CIT 345 FINAL ACTUAL EXAM NEWEST 2025/2026 WITH
COMPLETE QUESTIONS AND CORRECT ANSWERS |ALREADY
GRADED A+||BRAND NEW VERSION!
1. What is the difference between association frames and reassociation frames?
(Choose all that apply.) - ANSWER-B. Fast BSS transition only uses reassociation
frames. D. Reassociation frames contain the BSSID of the original AP.
2. Which of the following contains only LLC data and the IP packet, but does not
include any 802.11 data? - ANSWER-D. MSDU
3. Which of the following are protection mechanisms? (Choose all that apply.) -
ANSWER-B. RTS/CTS D. CTS-to-Self
4. The presence of what type of transmissions can trigger the protection
mechanism within an ERP basic service set? (Choose all that apply.) - ANSWER-A.
Association of an HR-DSSS client C. HR-DSSS beacon frame D. ERP beacon frame
with the NonERP_Present bit set to 1
5. Which of the following information is included in a probe response frame?
(Choose all that apply.) - ANSWER-A. Time stamp B. Supported data rates C.
Service set capabilities D. SSID
6. Which of the following are true about beacon management frames? (Choose all
that apply.) - ANSWER-B. Time-stamp information is used by the clients to
synchronize their clocks. D. Beacons can contain vendor-proprietary information.
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7. If WMM-PS is not supported, after a station sees its AID set to 1 in the TIM,
what typically is the next frame that the station transmits? - ANSWER-B. PS-Poll
8. When a station sends an RTS, the Duration/ID field notifies the other stations
that they must set their NAV timers to which of the following values? - ANSWER-D.
The time necessary to transmit the CTS, DATA, and ACK frames
9. How does a client station indicate that it is using Power Save mode? - ANSWER-
B. It transmits a frame to the AP with the Power Management field set to 1.
10. What would cause an 802.11 station to retransmit a unicast frame? (Choose all
that apply.) - ANSWER-A. The transmitted unicast frame was corrupted. B. The
ACK frame from the receiver was corrupted.
11. If a station is in Power Save mode, how does it know that the AP has buffered
unicast frames waiting for it? - ANSWER-B. By examining the TIM field
12. When is an ERP (802.11g) AP required by the IEEE 802.11-2007 standard to
respond to probe request frames from nearby HR-DSSS (802.11b) stations?
(Choose all that apply.) - ANSWER-A. When the probe request frames contain a
null SSID value E. When the probe request frames contain the correct SSID value
13. Which of the following are true about scanning? (Choose all that apply.) -
ANSWER-A. There are two types of scanning: passive and active. D. It is common
for stations to continue to send probe requests after being associated to an AP.
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14. What process is used by band steering to make client radios connect to the
AP's 5 GHz radio? - ANSWER-D. The AP only responds to the client using the 5 GHz
radio.
15. When a client station is first powered on, what is the order of frames
generated by the client station and AP? - ANSWER-B. Probe request, probe
response, authentication request/response, association request/ response
16. WLAN users have recently complained about gaps in audio and problems with
the pushto- talk capabilities with the ACME Company's VoWiFi phones. What
could be the cause of this problem? - ANSWER-B. Misconfigured DTIM setting
17. The WLAN help desk gets a call that all of the sudden, all of the HR-DSSS
(802.11b) VoWiFi phones cannot connect to any of the ERP (802.11g) lightweight
APs that are managed by a multiple-channel architecture WLAN controller. All the
laptops with ERP (802.11g) radios can still connect. What are the possible causes
of this problem? (Choose all that apply.) - ANSWER-A. The WLAN admin disabled
the 1, 2, 5.5, and 11 Mbps data rates on the controller. C. The WLAN admin
enabled the 6 and 9 Mbps data rates on the controller as basic rates.
18. In a multiple-channel architecture, roaming is controlled by the client station
and occurs based on a set of proprietary rules determined by the manufacturer of
the wireless radio. Which of the following parameters are often used when
making the decision to roam? (Choose all that apply.) - ANSWER-A. Received
signal level C. SNR
19. What are some of the advantages of using U-APSD and WMM-PS power
management over legacy power-management methods? (Choose all that apply.) -
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ANSWER-A. Applications control doze time and trigger frames. C. The client does
not have to wait for a beacon to request data. D. Downlink traffic is sent in a frame
burst. E. Data frames are used as trigger frames. PS-Poll frames are not used.
20. WMM-PS is based on which 802.11-2007 power-management method? -
ANSWER-B. U-APSD
802.11 technology is typically deployed at which fundamental layer of
networkarchitecture? - ANSWER-C. Access
Which organization is responsible for enforcing maximum transmit power rules in
an unlicensed frequency band? - ANSWER-E. None of the above
802.11 wireless bridge links are typically associated with which network
architecture layer? - ANSWER-A. Core
The 802.11-2007 standard was created by which organization? - ANSWER-A. IEEE
What organization ensures interoperability of WLAN products? - ANSWER-D. Wi-Fi
Alliance
What type of signal is required to carry data? - ANSWER-C. Carrier signal
Which keying method is most susceptible to interference from noise? - ANSWER-
B. ASK
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