642-742 Q&As Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 Pass Cisco 642-742 Exam with 100% Guarantee Free Download Real Questions & Answers PDF and VCE file from: 100% Passing Guarantee 100% Money Back Assurance Following Questions and Answers are all new published by Cisco Official Exam Center 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 1 / 14
QUESTION 1 A network engineer is configuring CAC on a WLC. If CAC is configured with 85% of the total radio bandwidth on a 5-GHz radio, how many clients can be accommodated? A. 5 B. 12 C. 15 D. 22 QUESTION 2 Refer to the exhibit. An engineer has performed a packet capture on a wireless voice user who is experiencing connectivity problems. Which problem does the exhibit display? A. dropped call B. no audio C. one-way audio D. choppy audio E. delays in voice conversation Correct Answer: C QUESTION 3 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 2 / 14
A Cisco WLC v7.0 is configured with the default setting for wired and wireless QoS. When a wireless client sends a voice packet to the AP, how does the AP mark the outer CAPWAP header when the packet is sent to the Cisco WLC v7.0? A. The AP uses the wireless priority value to create a matching 802.1p value in the CAPWAP header. B. The AP uses the wireless priority value to create a matching DSCP value in the CAPWAP header. C. The AP uses the wireless priority value to create both a matching 802.1p and DSCP value in the CAPWAP header. D. The AP does not match the value to the CAPWAP header, which results in best effort. QUESTION 4 Wireless IP phone users are complaining that during the day there are certain points in the facility where voice quality is poor. How should you troubleshoot this issue? A. Perform a detailed analysis of the voice call quality from end to end. B. Ask the users to capture voice quality statistics from their wireless IP phones the next time they have issues. C. Go into the Cisco WLC and monitor client details for WMM issues. D. Locate the APs in question and use the Cisco WLC to enable TSM to capture WLAN voice traffic statistics. QUESTION 5 Which two options allow a Cisco Unified Wireless IP Phone 7925G to conserve its battery? (Choose two.) A. PS-Poll B. S-APSD C. U-APSD D. 802.11h E. 802.11r Correct Answer: AC QUESTION 6 Refer to the exhibit. 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 3 / 14
A customer is looking to deploy local radius authentication on their WLAN controller. After configuration has been completed, the administrator found that computers could authenticate; however, the VoIP phones could not. What is the problem given the output? A. The EAP request-timeout is too short for the wireless phone to process the PAC from the WLAN controller. B. The EAP Broadcast Key interval is set to 1 hour however should be 8 hours. C. EAPOL-Key Max Retries should be set to 12 to ensure the wireless phone can authenticate. D. EAPOL-Key timeout should be set to at least 20,000 Milliseconds to allow the PAC to be processed. Correct Answer: A QUESTION 7 Which four hardware components are required to make an end-to-end unified wireless VoIP solution? (Choose four.) A. Cisco Mobility Services Engine server B. wireless IP phone C. firewalls D. CAPWAP access points E. Cisco Wireless Control System F. WLAN controller G. autonomous access points H. Cisco Unified Communications Manager Correct Answer: BDFH QUESTION 8 An engineer has installed a new voice WLAN. Which three configurations would the engineer verify for QoS on the controller? (Choose three.) 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 4 / 14
A. IEEE 802.1X and Cisco Centralized Key Management B. Platinum QoS for the VoWLAN C. WMM allowed D. client load balancing E. client band select F. DHCP address assignment required Correct Answer: ABC QUESTION 9 Refer to the exhibit. An engineer notices VoWLAN calls getting dropped and uses Spectrum Expert to analyze the RF utilization. Based on the Spectrum Expert capture, what two options describe the interferer and how to mitigate it? (Choose two.) 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 5 / 14
A. Radar interference B. Bluetooth interference C. microwave oven interference D. DECT 6.0 Cordless phone interference E. Disable UNII-2 channels F. Disable DFS G. Disable DCA H. Disable RRM Correct Answer: AE QUESTION 10 Enhanced distributed channel access provides contention-free access to the channel for a period. What is the name of this amendment? A. WMM B. 802.1q C. 802.1p D. 802.1e E. 802.1d QUESTION 11 What are the results that you can expect when performing a Cisco WLC v7.0 link test on a wireless IP phone? A. The device must be running at least Cisco Compatible Extensions v2 or higher, for the test and results to be successful. B. The device must be running at least Cisco Compatible Extensions v4 or higher, for the test and results to be successful. C. A device that is not running a version of Cisco Compatible Extensions will show only packets that are sent and received. D. A device that is not running a version of Cisco Compatible Extensions will show packets that are sent, packets that are received, local signal strength, and SNR. 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 6 / 14
