CCNA: Cisco Certified Network Associate — Question 1031

What is a characteristic of encryption in wireless networks?

Answer options

• A. used to ensure data integrity
• B. uses 802.1x as the standard encoding method
• C. uses protocols such as TKIP and CCMP to secure data
• D. only works with the 5Ghz frequency

Correct answer: C

Explanation

The correct answer is C because protocols such as TKIP and CCMP are specifically designed to secure data in wireless networks. Option A is incorrect as data integrity is a separate aspect that encryption can support but is not its primary function. Option B is misleading since 802.1x is used for network access control rather than as an encryption method. Option D is false because encryption is not limited to the 5Ghz frequency; it can be applied across different frequency bands.