Which of the Following Is Not a Valid Storage Medium

question 30

Multiple Choice

Which of the following is not a valid storage medium?

• A) Paper documents
• B) Optical disks
• C) Magnetic tape
• D) All of the choices are valid storage media.

---

Definitions:

#ifndef Directive

A preprocessor directive in C/C++ used to check if a symbol has not been defined before including a section of code.

#ifdef Directive

In C/C++ programming, it is used to make compilation decisions based on whether a particular identifier has been defined earlier in the code or through command-line flags.

Conditional Compilation

A feature in some programming languages that allows the compiler to include or exclude portions of code based on certain conditions.

#ifndef Condition

A preprocessor directive in C/C++ used to check if a specific identifier is not defined before including or skipping part of the code.