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Data Abstraction in C Programming

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Questions and Answers

Which programming technique depends on the separation of the interface and implementation details of the program?

Data encapsulation
Data abstraction (correct)
Data inheritance
Data polymorphism

How can data abstraction be achieved in C?

Using source files
Using macros
Using header files (correct)
Using libraries

What is the purpose of header files in C?

To hide implementation details
To define abstract data types
To separate declarations from definitions (correct)
To perform operations on ADTs

How can you define an abstract data type (ADT) in C?

Using a pointer to a structure (C) Signup and view all the answers

What do the operations that can be performed on an ADT depend on?

The ADT's purpose (A) Signup and view all the answers

Which of the following operations might be included in an ADT for a stack?

Initialization, pushing data, popping data (D) Signup and view all the answers

What are arrays in C?

Collections of data items of the same type, stored at contiguous memory locations (A) Signup and view all the answers

What types of data can be stored in arrays?

Primitive or derived data types, such as int, float, char, structures, pointers, etc. (D) Signup and view all the answers

What are programmer-defined data types in C?

Custom data types created by the programmer to suit their specific needs (B) Signup and view all the answers

What is the difference between structures and unions in C?

Structures allow you to combine variables of different data types under a single name, while unions allow you to define a variable that can hold values of different data types at different times (A) Signup and view all the answers

Which of the following is NOT a best practice when implementing programmer-defined data types involving arrays?

Not testing and debugging (B) Signup and view all the answers

What is the purpose of testing when working with arrays and programmer-defined data types?

To run the code with various inputs and ensure it produces the expected output (D) Signup and view all the answers

What is a common debugging technique when working with arrays and programmer-defined data types?

Using print statements to check variable values (D) Signup and view all the answers

Which of the following is NOT a proper coding standard when implementing programmer-defined data types involving arrays?

Using short and cryptic variable names (B) Signup and view all the answers

What is data abstraction in the context of programmer-defined data types?

Hiding implementation details and exposing only the essential features of the data type (D) Signup and view all the answers