Free CWNA-106: Certified Wireless Network Administrator Exam Questions and Answers

In an enterprise WLAN, what condition will prevent a dual-band VHT/HT client device from performing a fast and seamless transition (i.e. latency-sensitive applications are notdisrupted) between two access points that are managed by the same WLAN controller?

• AA. The current AP is using channel 1 and the new AP is using channel 40.
• BB. The SSID of the current AP does not match the SSID of the new AP.
• CC. The current AP supports only HT and the new AP is VHT capable.
• DD. The access points are hiding the SSID in Beacons and Probe Response frames.

The network administrator at XYZ Company recently attended a training class on wireless security and realized that heshould update the corporate security policy to address WLAN technology. The network administrator is listing the items that should be addressed in the security policy update, and has asked for your input. What WLAN topics should be addressed by a companysecurity policy? (Choose 3)

Select 3 answers.

• AA. Theft prevention and data security of WLAN infrastructure devices
• BB. Wireless intrusion monitoring and response procedures
• CC. WLAN performance analysis baseline documentation
• DD. Wired network performance analysis andbaseline documentation
• EE. Training of the IT staff on WLAN operational security
• FF. User density planning and AP client association thresholds

You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

• AA. Performingprotocol analysis with a single wireless adapter that is scanning all channels in use
• BB. Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey
• CC. Configuring DSCP-to-802.11e QoS maps on the handset for each access category.
• DD. Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.

What terms accurately complete the following sentence? The IEEE 802.11-2012 standard specifies mandatory support of the cipher suite for Robust Security Network Associations, and optional use of the cipher suite, which is designed for use with pre-RSNA hardware.

• AA. CCMP, TKIP
• BB. 802.1X/EAP, WEP
• CC. TLS, SSL
• DD. RC5, RC4

When performing a site survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the site surveyor, keep in mind?

• AA. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration.
• BB. The omni-directional antennas of the access points should beoriented parallel to the floor to maximize the coverage pattern across as many floors as possible.
• CC. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors.
• DD. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey.

Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility of both OFDM and HR/DSSS? (Choose 2)

Select 2 answers.

• AA. HR/DSSS (802.11b)
• BB. OFDM (802.11a)
• CC. ERP (802.11g)
• DD. HT (802.11n)
• EE. CCK (802.11b)
• FF. VHT (802.11ac)

In an 802.11n 2.4 GHz BSS, what prevents eachstation from using the full network bandwidth (e.g. 130 Mbps) for user data throughput when multiple clients are actively exchanging data with the AP? (Choose 2)

Select 2 answers.

• AA. Radio receiver hardware cannot process data as quickly as it can be transmitted.
• BB. Half of the bandwidth is allocated to uplink traffic and half to downlink traffic.
• CC. The DCF and EDCA coordination functions require backoff algorithms
• DD. WLAN devices cannot detect collisions and must receive positive frame acknowledgment.
• EE. APs do not have sufficient wired connection speeds to the LAN.

In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping? (Choose 2)

Select 2 answers.

• AA. Channels 5 and 10
• BB. Channels 1 and 5
• CC. Channels 3 and 7
• DD. Channels 2 and 8
• EE. Channels 8 and 11
• FF. Channels 10 and 13

What statements about the beamwidth of an RF antenna are true? (Choose 2)

Select 2 answers.

• AA. Thelower the gain of an antenna, the moreap-1 is narrow one or both beamwidths become.
• BB. The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.
• CC. Horizontal and vertical beamwidth are calculated at thepoints in which the main lobe decreases power by 3 dB.
• DD. Horizontal beamwidth is displayed (in degrees) on the antenna’s Azimuth Chart.

When a client moves to a new BSS within an ESS, what steps arepart of the 802.11 reassociation process? (Choose 2)

Select 2 answers.

• AA. The client station transmits a Reassociation Request frame to its current access point.
• BB. The current access point informs the IP gateway of the reassociation.
• CC. The current access point triggers the client’s reassociation service.
• DD. The new access point transmits a Reassociation Response to the client station with a status value.
• EE. The client and new access point create unicast encryption keys.
• FF. The client station transmits a deauthentication frame to the current access point.