Cisco 300-820 Exam Dumps

Cisco 300-820 Sample Question Answers

Question # 1

When configuring a Cisco Expressway solution and need to design the dial plan with various rules for URIs and numbers coming through the device. To do so, it is important that some dial plan rules are applied in a certain order. When configuring the transform section, you must know the range of the priorities.Which range is correct?

A. any number in the drop-down menu
B. any number in the dialog box
C. any number between 1-128
D. any number between 1-65534 

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Question # 2

What are two reasons why port 8443 is unreachable from the Internet to the ExpresswayE? (Choose two.) 

A. The MRA license is missing on the Expressway-E.
B. The Unified Communications zone is down.
C. Transform is not configured on Expressway-E.
D. The SRV record for _cisco-uds is misconfigured.
E. The firewall is blocking the port. 

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Question # 3

A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.What else can be done to solve this problem?

A. Create a new CSR with new information on the SAN field.
B. Include Cisco Unified Communications Manager registration domain in the ExpresswayE certificate as a SAN.
C. Change the domain name.
D. Change the FQDN of the Expressway

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Question # 4

Which describes what could done on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?

A. Application layer gateway could be enabled to bridge the media traffic.
B. A static NAT route could be added to the firewall to bridge the two networks.
C. The Expressway-E could be enabled for Dual-NIC capability.
D. The Expressway-E could be enabled for interworking. 

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Question # 5

When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.What is TraversalZone missing that causes this issue?

A. link to the DefaultZone
B. pipe to the DefaultZone
C. SIP trunk to the DefaultZone
D. route pattern to the DefaultZone 

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Question # 6

Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?

A. Add the Jabber user to Cisco Unity Connection.
B. Add the Jabber user to Expressway-E.
C. Add the Jabber user to Expressway-C.
D. Add Jabber Users to the Cisco Webex Administration Tool. 

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Question # 7

An engineer wants to configure a zone on the Expressway-E to receive communications from the Expressway-C in order to allow inbound and outbound calls. How is the peer address configured on the Expressway-C when Expressway-E has only one NIC enabled and is using static NAT mode?

A. Expressway-E FQDN
B. Cisco UCM FQDN
C. Expressway-E DHCP
D. Cisco UCM DHCP 

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Question # 8

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. 

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Question # 9

What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

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. 

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Question # 10

Which two statements about Expressway media traversal are true? (Choose two.)

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. 

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Question # 11

In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?

A. Cisco Expressway-E and endpoints outside the enterprise
B. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
C. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
D. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise 

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Question # 12

Where are voice calls handled in a Cisco Jabber hybrid cloud-based deployment with Cisco Webex Platform Service?

A. Voice calls use Webex Calling platform for call control and use hybrid media nodes for local conferencing.
B. Voice calls use local media nodes to keep traffic internal for internal traffic and use Webex Calling for external calls.
C. Voice call use Cisco Unified Communications Manager for local calls and Webex Calling for external calls.
D. Voice calls use local Cisco Unified Communications Manager for all calls. 

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Question # 13

What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?

A. Create user accounts in Cisco Webex Control Hub only.
B. Create user accounts in Cisco Unified Communications Manager only.
C. Create user accounts in Cisco Unified IM and Presence. 
D. Create user accounts in Cisco Unified CM and Cisco Webex Control Hub. 

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Question # 14

Which connection does the traversal zone configuration define?

A. Expressway-E and Collaboration Endpoints
B. Cisco UC and Cisco Unified Presence Server
C. Cisco Expressway-C and Cisco Expressway-E platforms
D. Cisco UCS E-Series and Cisco UCM 

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Question # 15

Cisco Collaboration endpoints are exchanging encrypted signaling messages.What is one major complication in implementing NAT ALG for voice and video devices?

A. Internal endpoints cannot use addresses from the private address space.
B. The NAT ALG cannot inspect the contents of encrypted signaling messages.
C. NAT ALG introduces jitter in the voice path.
D. Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.

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Question # 16

Which mode should be used when Call Policy is configured on Expressways?

A. extended CPL
B. local CPL, policy service, and off
C. on 
D. remote CPL 

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Question # 17

An organization has a domain name of example.com. Which two SRV records are valid for a SIP and H 323 communication? (Choose two)

A. _collab-edge._tls.example.com
B. _sips_tcp.example.com
C. _h323ls_tcp.example.com
D. _h323ls._udp.example.com
E. _sips._udp.example.com 

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Question # 18

Which step is required when configuring Cisco Webex Hybrid Message Service?

A. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.
B. Register Expressway-C to Cisco Unified Communications Manager.
C. Add Expressway-C and Cisco United CM to the Cisco Webex Cloud.
D. Add Cisco Unity Connection to Expressway-E.

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Question # 19

When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

A. transforms, CPL, user policy, search rules
B. search rules, zones, local zones
C. DNS zone, local zone, search rules
D. search rules, transforms 

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Question # 20

When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verify subject name must be configured on the Expressway-E UC traversal zone?

A. Webex CUSP Cluster Name
B. Expressway-E Cluster Name
C. Cisco Unified Communications Manager Publisher FQDN
D. Expressway-C Cluster Name 

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Question # 21

For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?

A. Expressway-C server certificate
B. Cisco Unified Communications Manager server certificate
C. C.Expressway-E server certificate
D. Expressway-C and Expressway-E server certificate 

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