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Cisco 300-820 Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI) Exam Practice Test

Demo: 14 questions
Total 96 questions

Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI) Questions and Answers

Question 1

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

Options:

A.

extended CPL

B.

local CPL, policy service, and off

C.

on

D.

remote CPL

Question 2

Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

Options:

A.

_cisco-uds._tcp.

B.

_cisco-mra._tls.

C.

_collab-edge._tls.

D.

_cisco-expwy._tls.

Question 3

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Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing “TLS negotiation failure”. What is causing this issue?

Options:

A.

The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

B.

The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

C.

In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E,

which is not a SAN entry in the Expressway-E certificate

D.

The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

Question 4

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

Options:

A.

1024

B.

2048

C.

4096

D.

8192

Question 5

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?

Options:

A.

Transparent Explicit Proxy

B.

Transparent Inspecting Proxy

C.

Reverse Proxy

D.

Distorting Proxy

Question 6

With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)

Options:

A.

From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.

B.

From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.

C.

From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.

D.

From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.

E.

From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.

Question 7

A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.

Which statement is true?

Options:

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 clients. A DMZ node is added for extra security.

Question 8

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

Options:

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.

Question 9

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?

Options:

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.

Question 10

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

Options:

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

Question 11

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

Options:

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

Question 12

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

Options:

A.

_collab-edge on port 8443

B.

_cisco-uds-edge on port 5061

C.

_collab-edge on port 5061

D.

_cisco-uds on port 8443

Question 13

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?

Options:

A.

Create a new CSR with new information on the SAN field.

B.

Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.

C.

Change the domain name.

D.

Change the FQDN of the Expressway.

Question 14

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

Options:

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.

Demo: 14 questions
Total 96 questions