Practice Free 300-820 Exam Online Questions
Where can the administrator manage a Webex tenant?
- A . Cisco Webex administrator portal
- B . Cisco Webex management portal
- C . Cisco Webex control panel
- D . Cisco Webex Control Hub
What is the purpose of a transform in the Expressway server?
- A . A transform has the function as a neighbor zone in the Expressway. It creates a connection with another server.
- B . A transform changes the audio codec when the call goes through the Expressway.
- C . A transform is used to route calls to a destination.
- D . A transform changes an alias that matches certain criteria into another alias.
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
A company identifies a fraudulent toil situation. An engineer reviews the Cisco UCM call detail records and discovers that fraudulent calls originate from a Cisco Expressway-C server and are then routed to a 10-digit PSTN number.
What must be configured to limit incoming Expressway calls to the internal Cisco UCM range of extensions 5XXXX?
- A . calling search space that contains all the partitions on the Unified Communications Manager SIP trunk to Expressway
- B . call policy rule from the DNS zone to allow a destination regex pattern of d.*@abc.com
- C . unique search rule with a regex pattern of [5]d{4}@abc.com that targets the neighbor zone
- D . call policy rule from the DNS zone to allow a destination regex pattern of .*@abc.com
In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?
- A . calling party
- B . called address
- C . Source IP address
- D . CUD
Which two protocols are supported on Expressway Zones? (Choose two.)
- A . SIP
- B . H.248
- C . MGCP
- D . SCCP
- E . H.323
An external Jabber device cannot register. While troubleshooting this issue, the engineer discovers that privately signed certificates are being used on Expressway-C and Expressway-E.
What action will resolve this issue?
- A . The private CA certificate must be placed in the phone trust store.
- B . The Jabber client must register to the Cisco UCM internally before it will register externally.
- C . The device running the Jabber client must use a VPN to register.
- D . The device running the Jabber client must download and trust the private CA certificate.
Which dial plan settings can be used to set up different regulations according to the protocol (SIP or H.323) or the source of the query?
- A . presearch transforms
- B . search rules
- C . call policy
- D . policy services
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
Refer to the exhibit.
Logins and failing via mobile and remote access.
How is this resolved?
- A . Mobile and remote access login has not been enabled for the domain configured in the Expressway-C. The domain must be edited to allow Cisco UCM registrations.
- B . SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server.
- C . No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services.
- D . Although a traversal client zone exists, there is no Unified Communications traversal client zone.
One must be created.