CCNA: Cisco Certified Network Associate — Question 974

What is a characteristic of encryption in wireless networks?

Answer options

• A. provides increased protection against spyware
• B. uses policies to prevent unauthorized users
• C. converts electrical current to radio waves
• D. prevents the interception of data as it transits a network

Correct answer: D

Explanation

The correct answer is D because encryption secures data by making it unreadable to unauthorized users during transmission, thus preventing interception. Options A and B relate to security measures but do not specifically describe encryption. Option C incorrectly describes the function of encryption, as it does not involve converting electrical current to radio waves.