Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard?
A. FHSS and DSSS
B. THSS and FHSS
C. THSS and DSSS
D. Hybrid technique
Answer:A
Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard?
A. FHSS and DSSS B. THSS and FHSS C. THSS and DSSS D. Hybrid technique
Explanation: Original IEEE 802.11 used both the approaches of FHSS (Frequency Hopping Spread Spectrum) and DSSS (Direct Sequence Spread Spectrum). But from late 2001s, only DSSS modems are used within IEEE 802.11.