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

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

Last Update May 15, 2024
Total Questions : 96

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Questions 1

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

Options:

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.

Discussion 0
Questions 2

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

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

Options:

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.

Discussion 0
Questions 3

An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?

Options:

A.  

_collab-edge._tls.cisco.com

B.  

_cisco-uds._tcp.cisco.com

C.  

_sip._tcp.cisco.com

D.  

_cuplogin._tcp.cisco.com

Discussion 0
Questions 4

Which step is taken when configuring a Cisco Expressway solution?

Options:

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.

Discussion 0
Questions 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?

Options:

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

Discussion 0
Questions 6

What should an engineer use to create users for a Cisco Jabber Cloud Deployment?

Options:

A.  

Cisco Webex Administration Tool

B.  

Cisco UCM

C.  

Cisco Webex Directory Connector

D.  

Cisco Unified IM and Presence Server

Discussion 0
Questions 7

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

Options:

A.  

Traversal Server

B.  

Advanced Networking

C.  

Device Provisioning

D.  

Rich Media Sessions

E.  

TURN Relays

Discussion 0
Questions 8

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?

Options:

A.  

Expressway-E FQDN

B.  

Cisco UCM FQDN

C.  

Expressway-E DHCP

D.  

Cisco UCM DHCP

Discussion 0
Questions 9

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

Options:

A.  

1024

B.  

2048

C.  

4096

D.  

8192

Discussion 0
Questions 10

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.

Discussion 0
Questions 11

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

Options:

A.  

Advanced Encryption Standard

B.  

IPsec

C.  

Triple Data Encryption Standard

D.  

force unencrypted

Discussion 0
Questions 12

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.

Discussion 0
Questions 13

Refer to the exhibit.

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

Options:

A.  

down Cisco Unified Communications Manager server

B.  

XMPP bind failures

C.  

incorrect login credentials

D.  

service discovery issues

Discussion 0
Questions 14

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?

Options:

A.  

Webex CUSP Cluster Name

B.  

Expressway-E Cluster Name

C.  

Cisco Unified Communications Manager Publisher FQDN

D.  

Expressway-C Cluster Name

Discussion 0