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Cisco 300-820 Exam With Confidence Using Practice Dumps

Exam Code:
300-820
Exam Name:
Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)
Certification:
Vendor:
Questions:
207
Last Updated:
Aug 24, 2026
Exam Status:
Stable
Cisco 300-820

300-820: CCNP Collaboration Exam 2025 Study Guide Pdf and Test Engine

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

Question 1

A company identifies a fraudulent toil situation. An engineer reviews the Cisco UCM call detail records and discovers that fraudulent calls originate from a Cisco Expressway-C server and are then routed to a 10-digit PSTN number. What must be configured to limit incoming Expressway calls to the internal Cisco UCM range of extensions 5XXXX?

Options:

A.

calling search space that contains all the partitions on the Unified Communications Manager SIP trunk to Expressway

B.

call policy rule from the DNS zone to allow a destination regex pattern of \d.*@abc.com

C.

unique search rule with a regex pattern of [5]\d{4}@abc.com that targets the neighbor zone

D.

call policy rule from the DNS zone to allow a destination regex pattern of .*@abc.com

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Question 2

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.

Question 3

Refer to the exhibit.

Mobile and remote access is being added to an existing B2B deployment and is failing.

When the administrator looks at the alarms on the Expressway-C, the snippets are shown. Which configuration action should the administrator take to fix this issue?

Options:

A.

The listening port on the Expressway-C for SIP TCP must be changed to a value other than 5060

B.

The listening port on the Expressway-C for SIP TLS must be changed to a value other than 5061

C.

The listening port on the Cisco UCM for the Expressway-C SIP trunk must be changed to something other than 5060 or 5061

D.

The listening port on the Cisco UCM for the Expressway-C SIP trunk is set to something other than 5060 or 5061. It must be set to 5060 for insecure and 5061 for secure SIP