What is variable declaration in C?

Basic C Programming - Variables

Quiz
•
Education
•
12th Grade
•
Medium
Hafizul Hasmie
Used 6+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Variable declaration in C is the process of specifying the data type and name of a variable before it is used in the program.
Variable declaration in C is only required for functions
Variable declaration in C is not necessary
Variable declaration in C is the process of assigning a value to a variable
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the scope of variables in C programming.
Variables in C programming have only one scope, which is determined by the data type
The scope of variables in C programming refers to the region of the program where the variable is accessible, including local, global, and block scope.
The scope of variables in C programming refers to the size of the variable's memory allocation
The scope of variables in C programming is limited to the main function
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are constants in C programming?
Variables that can be changed at any point in the program
Data types that are not supported in C programming
Functions that return different values each time they are called
Fixed values that cannot be altered during program execution.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Differentiate between global and local variables in C.
Local variables can be accessed from any part of the program, while global variables are limited to the function they are declared in.
Global variables have a higher scope than local variables, allowing them to be used in any function.
Global variables are only used in main functions, while local variables are used in sub-functions.
Global variables are accessible throughout the program, while local variables are limited to the scope of the function in which they are declared.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the naming conventions for variables in C?
Variable names in C should start with a number
Variable names in C can contain spaces
Variable names in C should follow the convention of starting with a letter or underscore, followed by letters, digits, or underscores. They should not be a keyword or contain special characters.
Variable names in C should be all uppercase
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are variables declared in C?
By using a random keyword
By specifying the data type followed by the variable name
By assigning a value to it directly
By omitting the data type
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the importance of variable scope in C programming.
Variable scope in C programming is important for managing memory efficiently and preventing naming conflicts.
Variable scope in C programming causes compatibility issues with other programming languages
Variable scope in C programming is irrelevant and can be ignored
Variable scope in C programming leads to faster execution times
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