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

Cisco (300-820-CLCEI) Exam Questions And Answers page 2

How to configure the peer address on Expressway-C when Expressway-E has one NIC enabled and is using static NAT mode?

Single Choice

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?

Expressway-E DHCP

Cisco UCM FQDN

Cisco UCM DHCP

Expressway-E FQDN

Cisco Expressway Series

How to configure the Expressway-C traversal client zone to connect to Expressway-E with single NIC NAT?

Single Choice

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?

TLS verify must be enabled.

The zone profile must be set to default.

The peer address must be the Expressway-E NAT address.

The peer address must be the Expressway-E LAN 1 IP address.

Cisco Webex Teams Hybrid Services Cisco Expressway Series

How can the issue of an external Jabber device failing to register due to privately signed certificates on Expressway-C and Expressway-E be resolved?

Single Choice

An external Jabber device cannot register. While troubleshooting this issue, the engineer discovers that privately signed certificates are being used on Expressway-C and Expressway-E. What action will resolve this issue?

The private CA certificate must be placed in the phone trust store

The Jabber client must register to the Cisco UCM internally before it will register externally

The device running the Jabber client must download and trust the private CA certificate

The device running the Jabber client must use a VPN to register

Cisco Webex Teams Hybrid Services Cisco Expressway Series

Where is the Webex Hybrid Directory Service configured for automatic employee synchronization?

Single Choice

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?

Install Cisco Directory Connector on a Microsoft Windows Domain server and configure the software and Webex Control Hub.

Enable the directory service in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.

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.

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.

Cloud Collaboration Solutions Cisco Webex Teams Hybrid Services

Which SRV records are valid for SIP and H.323 communication in the example.com domain?

Multiple Choice

An organization with a domain name of example.com.

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

_sips._tcp.example.com

_sips._udp.example.com

_h323ls._udp.example com

_h323ls._tcp.example.com

_collab-edge._tls.example.com

Cisco Unified Communications Manager Express Cisco Unified Border Element

Which two DTMF relay methods does Expressway support for interworking?

Multiple Choice

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

unsolicited notify

RFC 2833

KPML

passthrough

H.245 user input indication

Cisco Webex Teams Hybrid Services Cisco Expressway Series

What is the major complication in implementing NAT ALG for Cisco Collaboration endpoints?

Single Choice

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

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

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.

Cisco Unified Communications Manager Express Cisco Unified Border Element

How do Expressway-C and Expressway-E communicate in Cisco's secure environment for video endpoints?

Single Choice

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?

Expressway-C establishes an outgoing request to Expressway-E, enabling the Expressway-E in the DMZ to notify the internal Expressway-C of an incoming call from an external endpoint.

Internal endpoints are registered to Expressway-E in the DMZ. Expressway-C, which is also in the DMZ, will receive and make calls on behalf of Expressway-E because they are in the same network.

Expressway-E establishes an outgoing request to Expressway-C, enabling the Expressway-C in the DMZ to notify the internal Expressway-E of an incoming call from an external endpoint.

Internal endpoints are registered to Expressway-C in the DMZ. Expressway-E, which is also in the DMZ, will receive and make calls on behalf of Expressway-C because they are in the same network.

Cisco Expressway Series

Which server's certificate requires the Unified registration domain as a Subject Alternate Name for Mobile and Remote Access deployment?

Single Choice

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

Expressway-C server certificate

Cisco Unified Communications Manager server certificate

Expressway-E server certificate

Expressway-C and Expressway-E server certificate

Cisco Webex Teams Hybrid Services Cisco Unified Border Element

How to configure Expressway to block external callers from reaching a specific internal address?

Single Choice

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

block the call with a call policy rule in the Expressway-E

add the specific URI in the firewall section of the Expressway and block it

configure FAC for the destination alias on the Expressway

add a search rule route all calls to the Cisco UCM

Cisco Expressway Series

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Cisco (300-820-CLCEI) Exam Questions And Answers page 2

How to configure the peer address on Expressway-C when Expressway-E has one NIC enabled and is using static NAT mode?

Correct Answer:

References:

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How to configure the Expressway-C traversal client zone to connect to Expressway-E with single NIC NAT?

Comments

How can the issue of an external Jabber device failing to register due to privately signed certificates on Expressway-C and Expressway-E be resolved?

Comments

Where is the Webex Hybrid Directory Service configured for automatic employee synchronization?

Comments

Which SRV records are valid for SIP and H.323 communication in the example.com domain?

Comments

Which two DTMF relay methods does Expressway support for interworking?

Correct Answers:

References:

Comments

What is the major complication in implementing NAT ALG for Cisco Collaboration endpoints?

Comments

How do Expressway-C and Expressway-E communicate in Cisco's secure environment for video endpoints?

Correct Answer:

References:

Comments

Which server's certificate requires the Unified registration domain as a Subject Alternate Name for Mobile and Remote Access deployment?

Comments

How to configure Expressway to block external callers from reaching a specific internal address?

Correct Answer:

References:

Comments

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