Certified Network Defender (CND) — Question 177

Which type of modulation technique is used in local area wireless networks (LAWNs)?

Answer options

• A. FHSS
• B. DSSS
• C. MIMO-OFDM
• D. OFDM

Correct answer: A

Explanation

FHSS (Frequency Hopping Spread Spectrum) is commonly used in local area wireless networks for its ability to minimize interference and enhance security. DSSS, MIMO-OFDM, and OFDM are also modulation techniques but are either less prevalent in LAWNs or serve different purposes in other contexts.