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

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Viewing questions 31-40 out of questions

Questions # 31:

Which mechanism does TLS use to validate identity?

Options:

server certificate

shared secret

username and a password

IP address of the peer

Answer

Questions # 32:

A collaboration engineer is configuring Cisco Webex Edge for video conferencing devices to provide support for Cisco Webex Control Hub configuration management. Which configuration control mode must be set on Cisco UCM for Control Hub to manage the on-premises device configuration?

Options:

Webex Edge only

endpoint only

Cisco UCM and endpoint

Cisco UCM only

Answer

Questions # 33:

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

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

Options:

Internal endpoints cannot use addresses from the private address space.

The NAT ALG cannot inspect the contents of encrypted signaling messages.

NAT ALG introduces jitter in the voice path.

Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.

Answer

Questions # 34:

Drag and drop the required SAN field items from the left onto the features within the server categories on the right.

Question # 34

Options:

Answer

Answer:

Questions # 35:

An Expressway pairs deployed for Mobile and Remote Access. An administrator installs a new server certificate on the Expressway-E. After installing the new certificate, the UC Traversal zone between Expressway-C and Expressway-E is active. Still, Jabber Mobile and Remote Access clients cannot log in over the Expressway. The certificate Common Name is the FQDN of Expressway-E, “expe01 example.com”, and the certificate contains no additional names. Which Subject Alternate Name must be added to the certificate to allow Jabber Mobile and Remote Access clients to log in successfully?

Options:

FQDN of the Expressway-C, “expc01.example.local”

registration domain, “example.com” or “collab-edge.example.com”

Cisco UCM cluster FQDN, “cucmcluster.example.local”

FQDN of the Expressway-E, “expe01.example.com”

Answer

Questions # 36:

Refer to the exhibit.

Question # 36

When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "user@example.com" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.

DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.

Which change resolves the DNS problem?

Options:

Change cisco-uds to point to the Expressway-E FQDN.

Change the collab-edge record to point to 5061.

Remove the cisco-uds SRV record for the external DNS.

Change the priority of the SRV record for cisco-uds.

Answer

Questions # 37:

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

Options:

Expressway Control is the traversal server installed in the DMZ.

The Expressway Edge must be put in a firewall DMZ segment.

Cisco Unified Communications Manager zone can be either traversal server or client.

The Unified Communications traversal zone can be used for Mobile and Remote Access.

Both Expressway Edge interfaces can be NATed.

Answer

B, D

Questions # 38:

A company is implementing Cisco Webex but has existing legacy Cisco video endpoint registered on-premises. The administrator of Webex wants the SIP address of these rooms to appear in the directory listing on Webex registered endpoints and in the Webex App. How can this be configured?

Options:

Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.

Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.

Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.

Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.

Answer

Questions # 39:

Drag and drop the services from the left onto their descriptions on the right. Some services are used more than once.

Question # 39

Options:

Answer

Answer:

Questions # 40:

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

Which statement is true?

Options:

Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.

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.

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.

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.

Answer

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