QUESTION 12 Using proper VoWLAN design practice, what would be the Cisco recommended total number of calls for a properly designed 802.11g cell to ensure call quality? A. 4 B. 7 C. 14 D. 20 E. 25 F. 27 Correct Answer: C QUESTION 13 Which two statements correctly describe WLAN QoS configuration related to WMM? (Choose two.) A. 7920 AP CAC mode is not compatible with WMM policy and cannot be used at the same time. B. 7920 Client CAC mode is not compatible with WMM policy and cannot be used at the same time. C. 7920 AP CAC and 7920 client CAC modes are for 802.11b/g/n only. D. 7920 AP CAC and 7920 client CAC modes are for 802.11a/n only. E. 7920 AP CAC and 7920 client CAC modes are for 802.11a/b/g/n. Correct Answer: BC QUESTION 14 A customer has configured a wireless LAN controller and set the 802.11a/n data rates. All rates are enabled where 5.5 Mbps, 11 Mbps, and 24 Mbps are set to Mandatory. What will APs send over the 24 Mbps data rate? A. channel announcements B. beacons C. DTPC support D. multicast broadcast 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 7 / 14
QUESTION 15 When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.) A. latency B. jitter C. throughput D. packet loss E. client association F. number of users on the network Correct Answer: ABD QUESTION 16 Which two multicast modes are valid for use with Ethernet bridging on a mesh AP? (Choose two.) A. mesh bridge in B. regular C. bidirectional bridge D. in E. out Correct Answer: BD QUESTION 17 What is the best practice for configuring data rates for an 802.11g VoWLAN deployment? A. Configure mandatory data rates of 12 and 54 Mb/s. Disable data rates below 6 Mb/s, and configure all other data rates as supported. B. Configure a mandatory data rate of 6 Mb/s. Disable data rates below 6 Mb/s, and configure all other data rates as supported. C. Configure a mandatory data rate of 11 Mb/s. Disable data rates below 11 Mb/s, and configure all other data rates as supported. D. Configure a mandatory data rate of 12 Mb/s. Disable data rates below 12 Mb/s, and configure all other data rates as supported. 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 8 / 14
QUESTION 18 A support engineer received a ticket involving issues with voice over wireless. The customer has asked the engineer to verify their wireless deployment for voice utilizing their WCS server. What is a capability of the WCS voice readiness tool? A. Traffic Stream metric reporting B. voice statistics via call re-play C. call location tracking D. non voice SSID contention graphs Correct Answer: A QUESTION 19 After debugging a VoWLAN client that is experiencing dropped calls, it has been found that the client is requesting a new DHCP address every time the client roams to a new AP. What should be configured in the WLAN? A. Select the DHCP server override option. B. Decrease the DHCP allocated lease time to 0. C. Deselect the DHCP address assignment required option. D. Select the central DHCP processing option. E. Increase the DHCP allocated lease time for wireless clients. F. Deselect the enable session timeout. Correct Answer: C QUESTION 20 A network engineer observes a spike in controller CPU overhead and overall network utilization after enabling multicast on a controller with 500 APs. What feature is necessary to correct the issue? A. unicast AP Multicast Mode B. multicast AP Multicast Mode C. controller IGMP snooping D. broadcast forwarding Correct Answer: B 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 9 / 14
QUESTION 21 A client reports that video is not streaming. The administrator determines the client is connecting at a data rate of 12 Mbps and is trying to stream to a valid multicast address on the network. What three items should the administrator check next to troubleshoot the issue? (Choose three.) A. SSID has been configured to allow multicast-direct and multicast-direct has been enabled globally. B. IGMP snooping is turned off because the client cannot request to join a group, only access points can. C. Video-stream for the multicast video is configured in the controller. D. SSID has been set for a QoS value of Platinum. E. SSID has been set for a QoS value of Gold. F. RTSP is used to stream the video due to wireless multicast not using