Cisco CCNP 642-437

Simulation test system

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

1. What are the PHBs that DiffServ use?

A) default, AF, EF, and CS PHBs
B) AF, EF, and CS PHBs
C) AF and EF PHBs
D) default, AF, and EF PHBs
E) resource reservation and admission control

2. Which four Cisco IOS commands are required to configure a DHCP server on a voice gateway to support a voice subnet so that both IP addresses and the IP address of the TFTP server are provided? The voice subnet has an address of 10.1.130.0/24, the default gateway is 10.1.130.1/24, and the TFTP server is located at 10.1.5.2. (Choose four.)

A) ip dhcp pool voice
B) option 150 ip 10.1.5.2
C) default-gw 10.1.130.1
D) option 150 10.1.5.2
E) dhcp pool voice
F) default-router 10.1.130.1
G) network 10.1.130.0 255.255.255.0
H) subnet 10.1.130.1/24

3. Which traditional telephony protocol was used as a basis for the H.323 suite of protocols?

A) Q.921
B) SCCP
C) SS7
D) Q.931

4. How does LLQ ensure that voice traffic is always expedited?

A) LLQ uses CBWFQ to prioritize voice traffic and by dequeuing the voice packets so they can be handled first.
B) LLQ adds WRED to CBWFQ. This allows delay-sensitive data such as voice to be dequeued and sent first.
C) The strict priority queue has a higher weight than the queues in CBWFQ. This weight allows the delay-sensitive data such as voice to be dequeued and sent first.
D) The LLQ strict priority queue allows delay-sensitive data such as voice to be dequeued and sent first (before packets in other queues are dequeued), giving delay-sensitive data preferential treatment over other traffic.

5. When configuring AutoQoS VoIP on a Cisco Catalyst switch how is the configuration performed?

A) Each interface will need either the auto qos voip trust cisco-phone or auto qos voip trust trust on each interface depending on the upstream device.
B) The auto qos voip command is applied globally in the switch.
C) Each interface will need either the auto qos voip cisco-phone or auto qos voip trust on each interface depending on the upstream device.
D) The auto qos voip command is applied to each interface.

Solutions: