Free Cisco 300-820 Exam Questions

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

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Total 205 Questions | Updated On: Mar 08, 2026

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Question 1

When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work

anymore for an organization. There are several administrators and configuration changes could have

happened without anyone knowing. Internal communication seems to be working, but no external system

can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out

either.

What is TraversalZone missing that causes this issue?

A : nk to the DefaultZone

B : pe to the DefaultZone

C : P trunk to the DefaultZone

D : route pattern to the DefaultZone

Answer: C

Question 2

An engineer is configuring the Expressway cluster to allow Jabber clients that are outside the enterprise network to register, make calls, and send instant messages using the internal Cisco UCM. Which action must be taken before a secure UC traversal zone is added to the Expressway-C?

A : Add Instant Message and Presence service clusters.

B : Add a Cisco UCM cluster.

C : Configure SIP OAuth mode.

D : Establish certificate trust between the Expressway-C and Expressway-E.

Answer: D

Question 3

Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)

A : en Expressway Core works with VMN clusters, Expressway Core decides which VMN is used forsignaling/media connection.

B : oud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.

C : cascading traffic between VMN must bypass the firewall.

D : en Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.

E : A VMN can terminate a media connection while operating in maintenance mode.

Answer: B,D

Question 4

In a Webex Video Mesh deployment, where do Cloud-registered Webex Teams clients and devices send signaling traffic for call setup?

A : to a local Video Mesh node

B : directly to the Webex cloud

C : to an Expressway-E server

D : to a remote Video Mesh node

Answer: B

Question 5

What is the result if force encryption for media is enabled in the Expressway on a zone that points to a system /endpoint that is not configured for encryption?

A : The call is dropped.

B : The call works with one end only sending encrypted media.

C : The call renegotiates for unencrypted media.

D : The call uses encryption if available, or it falls back to unencrypted media.

Answer: A

Page: 1 / 41

Total 205 Questions | Updated On: Mar 08, 2026

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