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Home CWNP CWNA-107

CWNP CWNA-107 Exam Practice Questions (P. 4)

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Question #16
What factor is likely to cause the least impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS?
  1. A
    Increasing or decreasing the number of spatial streams in use by the client station and AP
  2. B
    Implementation of several other clients in the same BSS using 802.11 g radios
  3. C
    Implementing Fast BSS Transition (FT) for roaming
  4. D
    RF interface from more than 10 nearby Bluetooth transmitters

Correct Answer:
A

Question #17
What ID is typically mapped to an AP’s MAC address if a single BSS is implemented?
  1. A
    VLAN ID
  2. B
    BSSID
  3. C
    Device ID
  4. D
    SSID

Correct Answer:
B
Reference -
https://technet.microsoft.com/en-us/library/cc757419(v=ws.10).aspx

Question #18
What is appended to the end of each 802.11 data frame after the payload?
  1. A
    FCS
  2. B
    Preamble
  3. C
    MAC header
  4. D
    PHY header

Correct Answer:
A

Question #19
When an ACK frame is not received by the transmitting STA, what is assumed?
  1. A
    The frame was correctly delivered
  2. B
    The frame was not delivered and must be retransmitted
  3. C
    The receiver is offline
  4. D
    The receiver processed the frame, but did not respond with an ACK frame because 802.11w is enabled

Correct Answer:
B

Question #20
When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?
  1. A
    For each probe request frame, only one AP may reply with a probe response.
  2. B
    Each AP responds in turn after preparing a probe response and winning contention.
  3. C
    Each AP checks with the DHCP server to see if it can respond and then acts accordingly.
  4. D
    After waiting a SIFS, all APs reply at the same time with a probe response.

Correct Answer:
A
Reference -
https://books.google.com.pk/books?id=YEW0DAAAQBAJ&pg=PA23&lpg=PA23&dq=client+station+sends+a+broadcast+probe+request+frame+with+a
+wildcard+SSID,+how+do+APs
+respond&source=bl&ots=O2sMCqipxO&sig=FSfGWpm0tBdtx7xTd1vhMgS5P_I&hl=en&sa=X&ved=0ahUKEwibq8WP5aDZAhWD1SwKHRQvAkoQ6AEIOTAD# v=onepage&q=client%20station%20sends%20a%20broadcast%20probe%20request%20frame%20with%20a%20wildcard%20SSID%2C%20how%20do%20APs
%20respond&f=false

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