300-820 Practice Questions

A.  

Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.

B.  

Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.

C.  

Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.

D.  

Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.

A.  

ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.

B.  

ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.

C.  

ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.

D.  

ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.

A.  

Expressway Control is the traversal server installed in the DMZ.

B.  

The Expressway Edge must be put in a firewall DMZ segment.

C.  

Cisco Unified Communications Manager zone can be either traversal server or client.

D.  

The Unified Communications traversal zone can be used for Mobile and Remote Access.

E.  

Both Expressway Edge interfaces can be NATed.

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

A.  

Additional headers due to NAT encapsulation can cause the packet size to exceed the MTU.

B.  

When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.

C.  

The IP address specified in the connection data field may be an unrouteable internal address.

D.  

The encryption keys advertised in the SDP are only valid for clients not behind a NAT.

A.  

Transparent Explicit Proxy

B.  

Transparent Inspecting Proxy

C.  

Reverse Proxy

D.  

Distorting Proxy

A.  

Traversal Server

B.  

Advanced Networking

C.  

Device Provisioning

D.  

Rich Media Sessions

E.  

TURN Relays

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)

A.  

IP dialing

B.  

URI dialing

C.  

DN dialing

D.  

E.  

A.  

Add a rule with the URL http://server1.example.com:80/ to the outbound HTTP allow list manually to allow pushing the new software to the clients.

B.  

Add a rule with the URL http://server1.example.com:80/ to the inbound HTTP allow list manually to allow access to the new web server.

C.  

Add a rule with the server IP address 10.1.1.90 in the URL to the inbound HTTP allow list because server names and FQDNs are not supported.

D.  

Run an IM and Presence server discovery process on Expressway-C to add the new web server to the inbound HTTP allow list automatically.