300-820 Exam Questions

Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?

A company has an on-premises Cisco collaboration cluster that contains Cisco UCM, IM and Presence, and Cisco Webex in the cloud. The company wants to integrate the on-premises infr...

Which action is required when using Cisco Jabber for Cloud with Cisco Webex Messenger?

During the deployment of a Cisco Webex Video Mesh, where do on-premises SIP endpoints send signaling?

A company is implementing Cisco Webex but has existing legacy Cisco video endpoint registered on-premises. The administrator of Webex wants the SIP address of these rooms to appear...

Refer to the exhibit. When a user tries to sign in to the Cisco Jabber client through Mobile and Remote Access, they receive this error message: "Cannot communicate with the server...

What are the steps to access the Service Setup Wizard during the first setup of the Expressway server to license the server?

What is the last step for domain management in Cisco Webex Control Hub if an engineer adds users already signed in with the company domain?

Which user management method uses the Webex Directory Connector to add and synchronize users to the Control Hub organization?

An engineer attempts to upload a server certificate to an Expressway-C server but receives an error when they click the upload button that says that the file is invalid. The engine...

A Webex administrator is configuring the Webex Control Hub to enable enterprise users to sign into Webex securely by authenticating to the IdP of the organization. To conform to th...

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

An administrator deployed the directory connector to synchronize the on-premises Active Directory with the Webex cloud and needs to map attributes from the AD to the corresponding...

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 Webex engineer is configuring SSO in Control Hub with Active Directory Federation Services. The engineer wants to authenticate users for all the applications that they are given...

What is the name of the Webex core service that delivers group messaging, one-to-one messaging, presence, and file sharing?

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 Trav...

An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited num...

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

Which two scenarios need a proper DNS configuration on Expressway servers? (Choose two.)

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 inter...

A collaboration engineer is configuring Cisco Webex Edge for video conferencing devices to provide support for Cisco Webex Control Hub configuration management. Which configuration...

Which technique can be used to have media flow directly between two endpoints that have a NAT between them?

Refer to the exhibit. An engineer must configure a B2B traversal zone. Trusted certification authority and server certificates are uploaded to Cisco Expressway-C and Expressway-E s...

In which mode does the Cisco Expressway act as a SIP-H.323 gateway only if one or more of the endpoints are locally registered?

Refer to the exhibit. When users sign in to Cisco Jabber through Mobile and Remote Access, they cannot see their own photo or the photo of their contacts next to each name. Which a...

When does the Webex App Endpoint send media to the Video Mesh cluster during a meeting?

In a larger Cisco Collaboration deployment, a user requires the advanced file transfer function in Cisco Jabber while the client is using Mobile and Remote Access. The deployment h...

Refer to the exhibit. Which SIP trunk security profile configuration on the Cisco UCM server is used for a secured SIP trunk to an Expressway server that is already integrated with...

An engineer is configuring Cisco Expressway-E and needs to implement toll fraud prevention. Which configuration meets this requirement?

What is the default file extension for saving Cisco Expressway-C backups when using the Google Chrome browser?

In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?

Refer to the exhibit. An engineer is configuring Cisco Expressway-C to discover Cisco UCM by using an IP address and a TCP connection. After the configuration is saved, errors occu...

Refer to the exhibit. The web server is set up to store contact photos and the Cisco Jabber- config.xml file is updated for all clients. After these changes, Jabber for Windows use...

After Mobile and Remote Access is deployed with automatic service discovery, end users encounter the error "Cannot communicate with the server" when they attempt to log in to Cisco...

Refer to the exhibit. After hardening the Cisco Expressway, an engineer noticed this error in the logs HTTP error 429 "Too Many Requests," and users report that authentication is n...

Which option mandates that calls fall back to unencrypted media if encryption cannot be established?

Refer to the exhibit. A company has a Cisco collaboration infrastructure that contains Cisco UCM and Cisco Expressway-C and Expressway-E for Mobile and Remote Access. When the engi...

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

Where can the administrator manage a Webex tenant?

A new set of Expressway-C and Expressway-E is deployed and was configured for Mobile and Remote Access with basic settings. How must the engineer edit the inbound allow list rule?

A network engineer is configuring Mobile and Remote Access for the environment and must add the Certificate Authority into the Expressways. How does the engineer perform this actio...

What is the purpose of Webex Cloud-Connected UC?

Refer to the exhibit. A collaboration engineer creates an allow list test file for a Mobile and Remote Access deployment. Which lines are needed to format the test in the file corr...

An engineer must review a new traversal zone that is not establishing a successful connection between Expressway-C and Expressway-E. When the event log page on the Expressway-E is...

H.323 endpoints can be configured in what two ways for registration with the Cisco Expressway?

The _____ is a logical group within the Local Zone that all endpoints register to by default.

Cisco Expressway is often deployed in which of the following configurations?

When is it recommended to back up Cisco Expressway data and configuration?

For TLS encryption to work between a client and a server, which of the following conditions must be met?