Designing Cisco Wireless Enterprise Networks (WIDESIGN)

Transcription

1 Designing Cisco Wireless Enterprise Networks (WIDESIGN)

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4 QUESTION 1 Which two types of information must be included in the installation inventory portion of the post-installation report? (Choose two.) A. all AP, controller, and MSE administrator credentials B. the names, locations, IP addresses, MAC addresses, etc. for every AP, controller, and MSE in the WLAN C. a layout of the rack that the equipment is installed D. results of the coverage audit performed with the site survey mapping tool E. the number and type of all WLAN clients and tags Answer: AB

5 QUESTION 2 An engineer plugs in a Cisco Aironet 2700 Series Access Point and it is running in low power. Which three power requirements should be verified? (Choose three.) A ac compliant B at compliant C. AP requires 43 VDC to function in full power. D. AIR-PWRINJ3 power injector should be used. E. AP requires 57 VDC to function in full power. F. AIR-PWRINJ4 power injector should be used. Answer: BEF

6 QUESTION 3 An n implementation is being discussed. Users are satisfied with the potential Mbps throughput of new n APs. Which three bandwidth requirements are used to calculate per client bandwidth through an n AP network? (Choose three.) A. 450 Mbps throughput is the client max for 5-GHz radio. B. Channel bonding on 5 GHz is required for a client to have a 300 Mbps WiFi link. C. 300 Mbps throughput is the client max for 2.4-GHz radio. D. The remaining bandwidth is divided per device when more clients are connected to one AP. E. 100 Mbps Ethernet switch port is a potential bottleneck. F. CleanAir helps clear noise for n channel bonding to work. Answer: ACE

7 QUESTION 4 As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which three areas is the engineer most likely expect to find sources of 2.4 GHz and 5 GHz RF noise? (Choose three.) B. magnetic resonance imaging C. laboratory D. X-ray radiography E. Gamma Knife radiation treatment F. Kitchen Answer: ACF

8 QUESTION 5 What is the recommended minimum speed at the edge of the cells in an g network for a good Cisco VoWLAN deployment? A. 11 Mb/s B. 36 Mb/s C. 12 Mb/s D. 18 Mb/s Answer: C

9 QUESTION 6 An engineer is installing a wireless network in an industrial area with extreme temperatures and a significant amount of dust. Which enclosure should be used to protect the APs? A. ACU B. ADU C. NEMA D. WLSE Answer: C

10 QUESTION 7 Which three recommendations must be taken into consideration when an engineer is installing a new Voice WLAN? (Choose three.) A. Use the Cisco wireless phone site survey client utility. B. Use a separate Cisco Wireless Lan Controller. C. Enable load balance on voice WLANs. D. Maintain -67dBM as a minimal RSSI. E. Set data for 2.4 GHz and voice for 5 GHz using separate SSIDs. F. Enable lower data rates for 2.4-GHz data WLAN. Answer: ADE

11 QUESTION 8 An engineer is assigned to replace an older data-grade autonomous wireless network with a Cisco controller-based wireless network to meet Voice over WLAN needs. The customer also wants all existing cable infrastructure to be reused and no new cable be specified. How should the engineer respond to the customer s requirements? A. Implement the wireless network with the restraints and decrease the TPC neighbor threshold to increase Tx power to provide overlapping cell coverage at sufficient SNR to provide for Voice over WLAN service. B. Implement the wireless network with the restraints and utilize high-gain antenna to provide overlapping cell coverage at sufficient SNR to provide for Voice over WLAN service. C. Inform the customer that the network will not likely function as desired and a post install survey with the possibility of some new cable would be recommended. D. Inform the customer that it is not possible to provide coverage and quality for Voice over WLAN using existing AP locations and an entire overbuild will be necessary. Answer: B

12 QUESTION 9 A Cisco 7925 phone at a client s location is not registering with CUCM. The engineer analyzes a packet capture, sees that the phone receives an IP, and downloads the proper configuration file from TFTP successfully. What type of messages should the phone be sending at this point? A. H.245 B. H.323 C. MCGP D. SCCP Answer: D

13 QUESTION 10 What are two advantages of conducting an active survey versus a passive survey when verifying RF coverage? (Choose two.) A. verifies packet loss B. verifies roaming C. verifies SNR D. verifies signal level E. verifies interferers Answer: AB

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