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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. How does DiffServ deliver QoS across the network?

A) DiffServ delivers a particular kind of service based on either a flow-based behavior or a per-hop behavior, depending on how the traffic was marked and classified at ingress.
B) DiffServ classifies and marks traffic at each node in the network.
C) When using DiffServ, the network tries to deliver a particular kind of service that is based on the QoS that is specified by each packet.
D) DiffServ tries to deliver a particular level of service on a per-flow basis across the network.

2. Switch port fa0/2 has been configured to connect an IP phone with an attached PC. Given the set of commands in the example, where does the trust boundary lie?
interface fa0/2
mls qos trust cos mls qos trust device cisco-phone
switchport voice vlan 112

A) between the IP phone and the PC
B) between the IP phone and the switch
C) between the PC port and the LAN port on the IP phone
D) between the access layer switch and the distribution layer switch

3. Which Cisco Unified Border Element configuration supports H.323 protocol interworking and address hiding?

A) voice services h323 to h323 h323 interworking media flow-through
B) voice services voip allow-connections h323 to h323 media flow-around
C) voice service voip all-connections h323 to r323
D) voice services h323 to h323 h323 interworking media flow-around

4. Which Cisco Unified Communications Manager component acts as a voice switch between multiple telephony circuits and can provide signaling and media conversion?

A) PBX
B) gatekeeper
C) gateway
D) media exchanger

5. Which of these is "trusted" when the auto qos voip command is configured with the trust parameter on routers?

A) DES keyword
B) DSCP
C) source address
D) MAC address of sender

Solutions: