Multiple choice

Which of the following methods is used for protecting data in the data communication system?

  1. Data encryption

  2. Data integrity

  3. Data encapsulation

  4. Data redundancy

  5. Polymorphism

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct as data encryption is the most effective way to achieve data security. It is used to protect data by encrypting it with a secret key.