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: Jun 03, 2025

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Question 1

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 2

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 3

Refer to the exhibit. What are “Type” field values for this Expressway servers zone configuration?

A : pressway-C “DNS”, Expressway-E “Traversal server”

B : pressway-C “Traversal server”, Expressway-E “Traversal client”

C : pressway-C “Neighbor”, Expressway-E “Neighbor”

D : pressway-C “Traversal client”, Expressway-E “Traversal server”

Answer: D

Question 4

Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be

used?

A : _collab-edge on port 8443

B : _cisco-uds-edge on port 5061

C : _collab-edge on port 5061

D : _cisco-uds on port 8443

Answer: A

Question 5

Which two protocols are supported on Expressway Zones? (Choose two.)

A : SIP

B : H.248

C : MGCP

D : SCCP

E : H.323

Answer: A,E

Page: 1 / 35

Total 175 Questions | Updated On: Jun 03, 2025

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