acknowledgements. Correct Answer: ACE QUESTION 22 Which two statements best describe streaming video? (Choose two.) A. Video streams require maximum quality compression and decompression. B. Video streams require a high speed of compression only. C. H.323 codecs are commonly used. D. MPEG codecs are commonly used. Correct Answer: AD QUESTION 23 An engineer finishes configuring a voice over wireless deployment. However, during the testing phase, the 7925 series phones are not able to complete calls and display Network Busy. CAC has been configured for the wireless system. What action should the engineer take next to troubleshoot the issue? A. ensure the lowest data rate is 12Mbps and set to Mandatory, and verify there is enough allocated bandwidth to support voice calls B. check that the lowest data rate is 5.5Mbps to support TSPEC, and verify that the SSID is set to Platinum C. modify the SIP CAC Access Control List on the controller to permit voice traffic for 7925 phones D. turn off traffic stream metrics Correct Answer: A 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 10 / 14
QUESTION 24 Which DHCP option is used by Vocera badges to reach a Cisco Unified Communications Manager? A. Set the option to 66. B. Set the option to 43. C. Set the option to 150. D. No option is required. QUESTION 25 A network engineer is viewing the QBSS information in a packet sniff. Which two QBSS characteristics are crucial for successful troubleshooting? (Choose two.) A. When only WMM is enabled, information element number 2 QBSS Load information element is sent out in the beacons and probe responses. B. When the client CAC limit is supported, information element number 1 is sent out in the beacons and probe responses on the bg radios. C. When the client CAC limit is supported, information element number 2 is sent out in the beacons and probe responses on the bg radios. D. When only WMM is enabled, information element number 1 QBSS Load information element is sent out in the beacons and probe responses. Correct Answer: AB QUESTION 26 IGMP snooping has been enabled on a Cisco WLC v7.0, along with any other configurations that are required for wireless multicast. Which statement describes an IGMP leave message to a router when IGMP snooping is enabled? A. The message is sourced from the wireless client. B. The message is sourced from the Cisco WLC management interface. C. The message is sourced from the Cisco WLC virtual interface. D. The message is sourced from the Cisco WLC dynamic interface. E. No message is sent, and the membership is timed out. Correct Answer: E 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 11 / 14
QUESTION 27 When setting up a VoWLAN deployment with Nokia E-Series dual-mode phones and Cisco 7925G phones, the engineer notices the Nokia phones work over cellular but fail over WiFi, whereas the Cisco phones work fine. What setting would cause this behavior? A. SSID set to non-broadcast B. SSID set to broadcast C. CCKM disabled D. CCKM enabled E. WPA Enterprise used F. WPA2 Enterprise used Correct Answer: A QUESTION 28 Which three statements are true about load-based Call Admission Control? (Choose three.) A. grants a VoWLAN client-initiated call based on the number of active clients associated to the AP B. grants a VoWLAN client-initiated call based on channel bandwidth capacity C. uses the 802.11i specifications D. uses ADDTS action frames E. requires a WMM-enabled client Correct Answer: BDE QUESTION 29 A WLC v7.0 is configured for multicast with WLC-to-AP multicast mode using IP address 239.10.10.10, IGMP snooping enabled, and all other parameters set to default. Which two statements describe how a wired ingress broadcast and multicast frame are handled? (Choose two.) A. WLC will forward the broadcast frame to all APs and then to all WLANs. B. WLC will forward the broadcast frame to all APs and then to only WLANs with active clients. C. WLC will forward a broadcast frame to only APs and their respective WLANs with active clients. D. WLC will drop the broadcast frame. E. WLC will forward the multicast frame to all APs and then to all WLANs. F. WLC will forward the multicast frame to all APs and then to only WLANs with active clients. 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 12 / 14
G. WLC will forward a multicast frame to only APs and their respective WLANs with active clients. H. WLC will drop the multicast frame. F QUESTION 30 A network engineer wants the DSCP marking to align with the 802.11e access category video. What will this marking be? A. 4 B. 34 C. 5 D. AF31 Correct Answer: B 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 642-742 PDF Dumps 642-742 Exam Questions 642-742 Braindumps 13 / 14
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