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802.11 Standards and PHY/MAC Operations

Table of Contents

802.11 Standards and PHY/MAC Operations

Page 1 of 5

1. Which IEEE 802.11 standard introduced OFDMA and Target Wake Time (TWT)? 802.11ac 802.11n 802.11ax 802.11a

Page 2 of 5

2. Which 802.11 frame type is used to establish and maintain a wireless connection? Control frame Data frame Management frame QoS frame

Page 3 of 5

3. What is the primary purpose of CSMA/CA in wireless networks? To encrypt wireless traffic To prevent collisions on a shared medium To increase transmit power To authenticate wireless clients

Page 4 of 5

4. Which modulation technique is used by 802.11a/g/n/ac/ax to transmit data? DSSS FHSS OFDM BPSK only

Page 5 of 5

5. What is the function of the RTS/CTS mechanism? Increase data rate Authenticate wireless clients Reduce hidden node collisions Encrypt management frames

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