CWNA: Certified Wireless Network Administrator v107 — Question 37

What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?

Answer options

• A. DMG
• B. SIG
• C. DSSS
• D. TVNT

Correct answer: C

Explanation

The correct answer is C, DSSS (Direct Sequence Spread Spectrum), which is designed to operate in the lower frequency spectrum and can effectively use frequencies not occupied by video broadcasts. The other options, DMG, SIG, and TVNT, do not focus on utilizing these specific low-frequency ranges in the same manner as DSSS.