Practice Free CWNA-109 Exam Online Questions
What does FCC stand for?
- A . Federal Castration Commission
- B . Foreign Colonization Congress
- C . Freight Coordination Capital
- D . Federal Communications Commission
In which plane of the three networking planes is an access point configured by a WLAN controller?
- A . Control
- B . Management
- C . Security
- D . Data
When enabled, WLAN encryption provides data privacy for which portion of an 802.11 data frame?
- A . MPDU
- B . MSDU
- C . PPDU
- D . PSDU
Which of the following tools can be used in an indoor 802.11 site survey? (Choose all that apply.)
- A . Multiple antennas
- B . 902 to 928 MHz spectrum analyzer
- C . Client adapter
- D . Access point
- E . Floor plan map
When transmitting a QoS frame using MU-MIMO, which of the following statements is true? (Choose all that apply.)
- A . Voice frames are always transmitted before lower-priority frames.
- B . The category that is used to take control of the transmission is known as the primary access category.
- C . If a lower category frame is transmitted, only higher category frames can be transmitted using the other spatial streams.
- D . Lower category frames can be transmitted as long as they do not increase the transmission duration of the primary access category.
- E . Multiple lower category frames can be transmitted along with the primary access category frame.
The IEEE 802.11a/n/ac physical layer technologies utilize the 5 GHz frequency band.
What is true of the channels in this frequency spectrum?
- A . 14 channels are available worldwide.
- B . 11 channels are available worldwide.
- C . Regulatory domains worldwide require DFS and TPC in all these channels.
- D . DFS may be required in some regulatory domains on some channels.
- E . 802.11 channels are separated by 5 Mhz
Which of the following statements is not true regarding the number of subcarriers in the following channels? (Choose all that apply.)
- A . 40 MHz subcarriers = 2 times 20 MHz subcarriers
- B . 40 MHz subcarriers > 2 times 20 MHz subcarriers
- C . 80 MHz subcarriers = 2 times 40 MHz subcarriers
- D . 80 MHz subcarriers > 2 times 40 MHz subcarriers
- E . 160 MHz subcarriers = 2 times 80 MHz subcarriers
- F . 160 MHz subcarriers > 2 times 80 MHz subcarriers
Users and Network support personnel at a mid-sized equipment manufacturer have been discussing the potential uses and benefits of implementing an indoor WLAN.
The network administrator and network manager have requested a meeting of senior management personnel to discuss a WLAN implementation before performing a site survey or taking any implementation steps. The first topic of discussion in the meeting is the corporate policy concerning implementation and use of WLAN technology.
What specific topics are appropriate in this policy meeting? (Choose 2)
- A . Use of the latest 802.11ac equipment
- B . Business justification
- C . User productivity impact
- D . Antenna types
- E . Defining RF channels for use
How can an HT radio increase throughput at the MAC sublayer of the Data-Link layer? (Choose all that apply.)
- A . A-MSDU
- B . RIFS
- C . A-MPDU
- D . Guard interval
- E . MTBA
What are some potential causes of layer 2 retransmissions? (Choose all that apply.)
- A . RF interference
- B . Low signal-to-noise ratio (SNR)
- C . Dual-frequency transmissions
- D . Fade margin
- E . Multiplexing