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Question 59/70
A client is operating in an unstable RF environment. Out of five data frames transmitted to the client it only receives four. The client sends a Block Ack to acknowledge the receipt of these four frames but due to frame corruption the Block Ack is not received by the AP. Which frames will be retransmitted?
Correct Answer: C
If the AP does not receive the Block Ack, it has no confirmation of which MPDUs were successfully received within the block. Without that acknowledgment, the transmitter must assume delivery failure for the outstanding frames and retransmit the entire burst to ensure reliable delivery.
- Question List (70q)
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- Question 18: As a network Administrator, you have recently deployed a new...
- Question 19: Which one of the following statements is true regarding the ...
- Question 20: What is an AIFS?
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- Question 27: What is the difference between a Data frame and a QoS-Data f...
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- Question 29: Where would you look in a packet trace file to identify the ...
- Question 30: Which one of the following tools would be the best to most a...
- Question 31: Which one of the following protocol analyzer features do not...
- Question 32: You are troubleshooting an 802.1X\EAP exchange and see the A...
- Question 33: What is the function of the PHY layer?...
- Question 34: After examining a Beacon frame decode you see the SSID Eleme...
- Question 35: You have deployed a new 802.11ac WLAN for a customer who wan...
- Question 36: Which protocol analyzer feature provides automated, intellig...
- Question 37: Finish the statement: It is possible to distinguish between ...
- Question 38: Which piece of information is not transmitted in any of the ...
- Question 39: Why would a STA that supports 802.11k Radio Measurement send...
- Question 40: WMM-PS trigger frames can be what type of IEEE 802.11 frames...
- Question 41: In which element of a Beacon frame would you look to identit...
- Question 42: In the 2.4 GHz band, what data rate are Probe Requests usual...
- Question 43: What is encrypted within the third message of the 4-Way Hand...
- Question 44: Given: The Frame Check Sequence (FCS) is a 32 CRC used for e...
- Question 45: Which common feature of a Spectrum Analyzer would be the bes...
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- Question 51: Which one of the following should be the first step when tro...
- Question 52: Which one of the statements regarding the Frame Control fiel...
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- Question 54: As it pertains to HT L-SIG TXOP Protection, what statement i...
- Question 55: The 802.11r-2008 amendment to the 802.11 specification intro...
- Question 56: Which piece of information is not transmitted in an HT PPDU ...
- Question 57: As a wireless network consultant you have been called in to ...
- Question 58: Protocol analyzers may present field values in either binary...
- Question 59: A client is operating in an unstable RF environment. Out of ...
- Question 60: You are troubleshooting a client that is experiencing slow W...
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- Question 63: What is the function of 802.11 Management frames?...
- Question 64: In an infrastructure network, which statement is true concer...
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- Question 67: Which Spectrum Analyzer plot visualizes the spectrum over ti...
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