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Question # 4

An administrator installs a new webserver (server1.example.com – 10.1.1.90) for storing Cisco Jabber update files to the network, but all Mobile and Remote Access registered clients still run the old Jabber software version, and the update fails. Which configuration task on an Expressway server solves the Jabber software update issue?

A.

Add a rule with the URL http://server1.example.com:80/ to the outbound HTTP allow list manually to allow pushing the new software to the clients.

B.

Add a rule with the URL http://server1.example.com:80/ to the inbound HTTP allow list manually to allow access to the new web server.

C.

Add a rule with the server IP address 10.1.1.90 in the URL to the inbound HTTP allow list because server names and FQDNs are not supported.

D.

Run an IM and Presence server discovery process on Expressway-C to add the new web server to the inbound HTTP allow list automatically.

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Question # 5

Refer to the exhibit.

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

A.

XMPP: TCP 7400

B.

SIP: TCP 7001

C.

SIP TCP 5061

D.

Media: UDP 36012 to 59999

E.

HTTPS: TCP 8443

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Question # 6

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

A.

Advanced Encryption Standard

B.

IPsec

C.

Triple Data Encryption Standard

D.

force unencrypted

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Question # 7

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?

A.

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

B.

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

C.

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

D.

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

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Question # 8

An administrator must configure the DNS SRV records for Mobile and Remote Access for a company with the domain example.com, the Expressway-E FQDN is ExpE.example.com, and the Expressway-C FQDN is Exp-C.example.com. What must the administrator configure to allow external clients to discover the Expressway-E server?

A.

SRV record _collab-edge._tls.example.com that resolves to ExpE.example.com on port 8443

B.

SRV record _cisco-uds._tcp.example.com that resolves to ExpE.example.com on port 5061

C.

SRV record _cisco-uds._tcp.example.com that resolves to ExpC.example.com on port 8443

D.

SRV record _collab-edge._tls.example.com that resolves ta ExpE.example.com on port 5061

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Question # 9

Which dial plan settings can be used to set up different regulations according to the protocol (SIP or H.323) or the source of the query?

A.

presearch transforms

B.

search rules

C.

call policy

D.

policy services

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Question # 10

What is the last step for domain management in Cisco Webex Control Hub if an engineer adds users already signed in with the company domain?

A.

Publish a domain.

B.

Add a domain.

C.

Verify a domain.

D.

Claim a domain.

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Question # 11

Which option mandates that calls fall back to unencrypted media if encryption cannot be established?

A.

auto

B.

force unencrypted

C.

best effort

D.

force encrypted

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Question # 12

Refer to the exhibit. A collaboration engineer creates an allow list test file for a Mobile and Remote Access deployment. Which lines are needed to format the test in the file correctly?

A.

https://myServer:8443/myPath.block, “my deployment”, “a block test”, GET

B.

“my deployment”, block, GET https://myServer:8443/myPath, “a block test”

C.

a block test:https:8443:GET “myServer/myPath”:my deployment:block

D.

a block test,https:8443,GET “myServer/myPath”,my deployment:block

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Question # 13

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

A.

Cisco Webex Administration Tool

B.

Cisco UCM

C.

Cisco Webex Directory Connector

D.

Cisco Unified IM and Presence Server

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Question # 14

Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not being accepted. Which action resolves the issue?

A.

Add the command POST at the end on this line “http://myServer4/myPath4,block,,,POST”.

B.

Remove the Method “PUT” from “http://myServer2:8000/myPath2,allow “my deployment”, “an allow test”, PUT”.

D.

Nothing is wrong, but the file type is most likely not XML.

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Question # 15

A company identifies a fraudulent toil situation. An engineer reviews the Cisco UCM call detail records and discovers that fraudulent calls originate from a Cisco Expressway-C server and are then routed to a 10-digit PSTN number. What must be configured to limit incoming Expressway calls to the internal Cisco UCM range of extensions 5XXXX?

A.

calling search space that contains all the partitions on the Unified Communications Manager SIP trunk to Expressway

B.

call policy rule from the DNS zone to allow a destination regex pattern of \d.*@abc.com

C.

unique search rule with a regex pattern of [5]\d{4}@abc.com that targets the neighbor zone

D.

call policy rule from the DNS zone to allow a destination regex pattern of .*@abc.com

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Question # 16

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

A.

Presence

B.

Phone services

C.

Voicemail

D.

Call forward services

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Question # 17

An engineer must configure Mobile and Remote Access. One of the requirements is to expect Cisco Jabber users to enter username@cisco.com as the login userid. Which DNS record must the engineer modify to start implementing this requirement?

A.

_cuplogin._tcp.cisco.com

B _collab-edge._tls.cisco.com

B.

_cisco-uds._tls.cisco.com

C.

_cisco-uds._tcp.cisco.com

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Question # 18

An engineer is deploying Mobile and Remote Access to allow external Cisco Jabber users to sign into a Cisco UCM cluster via Cisco Expressways. The users will sign-in in the format username@cisco.com. Contact photos for Jabber are hosted on a webserver with the FQDN of phonebook cisco.com. Which configuration must be completed to allow external Jabber users to see contact photos?

