All About Guaranteed 300-820 Exam Price

NEW QUESTION 1
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?

• A. SDP b-line
• B. SIP record route
• C. SDP c-line
• D. SDP m-line

Answer: C

NEW QUESTION 2
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?

• A. You must have the Intercluster Sync Agent working across your IM and Presence clusters.
• B. You must have the Intercluster Lookup Service working across all of your IM and Presence clusters.
• C. Your IM and Presence Service clusters must have Multiple Device Messaging disabled.
• D. AXL service should be activated only on the publisher of each IM and Presence cluster.

Answer: A

NEW QUESTION 3
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

Answer: C

NEW QUESTION 4
What is the purpose of a transform in the Expressway server?

• A. A transform has the function as a neighbor zone in the Expresswa
• B. It creates a connection with another server.
• C. A transform changes the audio codec when the call goes through the Expressway.
• D. A transform is used to route calls to a destination.
• E. A transform changes an alias that matches certain criteria into another alias.

Answer: D

NEW QUESTION 5
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

Answer: D

NEW QUESTION 6

Refer to the exhibit. Which two numbers match the regular expression? (Choose two.)

• A. d20d16d20d22
• B. 2091652010224
• C. 209165200225
• D. d209d165d200d224
• E. 209165200224

Answer: CE

NEW QUESTION 7
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?

• A. Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.
• B. Installing a Video Mesh Node in the DMZ requires you to open TCP and UDP port 4444 in your internal firewall for full clustering functionality.
• C. Installing a Video Mesh Node in the DMZ requires the external firewall to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004.
• D. Using internal Video Mesh Node also works due to Mobile and Remote Access setup for Webex Teams client
• E. A DMZ node is added for extra security.

Answer: C

NEW QUESTION 8

Refer to the exhibit. Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge. Which action corrects this problem?

• A. Ensure that the peer address does not match the Common Name on certificate.
• B. Ensure that the _cisco-uds SRV record has been configured.
• C. Ensure that the credential has been entered correctly.
• D. Ensure that the SIP domains are added on Expressway Core.

Answer: C

NEW QUESTION 9

Refer to the exhibit. Which description of the transformation is true?

• A. It converts 4123@exp-name.exp.domain:<port> to 4123@exp.domain
• B. It changes all patterns that begin with 4123@exp-name.exp.domain:<port> to 1@exp.domain
• C. It changes 413@exp-name.exp.domain:<port> to 413@exp.domain
• D. It converts 4.3@exp-name.exp.domain:<port> to 1@exp.domain

Answer: A

NEW QUESTION 10
A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.
For which reason would you see activity on the TURN server when a call is established between two external endpoints?

• A. The video call is using encryption, which is not supported by ICE with CUCM 12.5
• B. ICE cannot reduce the packet loss on the link
• C. A STUN cannot punch holes in the firewall
• D. The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5

Answer: A

NEW QUESTION 11
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

• A. _sips._tcp.example.com
• B. _sips._udp.example.com
• C. _h323ls._udp.example com
• D. _h323ls._tcp.example.com
• E. _collab-edge._tls.example.com

Answer: AC

NEW QUESTION 12
An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?

• A. TLS verify must be enabled.
• B. The zone profile must be set to default.
• C. The peer address must be the Expressway-E NAT address.
• D. The peer address must be the Expressway-E LAN 1 IP address.

Answer: C

NEW QUESTION 13
Refer to the exhibit. Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?

• A. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
• B. The call is queued.
• C. The call fails.
• D. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.

Answer: D

NEW QUESTION 14
Which two licenses are required for the B2B feature to work? (Choose two.)

• A. Traversal Server
• B. TURN Relays
• C. Rich Media Sessions
• D. Advanced Networking
• E. Device Provisioning

Answer: CE

NEW QUESTION 15
What happens to the encrypted signaling traffic of a collaboration device if you place it inside a firewall with private IP addresses and try to make a call over IP without any collaboration infrastructure?

• A. The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.
• B. Encrypted IP traffic for collaboration devices always is trusted by the firewall.
• C. The signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.
• D. The signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.

Answer: B

NEW QUESTION 16
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?

• A. 1024
• B. 2048
• C. 4096
• D. 8192

Answer: C

NEW QUESTION 17
Which statement about scheduling Expressway backups is true?

• A. It is not supported on the application.
• B. It is allowed from the application CLI of the Expressway only.
• C. It is allowed from the application CLI and GUI of the Expressway.
• D. It is allowed from the application GUI of the Expressway only.

Answer: C

NEW QUESTION 18
Refer to the exhibit. What is the result of a transformation applied to alias 88514?

• A. 98851@ccnpcollab.com
• B. 88513@ccnpcollab com
• C. 88514@ccnpcollab.com
• D. 88515@ccnpcollab.com

Answer: A

NEW QUESTION 19

Refer to the exhibit. If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?

• A. Both Cloud Node US-EAST and US-WEST
• B. Video Mesh Cluster-2
• C. Cloud Node US-EAST
• D. Cloud Node US-WEST

Answer: B

NEW QUESTION 20
Which step is taken when configuring a Cisco Expressway solution?

• A. Configure the Expressway-E by using a non-traversal server zone.
• B. Enable static NAT on the Expressway-E only.
• C. Disable H.323 mode on the Expressway-E.
• D. Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.

Answer: B

NEW QUESTION 21
Refer to the exhibit. While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?

• A. down Cisco Unified Communications Manager server
• B. XMPP bind failures
• C. incorrect login credentials
• D. service discovery issues

Answer: B

NEW QUESTION 22
Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?

• A. Unified Communications traversal zone
• B. neighbor zone
• C. DNS zone
• D. traversal zone

Answer: A

NEW QUESTION 23

Refer to the exhibit. An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9. Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?

• A. Traversal Zone
• B. Any
• C. Neighbor Zone
• D. All

Answer: D

NEW QUESTION 24
An administrator has been asked to configure Video Mesh signaling traffic to route through a proxy.
Which is an available proxy type in the Video Mesh node configuration to support this deployment model?

• A. Transparent Explicit Proxy
• B. Transparent Inspecting Proxy
• C. Reverse Proxy
• D. Distorting Proxy

Answer: B

NEW QUESTION 25
An organization wants to enable a Cisco Webex connector to synchronize all employees automatically with Cisco Webex instead of using a manual list. Where is the Webex Hybrid Directory Service configured?

• A. Install Cisco Directory Connector on a Microsoft Windows Domain server and configure the software and Webex Control Hub.
• B. Enable the directory service in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
• C. Enable the directory service on Cisco Expressway Edge for Office 365 or Cisco Expressway Core for internal Active Directory and add the service in Webex Control Hub.
• D. Install the Cisco Express Connector and configure the device in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.

Answer: A

NEW QUESTION 26
......