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: Jan 29, 2026

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Question 1

When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verify subject name must be configured on the Expressway-E UC traversal zone?

A : Webex CUSP Cluster Name

B : Expressway-E Cluster Name

C : Cisco Unified Communications Manager Publisher FQDN

D : Expressway-C Cluster Name

Answer: D

Question 2

An Expressway Server has both network protocols (IPv4 and IPv6) enabled. Which two behaviors are correct? (Choose two.)

A : If the calling endpoint is on an IPv4-Only network and the called endpoint is on an IPV6-Only network, a NAT64 device must convert the IPv4 addresses to IPv6 addresses.

B : Endpoints register with either IPv4 or IPv6 addresses, but dual-stack endpoints choose IPv6 protocol by default.

C : If the calling endpoint is on an IPv4-Only network and the called endpoint is on an IPv6-Only network, the Expressway Server act as a gateway and convert the two protocol versions.

D : Endpoints register only with IPv6 addresses on an Expressway Server with IPv6 protocol enabled regardless of the state of IPv4 protocol.

E : Endpoints register with either IPv4 or IPv6 addresses, and endpoints decide which protocol to use by the format of the configured Expressway Server IP address.

Answer: C,E

Question 3

An administrator is configuring a new Cisco Webex Hybrid Message Service deployment, and the Expressway-C Message Connector is successfully registered in the Control Hub. After the server information of the IM and Presence server is added to the Expressway-C, an error “Connectivity to IM and Presence AXL Service could not be established” is displayed in the Control Hub. The Cisco AXL Web Service is enabled on the IM and Presence Service publisher, and the main administrator account enabled for AXL API permission is being used. Which configuration change must be made to resolve this error?

A : Enable the Cisco AXL Web Service on the Control Hub

B : Enable the Cisco AXL Web Service on the Expresswav-C Message Connector

C : Enable an End User account for AXLAPI permissions on the IM and Presence Service publisher

D : Enable a second administrator account for AXL API permissions on the IM and Presence Service publisher

Answer: D

Question 4

Refer to the exhibit.When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

A : 13358 is replaced by 135, and then is sent to the local zone.

B : 13358 is replaced by 135 and remains in the same zone.

C : 13358 is replaced by 135, and then is sent to the traversal zone.

D : 13358 is sent directly to the traversal zone.

Answer: C

Question 5

What is the default DSCP value for video traffic that is routed through an Expressway server?

A : 36

B : 24

C : 0

D : 34

Answer: C

Page: 1 / 41

Total 205 Questions | Updated On: Jan 29, 2026

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