How do the Cisco Expressway-C and Expressway-E servers transmit media to each other?
A. RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using UDP.
B. When the Expressway-C receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-E.
C. RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using TLS.
D. When the Expressway-E receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-C.
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.
A video device registered with Cisco UCM failed to make an outbound B2B call. From Expressway-C diagnostic logs, an engineer found that the destination pattern is “[email protected]:5061”, and the call was dropped with a 404 response code from Expressway-C. The search rule intended for this call-in Expressway-C is configured for Alias Pattern Match, Pattern type “Suffix,” and Pattern “example.com”. How must the configuration be changed to allow the call?
A. Update the route pattern in Cisco UCM to send calls to “example.com” to the correct port.
B. Create a transform on Expressway-C to strip port numbers.
C. Create a call policy rule on Expressway-E to allow calls to port 5061.
D. Update the call policy list in Expressway-C to allow calls to “example.com”.
Which type of interface is required when the Cisco Expressway-E is located in a DMZ between two separate firewalls on separate network segments?
A. dual network interface
B. application programming interface
C. command line interface
D. single network interface
What is a description of an Interactive Connectivity Establishment?
A. It is used by B2BUA to keep the firewall ports opened for inbound/outbound calls.
B. It allows Mobile and Remote Access endpoints to connect video calls signaling peer-to-peer.
C. It allows calling external endpoints with reduced overhead under VPN connections.
D. It is used to find the best media path between network elements in traversal calls.
An administrator must configure the DNS SRV records for Mobile and Remote Access for a company with the domain example.com, the Expressway-E FQDN is ExpE.example.com, and the Expressway-C FQDN is Exp-C.example.com. What must the administrator configure to allow external clients to discover the Expressway-E server?
A. SRV record _collab-edge._tls.example.com that resolves to ExpE.example.com on port 8443
B. SRV record _cisco-uds._tcp.example.com that resolves to ExpE.example.com on port 5061
C. SRV record _cisco-uds._tcp.example.com that resolves to ExpC.example.com on port 8443
D. SRV record _collab-edge._tls.example.com that resolves ta ExpE.example.com on port 5061
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. 1 hour
B. 2 hours
C. 4 hours
D. 6 hours
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 infrastructure with Webex to enable interoperability with the Webex App. An engineer already configured the cluster in Cisco UCM, IM and Presence, and the organization in the Webex Control Hub. Which action must the engineer take to complete the configuration?
A. Deploy Directory Connector.
B. Open the TCP 443 port from IM and Presence to Webex Cloud.
C. Deploy a Webex Device Connector.
D. Deploy a Cisco Expressway Message Connector host.
Which action is required when using Cisco Jabber for Cloud with Cisco Webex Messenger?
A. Configure, extend, and connect.
B. Configure policies.
C. Configure service discovery for remote access.
D. Configure desk phone control.
During the deployment of a Cisco Webex Video Mesh, where do on-premises SIP endpoints send signaling?
A. On-premises endpoints cannot participate in Cisco Webex Video Mesh
B. to the cloud
C. to the switching services
D. to the call control environment (Unified CM or Expressway)
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