Question 1

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 2

Which field of a Real-Time Transport Protocol packet allows receiving devices to detect lost packets?

Options :

A : timestamp

B : CSRC (Contributing source ID

C : sequence number

D : SSRC (Synchronization source identifier)

Answer: C

Question 3

What are two characteristics of priority queuing? (Choose two.)

Options :

A : It allocates an equal share of bandwidth to each flow.

B : It applies strict priority to user-defined traffic classes.

C : It ensures that critical traffic queues are serviced first.

D : It guarantees bandwidth for user-defined traffic classes.

E : It places traffic into one of four queues.

Answer: C,E

Question 4

What causes poor voice quality and video pixelization in a video call?

Options :

A : The QoS is configured incorrectly.

B : A firewall is blocking the RTP ports.

C : Cisco Unified Communications Manager is configured to use G.711 instead of G.729.

D : 1 Gbps network ports are used instead of 100 Mbps network ports.

Answer: A

Question 5

When designing the capacity for a Cisco UCM 12.x cluster, an engineer must decide which VMware template will be used for each node. What is the lowest number of users supported in a template and the highest number of users in a template?

Options :

A : 750 and 15,000 users

B : 750 and 10,000 users

C : 500 and 10,000 users

D : 1000 and 10,000 users

Answer: D

Confidently Practice Online with Free 350-801 Exam Cram

Buying Options: