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300-820 Exam Dumps : Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)

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Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI) Questions and Answers

Question 1

Which two internal SIP endpoints behind a firewall place calls to external devices? (Choose two.)

Options:

A.

An Expressway-C communicates with the internal endpoint and forwards the media to and from an Expressway-E.

B.

A Cisco Endpoint is configured with a publicly routable static NAT SIP address to advertise instead of is private IP address.

C.

An Expressway-C communicates directly with the remote party using the ICE protocol

D.

An Expressway-E is used as a VPN server to allow remote SIP edge servers to connect calls

E.

An Expressway-C rewrites the SIP SDP to advertise its own IP address to the external party.

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Question 2

An employee has recently left an organization and a manager suspects that this employee may have made changes to the system that no one is aware of. Mobile and Remote Access registration is not working. Internal communications appear to be working, but no external system is able to register or call anywhere. While investigating this problem, it is discovered that no internal systems are able to call externally either. What is the TraversalZone missing that is causing this issue?

Options:

A.

SIP trunk to the DefaultZone

B.

route pattern to the DefaultZone

C.

link to the DefaultZone

D.

pipe to the DefaultZone

Question 3

Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints. How does the Expressway-C and Expressway-E communicate?

Options:

A.

Expressway-C establishes an outgoing request to Expressway-E, enabling the Expressway-E in the DMZ to notify the internal Expressway-C of an incoming call from an external endpoint.

B.

Internal endpoints are registered to Expressway-E in the DMZ. Expressway-C, which is also in the DMZ, will receive and make calls on behalf of Expressway-E because they are in the same network.

C.

Expressway-E establishes an outgoing request to Expressway-C, enabling the Expressway-C in the DMZ to notify the internal Expressway-E of an incoming call from an external endpoint.

D.

Internal endpoints are registered to Expressway-C in the DMZ. Expressway-E, which is also in the DMZ, will receive and make calls on behalf of Expressway-C because they are in the same network.