[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 121-130

EnsurepassQUESTION 121 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  < /font>     QUESTION 122 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.   Correct Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 111-120

EnsurepassQUESTION 111 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   Correct Answer: D     QUESTION 112 How much overhead i s added by CAPWAP encapsulation?   A. 4 B B. 14 B C. 28 B D. 44 B E. 50 B Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 101-110

EnsurepassQUESTION 101 Assuming 30% total overhead and no other clients on an AP, how many single stream 802.11n 2.4GHz IP cameras that output a 6 Mbps video feed could one 802.11n AP support?   A. 4 cameras B. 8 cameras C. 12 cameras D. 16 cameras   Correct Answer: B     QUESTION 102 Refer to the exhibit. Which three statements describe the WLC configuration? (Choose three.)     A. CAC values are relatively high. B. CAC values are relatively Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 91-100

EnsurepassQUESTION 91 Clients are experiencing artifacts in multicast video even though the network was recently upgraded to 802.11n APs. What three configuration changes will be most effective to improve performance? (Choose three.)   A. increase mandatory data rate B. enable 40 MHz wide channels C. enable Call Admission Control D. increase QoS marking on multicast E. enable VideoStream F. disable Multicast Messaging   Correct Answer: BCE     QUESTION 92 Which Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 81-90

EnsurepassQUESTION 81 A corporation has a Cisco Unified Wireless Network that has been deployed for voice coverage. The wireless data rates have been tuned to mandatory rates of 18 Mbps and 36 Mbps. Some wireless clients have been experiencing drops streaming multicast video while moving throughout the building. What is the cause of the drop in video?   A. Clients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps. B. Clients are not roaming due to coverage. This is Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 71-80

EnsurepassQUESTION 71 A network engineer is limiting the number of voice calls on an AP. Which technology should be used?   A. SCCP B. CAC C. SIP D. RTP   Correct Answer: B     QUESTION 72 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. Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 61-70

EnsurepassQUESTION 61 A wired packet that is marked for QoS priority CS4 arrives on VLAN-4 at Cisco WLC v7.0, with a destination of a WLAN SSID-4. The Cisco WLC is configured for the wired and wireless QoS level of Silver. The infrastructure routers and switches have incorrect QoS configurations. They have mismarked the CAPWAP outer header to a QoS priority EF. Which statement is true about how the packet is sent from the AP to the final WMM wireless client?   A. The AP sends the packet Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 51-60

EnsurepassQUESTION 51 Refer to the exhibit. A network engineer is troubleshooting wireless voice issues on a network using EAP-FAST with PAC provisioning. Authentication is working properly on laptops but is failing on phones. What configuration change is needed?     A. Identity Request Timeout to 60 B. Identity Request Timeout to 10 C. Request Timeout to 5 D. Request Timeout to 30 E. EAPOL-Key Max Retries to 1 F. EAPOL-Key Max Retries to 5   Correct Answer: D Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 41-50

EnsurepassQUESTION 41 Which mechanism detects if VoWLAN clients are experiencing poor signal-to-noise ratio values and causes the power of APs to increase as needed in order to rectify signal-to- noise issues?   A. CCA B. RSSI C. 802.11h D. CHD E. QBSS Correct Answer: D     QUESTION 42 Controllers in a mobility group must all have which of these characteristics in common?   A. mobility group name, version of controller code, and Control and Provisioning of Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 31-40

EnsurepassQUESTION 31 Wireless phones at a customer's site often experience a fast busy signal when trying to initiate calls. What two actions address this issue? (Choose two.)   A. decrease CAC Max Bandwidth B. increase CAC Max Bandwidth C. increase CAC Reserved Bandwidth D. decrease cell size E. increase cell size   Correct Answer: BD     QUESTION 32 An engineer has been assigned the task of deciding the cell overlap for a wireless voice deployment. Which Cisco Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 21-30

EnsurepassQUESTION 21 Refer to the exhibit. What two items need to be supported on the VoWLAN phones in order to take full advantage of this WLAN configuration? (Choose two.)     A. 802.11e B. WMM C. 802.11a D. 802.11r E. APSD F. SIFS   Correct Answer: AB     QUESTION 22 IGMP snooping has been enabled on a Cisco WLC v7.0, along with any other configurations that are required for wireless multicast. After a wireless client has joined a multicast group, Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 11-20

EnsurepassQUESTION 11 Which four statements describe the attributes of streaming video? (Choose four.)   A. Packet loss is limited to 1 percent. B. Packet loss is limited to 5 percent. C. One-way latency is limited to 150 ms. D. One-way latency is limited to a few seconds. E. Jitter is limited to 30 ms. F. Jitter has no significant requirements. G. QoS marking is at CS4. H. QoS marking is at AF41.   Correct Answer: BDFG         QUESTION 12 What Read more [...]

[Free] Download Latest (May 2016) Cisco 642-742 Real Exam 1-10

EnsurepassQUESTION 1 Which attribute does the VoWLAN Readiness Tool of WCS v7.0 use to predict acceptable conditions?   A. SNR B. RSSI C. PER D. WMM E. QBSS   Correct Answer: B     QUESTION 2 What is the recommended minimum speed at the edge of the cells in an 802.11g network for a good Cisco VoWLAN deployment?   A. 11 Mb/s B. 12 Mb/s C. 18 Mb/s D. 36 Mb/s E. 54 Mb/s   Correct Answer: B     QUESTION 3 What protocol can be enabled Read more [...]