CCNP Collaboration 350-801 Exam Questions and Answers PDF

Page: 14 / 20

Question 56

SIP proxies have operations defined in RFC 3261 and supporting extensions. Though no lETF RFC completely defines how SBCs must function. SBCs evolved over the years.

Which two operations demonstrate the high-level differences between SBCs and SIP proxies? (Choose two.)

Options:

Stateful proxies are context-aware and can terminate communication sessions by themselves

SlP proxies add a Via header and optionally a Record-Route header, and the rest of the headers are left untouched

SBCs can modify headers such as To, From, Contact, and Call-D.lt can introduce new headers into the SIP message

SBCs are capable of interworking completely different protocols to set up, modify, and tear down communication sessions. It includes SIP, H.323,and MGCP protocols

SIP proxies are SDP-aware and can change the SDP bodies

Question 57

Refer to exhibit.

A company recently deployed CISCO Jabber Users log in to Jabber by using their email address in a domain named

company com. The users report that they cannot register their telephony services when working from unless they use a VPN. An

engineer runs DNS lookup tool in Cisco Expressway-C to troubleshoot tie What IS me cause of the issue?

Options:

The company com domain must be resolved only in Expressway-E

There is a missing SRV record for the company.com domain.

The TTL value for the company.com is too short.

There must be only response for the company.com domain

Question 58

Refer to the exhibit. Given this "debug isdn q921" output, what is the problem with the PRI?

Options:

Nothing, the PRI is sending keepalives.

Layer 2 is down on the controller.

PRI does not have an IP address configured on the interface.

Layer 1 is down on the controller.

Question 59

An administrator must make a pattern to route calls to two different destinations john doe@company com and jane doe@company com Which type of patterns are needed in the Cisco UCM. and what must the pattern look like?