Real 300-820 Dumps Updated – Download 300-820 Dumps (V12.02) to Prepare for Your CCNP Collaboration CLCEI Exam

1. Which complication does a NAT introduce in SDP for a SIP call?

2. A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity.

What must be set up to enable this requirement?

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

4. A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.

Which functionality would describe the feature that needs to be enabled and where to achieve this?

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

6. Cisco Collaboration endpoints are exchanging encrypted signaling messages.

What is one major complication in implementing NAT ALG for voice and video devices?

7. What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)

8. Which media encryption mode can be configured on an Expressway zone?

9. What is the purpose of a transform in the Expressway server?

10. An organization with a domain name of example.com.

Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

11. What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?

12. Refer to the exhibit.

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

13. 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?

14. Which role does Call Policy play when preventing toll fraud on Expressways?

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?

16. Which statement about scheduling Expressway backups is true?

17. Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

18. What allows endpoints behind a NAT to discover the paths through which they will pass media?

19. Which two types of information does Cisco Expressway back up? (Choose two.)

20. Which connection does the traversal zone configuration de ne?

21. Which protocol should be used to verify the connectivity for different media paths found during a call using ICE?

22. Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?

23. Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints.

How does the Expressway-C and Expressway-E communicate?

24. Which dial plan component is configured in Expressway-C to route a call to the Cisco UCM?

25. Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?

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

27. Refer to the exhibit.

What is the result of a transformation applied to alias 88514?

28. 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?

29. Which zone is required on a B2B deployment between Expressway-C and Expressway-E?

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

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

32. Which two items are configured when deploying a B2B collaboration solution? (Choose two.)

33. Which step is taken when configuring a Cisco Expressway solution?

34. Refer to the exhibit.

When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

35. Refer to the exhibit.

Which description of the transformation is true?

36. Refer to the exhibit.

In an environment SIP devices are registered to CUCM and H.323 devices to VCS.

What would be required to enable these calls to setup correctly?

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

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

39. 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?

40. 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" eld to prevent toll fraud regardless at origin of the call?

41. Refer to the exhibit.

An Expressway-C and Expressway-E are configured for B2B calling and the Expressway-E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.

Which action resolves this error?

42. Refer to the exhibit.

Which inbound connection should an administrator configure on the outside firewall?

43. How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?

44. 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?

45. Refer to the exhibit.

Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)

46. Refer to the exhibit.

The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1.

Which configuration changes are needed for an Expressway-E with dual network interfaces?

A)

B)

C)

D)

47. A call is sent by Cisco UCM to Expressway with a URI of [email protected].

If (7508`¦)@expc1a.pod8.test.lab.* is the pattern string, what would be the replacement string of the transform in Expressway to re-write the call so that it becomes [email protected]?

48. Refer to the exhibit.

Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway. An H.323 endpoint with an alias of `EndpointA` is registered, and a SIP endpoint with an alias of `[email protected]` is also registered.

How is this issue resolved?

49. Refer to the exhibit.

A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created.

What should be done to resolve this issue?

50. Which two considerations must be made when using Expressway media traversal? (Choose two.)

51. Jabber cannot log in via Mobile and Remote Access.

You inspect Expressway-C logs and see this error message:

XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused"

Which is the cause of this issue?

52. Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?

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

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

55. 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?

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

57. Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?

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

59. 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?

60. Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?