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

Unified Communications traversal zone

neighbor zone

DNS zone

traversal zone

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

Additional headers due to NAT encapsulation can cause the packet size to exceed the MT

When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.

The IP address specified in the connection data field may be an unrouteable internal address.

The encryption keys advertised in the SDP are only valid for clients not behind a NA

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

extended CPL

local CPL, policy service, and off

remote CPL

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

Add Expressway-C and Cisco United CM to the Cisco Webex Cloud.

Add Cisco Unity Connection to Expressway-

5. 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?

The search rule must be changed to continue on match

The existing zone using ID 7 must be deleted

More bandwidth must be added to the appropriate pipes

The underlying DNS issue must be resolved

6. Which service is available in a cloud-based deployment using Cisco Webex Messenger?

Presence

Phone services

Voicemail

Call forward services

7. 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?

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

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

Change the domain name.

Change the FQDN of the Expressway.

8. Refer to the exhibit.

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

XMPP: TCP 7400

SIP: TCP 7001

SIP TCP 5061

Media: UDP 36012 to 59999

HTTPS: TCP 8443

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

IPS

SAML authentication

Cisco Unified CM publisher address

SSO

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

Which statement is true?

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.

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

Application layer gateway could be enabled to bridge the media traffic.

A static NAT route could be added to the firewall to bridge the two networks.

The Expressway-E could be enabled for Dual-NIC capability.

The Expressway-E could be enabled for interworking.

12. 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.

13. 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?

_collab-edge._tls.cisco.com

_cisco-uds._tcp.cisco.com

_sip._tcp.cisco.com

_cuplogin._tcp.cisco.com

14. Where are voice calls handled in a Cisco Jabber hybrid cloud-based deployment with Cisco Webex Platform Service?

Voice calls use Webex Calling platform for call control and use hybrid media nodes for local conferencing.

Voice calls use local media nodes to keep traffic internal for internal traffic and use Webex Calling for external calls.

Voice call use Cisco Unified Communications Manager for local calls and Webex Calling for external calls.

Voice calls use local Cisco Unified Communications Manager for all calls.

15. Refer to the exhibit.

If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?

Both Cloud Node US-EAST and US-WEST

Video Mesh Cluster-2

Cloud Node US-EAST

Cloud Node US-WEST

16. Refer to the exhibit.

Mobile and remote access is being added to an existing B2B deployment and is failing. When the administrator looks at the alarms on the Expressway-C, the snippets are shown.

Which configuration action should the administrator take to fix this issue?

The listening port on the Expressway-C for SIP TCP must be changed to a value other than 5060

The listening port on the Expressway-C for SIP TLS must be changed to a value other than 5061

The listening port on the Cisco UCM for the Expressway-C SIP trunk must be changed to something other than 5060 or 5061

The listening port on the Cisco UCM for the Expressway-C SIP trunk is set to something other than 5060 or 5061. It must be set to 5060 for insecure and 5061 for secure SIP

17. A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server.

What should be configured on the Expressway-C so that MRA registered clients reach this server?

The directory photo server FQDN must be added to the Expressway-C certificate

A search rule must be created to route the requests to Cisco UCM

A neighbor zone must be created to the directory photo server

The directory photo server must be added to the HTTP allow list

18. Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)

When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.

Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.

The cascading traffic between VMN must bypass the firewall.

When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.

A VMN can terminate a media connection while operating in maintenance mode.

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

A transform has the function as a neighbor zone in the Expressway. It creates a connection with another server.

A transform changes the audio codec when the call goes through the Expressway.

A transform is used to route calls to a destination.

A transform changes an alias that matches certain criteria into another alias.

20. Which statement about the Cisco Webex hybrid service is true?

Expressway Connector is required for an on-premises Exchange server.

Hybrid Message service works only with Jabber cloud deployment.

Directory Connector is required for Azure A

Directory Connector must be deployed for OBTP to work with on-premises video devices.

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21. 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?

Ensure that the peer address does not match the Common Name on certificate.

Ensure that the _cisco-uds SRV record has been configured.

Ensure that the credential has been entered correctly.

Ensure that the SIP domains are added on Expressway Core.

22. 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

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

It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.

It changes the calling and called number on a call.

It changes the audio protocol used by a call through Expressways.

It changes the audio codec used in a call through Expressways.

24. Refer to the exhibit.

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

d20d16d20d22

2091652010224

209165200225

d209d165d200d224

209165200224