Implementing Cisco IOS Unified Communications

Exam : Cisco 640-460
Title : Implementing Cisco IOS Unified Communications

Questions: 1
Which type of voice port will allow the gateway to terminate 23 or 30 circuits from the PSTN or a PBX?
A. FXO
B. FXS
C. PRI T1/E1
D. E&M
E. BRI
Answer: C

Questions: 2
In which of the following scenarios would a Cisco switch supply PoE to an IP phone?
A. In any cases as long as the switch and IP phone are Cisco products.
B. If the Cisco switch supports prestandard PoE and the IP phone supports 802.3af.
C. If the Cisco switch and IP phone both support a common PoE method.
D. Only if both the switch and IP phone use 802.3af PoE.
Answer: C

Question: 3
Identify four SIP servers. (Choose 4.)
A. Registrar
B. Gateway
C. Redirect
D. Location
E. Proxy
Answer: A, C, D, E

Questions: 4
What is the difference between voice VLAN and native VLAN?
A. Voice VLAN uses tagged 802.1Q frames whereas native VLAN uses 802.1P frames.
B. Voice VLAN uses untagged frames whereas native VLAN uses 802.1Q frames.
C. Voice VLAN uses tagged 802.1Q frames whereas native VLAN uses untagged frames.
D. Voice VLAN uses untagged frames only when no PCs are connected behind the phones whereas native VLAN always uses untagged frames.
Answer: C

Questions: 5
Which protocol is used to inform the IP phone of its voice VLAN ID?
A. Cisco keepalives
B. Cisco Discovery Protocol
C. Cisco Spanning Tree Protocol
D. Cisco VLAN Discovery Protocol
Answer: B

Questions: 6
Which value does an administrator assign to option 150 for DHCP to operate correctly in a Cisco Unified Communications Manager Express environment?
A. IP address of the DNS server
B. IP address of the TFTP server
C. MAC address of the TFTP server
D. MAC address of the DHCP server
E. MAC address of the Cisco Unified Communications Manager Express router
F. IP address of the PC on which the Cisco Unity Express module is installed
Answer: B