Practice Free CWNA-109 Exam Online Questions
What are some examples of control plane intelligence? (Choose three)
- A . Dynamic RF
- B . Roaming mechanisms
- C . Port filtering
- D . Mesh protocols
What is a common feature of an 802.11 WLAN client utility? (Choose 2)
- A . Real-time retry monitor
- B . AP Signal strength meter
- C . Spectrum analyzer utility
- D . VLAN configuration
- E . Link statistics display
Which two components should be mandatory in every public access wireless security policy? (Choose the best two answers.)
- A . Encrypted VPN
- B . 802.1X/EAP
- C . Personal firewall
- D . Captive portal
- E . Wireless stun gun
What organization ensures interoperability of WLAN products?
- A . IEEE
- B . ITU-R
- C . ISO
- D . Wi-Fi Alliance
- E . FCC
In a point-to-point bridge environment where 802.1X/EAP is used for bridge authentication, what device in the network acts as the 802.1X supplicant?
- A . Nonroot bridge
- B . Controller
- C . Root bridge
- D . RADIUS server
- E . Layer 3 core switch
Which of the following can cause roaming problems? (Choose all that apply.)
- A . Too little cell coverage overlap
- B . Too much cell coverage overlap
- C . Free space path loss
- D . CSMA/CA
- E . Hidden node
What is the maximum data rate defined by the 802.11ac amendment?
- A . 54 Mbps
- B . 1300 Mbps
- C . 3466.7 Mbps
- D . 6933.3 Mbps
- E . 60 Gbps
The presence of what type of transmissions can trigger the protection mechanism within an ERP basic service set? (Choose all that apply.)
- A . Association of an HR-DSSS client
- B . Association of an ERP-OFDM client
- C . HR-DSSS beacon frame
- D . ERP beacon frame with the NonERP_Present bit set to 1
- E . Association of an FHSS client
Braydon, a WLAN consultant, has recommended that a new 802.11n/ac network use only 40 MHz channels in the 5 GHz U-NII bands.
Why would he recommend that 40 MHz channels be used only in 5 GHz and not in 2.4 GHz?
- A . HT/VHT radios do not require DFS and TPC in the 5 GHz bands.
- B . HT/VHT radios get better range using TxBF in the 5 GHz bands.
- C . 40 MHz channels do not scale in the 2.4 GHz ISM band.
- D . 5 GHz VHT radios are less expensive than 2.4 GHz HT radios.
The IEEE 802.11-2012 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specifications (PHYs)? (Choose 2)
- A . HT
- B . OFDM
- C . HR/DSSS
- D . ERP-PBCC
- E . DSSS-OFDM