CCNA: Cisco Certified Network Associate — Question 990

What is a characteristic of encryption in wireless networks?

Answer options

• A. intercepts data threats before they attack a network
• B. uses policies to prevent unauthorized users
• C. must include a combination of letters and numbers
• D. encodes and decodes data for authorized users

Correct answer: D

Explanation

The correct answer is D because encryption specifically involves encoding data so that only authorized users can decode and access it. Options A and B refer to security measures that do not directly relate to encryption, while option C discusses a requirement for passwords rather than encryption itself.