642-742 Latest Exam (Aug 2018)

[Free] 2018(Aug) Dumps4cert Cisco 642-742 Dumps with VCE and PDF Download 61-70

August 11, 2018

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Implementing Cisco unified Wireless Voice Networks (IUWVN) v2.0

Question No: 61

Which of these statements best describes Cisco Centralized Key Management?

  1. It allows wireless clients to cache their credentials so that, while they are roaming, they do not need to reauthenticate to the wireless infrastructure.

  2. It allows the wireless infrastructure to cache the credentials, thus eliminating the need to conduct a full reauthentication when roaming.

  3. It enables the controller to send directed roam requests to a client in situations when the controller can better service the client on a different AP than the one to which the client is associated.

  4. By caching their credentials, it helps clients save scanning time when looking for a new AP to join.

Answer: B

Question No: 62

A customer has requested their wireless infrastructure to be able to provide voice phones with the ability to indicate to a wireless controller that the call is urgent and needs to be placed immediately. What solution should be recommended to the customer?

  1. enable load-based CAC for voice networks and configure expedited bandwidth

  2. disable load-based CAC for voice networks to turn off the controllers monitoring of the access point#39;s load, allowing for as many voice calls to be placed as necessary

  3. configure expedited bandwidth and change the 802.1p value to 7 for platinum QoS

  4. reconfigure the SSID for KTS based CAC to allow for a more granular handling of voice traffic

Answer: A

Question No: 63

A client#39;s VoWLAN network requires fast roaming on legacy CCXv3 certified devices, which last received an update in 2007. What two fast roaming standards and authentication methods would be supported? (Choose two.)

  1. 802.11r with EAP-TLS

  2. 802.11r with EAP-FAST

  3. 802.11r with LEAP

  4. 802.11r with PEAP

  5. CCKM with EAP-TLS

  6. CCKM with EAP-FAST

  7. CCKM with LEAP

  8. CCKM with PEAP

Answer: F,G

Question No: 64

You are getting complaints from Cisco Unified Wireless IP Phone 7925 users that their

phones are failing to register with the Cisco Unified Communications Manager Express server and are showing the message quot;Registering.quot; What is the problem?

  1. The IP phones are failing to receive a DHCP address from the DHCP server.

  2. There is no ephone configuration for each phone in the Cisco Unified CME device.

  3. The IP phones are failing to receive their firmware files from the TFTP server.

  4. The DHCP server needs to include the command option 66 ip lt;ip addressgt; to serve the appropriate load file.

Answer: C

Question No: 65

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?

  1. unicast AP Multicast Mode

  2. multicast AP Multicast Mode

  3. controller IGMP snooping

  4. broadcast forwarding

Answer: B

Question No: 66

Which three options are benefits of U-APSD? (Choose three.)

  1. synchronization of the transmission and reception of voice frames

  2. bandwidth reservation

  3. optimized power-save mode periods

  4. increased call capacity

  5. priority bandwidth and polling

Answer: A,C,D

Question No: 67 DRAG DROP

Dumps4Cert 2018 PDF and VCE


Dumps4Cert 2018 PDF and VCE

Question No: 68

A client is WME capable and configured for AC_VOICE, but the QoS Priority of 6 is missing when analyzing an 802.11 frame. What three issues need to be investigated? (Choose three.)

  1. WLAN is WMM enabled

  2. DTIM is set to 10

  3. WMM IE present in beacons

  4. WMM IE present in association requests

  5. WMM IE present in association response

  6. WLAN is configured for Platinum QoS

Answer: A,C,E

Question No: 69

What three minimal configurations are required for a correctly scaled multicast configuration using WLC v7.0? (Choose three.)

  1. Enable global multicast mode

  2. Enable IGMP snooping

  3. Configure IGMP timeout for 60 seconds

  4. Configure IGMP query interval for 20 seconds

  5. Enable WLAN multicast VLAN feature

  6. Enable AP multicast mode for multicast

  7. Enable AP multicast mode for Unicast

Answer: A,B,F

Question No: 70

When verifying a voice survey with a Cisco 7925G phone in site survey mode, what information can be found in the CU field?

  1. Channel Utilization

  2. Connected Users

  3. Channel Used

  4. Channel Unavailable

  5. Concurrent Users

  6. CUCM Users

Answer: A

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