Question 1

What is a description of the DiffServ model used for implementing QoS?

Options :

A : AF43 has higher drop precedence than AF42 but lower drop precedence than AF41

B : RTP traffic from voice and video calls is marked EF and placed in the same queue

C : AF41 has higher drop precedence than AF42, which has higher drop precedence than AF43

D : Voice and video calls are marked with different DSCP values and placed in different queues

Answer: D

Question 2

What is the element of Cisco Collaboration infrastructure that allows Jabber clients outside of the network to register in Cisco Unified Communications Manager and use its resources?

Options :

A : Cisco IM and Presence node

B : Cisco Unified Border Element

C : Cisco Expressway

D : Cisco Prime Collaboration Provisioning server

Answer: C

Question 3

0001800001

Refer to the exhibit. An administrator is attempting to register a SIP phone to a Cisco UCM but the registration is failing. The IP address of the SIP Phone is

10.117.34.222 and the IP address of the Cisco UCM is 10.0.101.10. Pings from the SIP phone to the Cisco UCM are successful. What is the cause of this issue and how should it be resolved?

Options :

A : An NTP mismatch is preventing the connection of the TCP session between the SIP phone and the Cisco UCM. The SIP phone and Cisco UCM must be set with identical NTP sources.

B : The certificates on the SIP phone are not trusted by the Cisco UCM. The SIP phone must generate new certificates.

C : DNS lookup for the Cisco UCM FQDN is failing. The SIP phone must be reconfigured with the proper DNS server.

D : A network device is blocking TCP port 5060 from the SIP phone to the Cisco UCM. This device must be reconfigured to allow traffic from the IP phone.

Answer: D

Question 4

Refer to the exhibit.

A collaboration engineer configures Cisco UCM to act as a DHCP server. What must be done next to configure the DHCP server?

Options :

A : Restart the TFTP service under Cisco Unified Serviceability.

B : Add a DHCP subnet to the DHCP server under Cisco UCM Administration.

C : Add the new DHCP server to the primary DNS server.

D : Restart the Cisco DHCP Monitor Service under Cisco Unified Serviceability.

Answer: B

Question 5

An engineer must configure a dial plan tor a new Cisco UCM cluster. Standard local route groups must be used for all local calls. After the route pattern, route list and route groups are configured, which settings must the engineer configure for the standard local route groups?

Options :

A : device pool

B : voice gateway

C : trunk group

D : SIP trunk

Answer: A

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