts since assemblers and loaders use such names

c. To avoid conflicts since library routines use such names

d. To avoid conflicts with environment variables of an operating system

a. LowerCase letters

b. UpperCase letters

c. CamelCase letters

d. None of the mentioned

a. Compiler and linker implementations

b. Assemblers and loaders implementations

c. C language

d. None of the mentioned

a. int number;

b. float rate;

c. int variable_count;

d. int $main;

a. They can contain alphanumeric characters as well as special characters

b. It is not an error to declare a variable to be one of the keywords(like goto, static)

c. Variable names cannot start with a digit

d. Variable can be of any length

a. The basic data type of C

b. Qualifier

c. Short is the qualifier and int is the basic data type

d. All of the mentioned

a. char

b. int

c. float

d. double

a. signed short

b. unsigned short

c. long

d. int

a. typedef int Boolean;

b. typedef enum {Mon, Tue, Wed, Thu, Fri} Workdays;

c. struct {char name[10], int age};

d. all of the mentioned

a. 4 Bytes

b. 8 Bytes

c. Depends on the system/compiler

d. Cannot be determined

a. Compiler

b. Preprocessor

c. Linker

d. Assembler

a. Constant variables need not be defined as they are declared and can be defined later

b. Global constant variables are initialized to zero

c. const keyword is used to define constant values

d. You cannot reassign a value to a constant variable

a. String str;

b. char *str;

c. float str = 3e2;

d. Both String str; & float str = 3e2;