最新的CA PW0-250免費考試真題

問題1

In a large enterprise (5000+ wireless users), by what recommended methods are IP addresses and VLANs assigned to different clients associated to the same AP? (Choose 3)

A. Upstream AAA servers dynamically assign VLANs to each user or group profile

B. Each BSSID is assigned a unique VLAN to help manage the size of broadcast domains on the wired network

C. Multiple VLAN pools are designated for an SSID and user IP addresses are selected in a round-robin fashion from the associated pools.

D. Each SSID is mapped to a static VLAN assignment

E. In a centralized data forwarding model, clients automatically receive an IP address on the native VLAN of the AP's Ethernet access port.

F. Radio signal metrics (RSSI, SNR, etc.) of WLAN clients are triangulated for location-based VLAN assignment during association

G. The configuration profile of the client supplicant is hard-coded with a VLAN ID.

正確答案: A,C,D

問題2

Your customer location is equipped with DAS, originally deployed to relay a GSM signal indoors and provide 802.11 data coverage to static stations. What type of wireless application would be least likely to be supported by this RF distribution model?

A. FTP over implicit TLS/SSL

B. On-demand video streaming over wireless

C. Data connection with frequent roaming

D. Location-based services for wireless assets or RFID tags

E. VoWLAN if the codec is G.729.

正確答案: D

問題3

You are site surveying a network for VoWiFi. You have positioned an AP for a manual survey and are moving away from the AP with a phone in Survey Mode in your hand and you are reading the RSSI value of the signal received from the AP. You have previously determined that the noise floor was approximately -94 dBm on this floor of the building. The phone's documentation does not specify a recommended RSSI or SNR value for best performance. Based on the information provided and the type of device (VoWiFi phone) you are deploying, what minimum RSSI should you plan for in all areas you are monitoring and where VoWiFi service is desired?

A. - 75 dBm

B. - 58 dBm

C. - 72 dBm

D. - 62 dBm

E. - 67 dBm

正確答案: E

問題4

According to WLAN security design best practices, what is true of the EAP properties shown in the exhibit?

A. The "Trusted Root Certification Authorities" list is provided to identify the certificate that the client should send to the AS for client authentication.

B. The "Validate server certificate" checkbox should always be checked to prevent MITM attacks from rogue authentication servers.

C. The "Enable Identity Privacy" checkbox and anonymous name field are only useful for networks supporting EAP-LEAP.

D. The "Do not prompt user to authorize new servers or trusted certification authorities" box should be checked only for administrative users.

E. The "Validate server certificate" checkbox should be checked if you purchased a third-party SSL certificate for the AS, but left unchecked if you have a self-signed certificate for the AS.

正確答案: B

問題5

What is a radome?

A. The unit used to measure the signal reflected backward by the end of a cable.

B. The unwanted signal coverage provided by either side or back lobes in directional antennas.

C. A weatherproof piece of plastic covering an antenna or antenna system.

D. A piece of metal positioned behind APs mounted on outdoor poles, designed to limit the butterfly effect.

E. A type of semi-circular ceiling found in atriums and that is a heavy cause of RF reflection.

正確答案: C

問題6

In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing 802.11b solution. You have chosen a dual-band 802.11n infrastructure product for this purpose. Your client applications include: Handheld scanners - for inventory management
Toughbooks (laptops) - mounted on forklifts for inventory and workflow management
VoWiFi phones - used by select employees throughout the facility
You are evaluating all of the 802.11n enhancements and determining which features to enable for your environment and applications.
In this scenario, what 802.11n enhancements should NOT be enabled on the 2.4 GHz radio of the new APs? (Choose 2)

A. 40 MHz channels

B. MRC

C. Block Acknowledgments

D. Frame aggregation

E. Short guard intervals

F. STBC

正確答案: A,E

最新的CA Certified Wireless Design Professional (CWDP) - PW0-250免費考試真題

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