Free Cisco 300-820 Exam Questions

Become Cisco Certified with updated 300-820 exam questions and correct answers

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Total 175 Questions | Updated On: Mar 10, 2025

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Question 1

An engineer must enable the communication between two separate Expressway-C servers to allow inbound and outbound calling between different endpoints registered on each server. Which configuration must happen?

A : nfigure a traversal zone on each server with a destination of the other Expressway-C.

B : nfigure a neighbor zone on each server with a destination of the other Expressway-C

C : nfigure a transform on each server to strip the port numbers at the end of the alias.

D : nfigure a transform on each server to convert the calling alias into the called alias.

Answer: C

Question 2

Which two items are configured when deploying a B2B collaboration solution? (Choose two.)

A : P trunk between Cisco Unified Communications Manager and Cisco Expressway-C

B : search rules in Cisco Expressway-E

C : SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-E

D : traversal client on a Cisco Expressway-E

E : zone on a Cisco Expressway-C

Answer: A,B

Question 3

How does an administrator configure an Expressway to make sure an external caller cannot reach a

specific internal address?

A : ock the call with a call policy rule in the Expressway-E

B : the specific URI in the firewall section of the Expressway and block it

C : nfigure FAC for the destination alias on the Expressway

D : a search rule route all calls to the Cisco UCM

Answer: C

Question 4

An Expressway pairs deployed for Mobile and Remote Access. An administrator installs a new server certificate on the Expressway-E. After installing the new certificate, the UC Traversal zone between Expressway-C and Expressway-E is active. Still, Jabber Mobile and Remote Access clients cannot log in over the Expressway. The certificate Common Name is the FQDN of Expressway-E, “expe01 example.com”, and the certificate contains no additional names. Which Subject Alternate Name must be added to the certificate to allow Jabber Mobile and Remote Access clients to log in successfully?

A : FQDN of the Expressway-C, “expc01.example.local”

B : registration domain, “example.com” or “collab-edge.example.com”

C : Cisco UCM cluster FQDN, “cucmcluster.example.local”

D : FQDN of the Expressway-E, “expe01.example.com”

Answer: B

Question 5

When a Cisco Webex Video Mesh Node is configured for an organization, which process does the Webex

Teams client use to discover the optimal bridging resource?

A : lowest STUN round-trip delay to each node and cloud

B : reachable Video Mesh Node and then overflows to the cloud, if needed

C : the SIP delay header during call setup

D : HTTPS speed and latency test to each node and the cloud

Answer: B

Page: 1 / 35

Total 175 Questions | Updated On: Mar 10, 2025

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