Free Cisco 300-820 Exam Questions

Question 1

Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not being accepted. Which action resolves the issue?

A : Addthe command POST at the end on this line “http://myServer4/myPath4,block,,,POST”.

B : Removethe Method “PUT” from “http://myServer2:8000/myPath2,allow “my deployment”, “an allow test”,PUT”.

C : Remove the line “https://myServer4/myPath4,allow,,,GET”

D : Nothing is wrong, but the file type is most likely not XML

Answer: C

Question 2

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 3

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

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

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

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

Answer: B

Question 4

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 5

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