A.

An HTTP allow list entry must be made on the Expressway-E for phonebook cisco.com.

B.

A SIP allow list entry must be made on the Expressway-E for .*@cisco.com.

C.

An HTTP allow list entry must be made on the Expressway-C for phonebook cisco.com.

D.

A SIP allow list entry must be made on the Expressway-C for .*@cisco.com.

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Question # 19

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

A.

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

B.

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

C.

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

D.

The Expressway-E could be enabled for interworking.

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Question # 20

An engineer attempts to upload a server certificate to an Expressway-C server but receives an error when they click the upload button that says that the file is invalid. The engineer is advised that this happens because the certificate was signed incorrectly and is missing an attribute. What must the engineer do to upload the certificate?

A.

Create a certificate request via Certificate Services Web Page and ensure that the certificate validity period is five years because the Expressway server validates this during certificate import.

B.

Create a certificate request via the Certificate Services Web Page and ensure that the Subject Common Name field contains the server FQDN and all Cisco Unified CM phone security profile names.

C.

Create a new certificate template with "Server authentication” and "Client authentication" enabled and use this template when signing the Expressway server certificate.

D.

Create a new certificate template with the certificate attribute "Allow private key to be exported" enabled and use this template when signing the Expressway server certificate.

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Question # 21

Refer to the exhibit. The administrator attempted to log in, but Jabber clients cannot log in via mobile and remote access. How is this issue resolved?

A.

Skype for Business mode must be disabled on the DNS server because it conflicts with Jabber login

requirements.

B.

The domain pod1.local must be deprovisioned from the Webex cloud for Jabber logins.

C.

A DNS SRV record must be created for _collab-edge._tls.pod1.local that points to the Expressway-E.

D.

The username jabberuser@pod1.local is invalid. The user should instead sign-in simply as jabberuser.

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Question # 22

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

A.

Traversal Server

B.

TURN Relays

C.

Rich Media Sessions

D.

Advanced Networking

E.

Device Provisioning

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Question # 23

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?

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

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Question # 24

An engineer is configuring Cisco Expressway-E and needs to implement toll fraud prevention. Which configuration meets this requirement?

A.

Enable SIP ALG inspection on the network address translation firewall.

B.

Enable and configure local call policy.

C.

Enable and configure the Expressway-E firewall.

D.

Configure the external firewall to block specific IPs.

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Question # 25

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

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

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.

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Question # 26

A Webex administrator is configuring the Webex Control Hub to enable enterprise users to sign into Webex securely by authenticating to the IdP of the organization. To conform to the SAML specification, to what can the NameID format be set?

A.

urn:oasis:names:tc:SAML:2.0:nameid-format:unspecified

B.

urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress

C.

urn:oasis:names:tc:SAML:2.0:nameid-format:transient

D.

urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress

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Question # 27

An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited number of users. How can the administrator check the result before executing the synchronization?

A.

Initiate an incremental synchronization from the Director Connector app on the on-premises Windows server because it will ask to save the changes.

B.

Initiate a dry run of an incremental synchronization from the Director Connector app on the on-premises Windows server.

C.

Initiate a dry run of an incremental synchronization from the Director Connector in Control Hub.

D.

Initiate an incremental synchronization from the Director Connector in Control Hub because it will ask to save changes.

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Question # 28

Refer to the exhibit.

The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 29

An engineer is configuring the Expressway cluster to allow Jabber clients that are outside the enterprise network to register, make calls, and send instant messages using the internal Cisco UCM. Which action must be taken before a secure UC traversal zone is added to the Expressway-C?

A.

Add Instant Message and Presence service clusters.

B.

Add a Cisco UCM cluster.

C.

Configure SIP OAuth mode.

D.

Establish certificate trust between the Expressway-C and Expressway-E.

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Question # 30

Which protocol and port are used for signaling between on-premises Cisco Webex Video Mesh Nodes and Cloud Media Services?

A.

standard SIP over TCP port 5060

B.

signaling over HTTPS TCP port 443

C.

standard SIPTLS over TCP port 5061

D.

signaling over TCP port 444

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Question # 31

What is configured on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?

A.

Application layer gateway is enabled to bridge the media traffic.

B.

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

C.

The Expressway-E is enabled for Dual-NIC capability.

D.

The Expressway-E is enabled for interworking

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Question # 32

In a larger Cisco Collaboration deployment, a user requires the advanced file transfer function in Cisco Jabber while the client is using Mobile and Remote Access. The deployment has multiple Expressway clusters and internal Cisco UCM clusters. Which configuration must be applied on Cisco Expressway-C for this function to be available?

A.

The HTTP Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers.

B.

The HTTPS Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers.

C.

The HTTP Allow List must use Automatic update rules to include all Cisco UCM servers.

D.

The HTTP Allow List must use Automatic update rules to include all Cisco IM and Presence servers.

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Question # 33

A video device registered with Cisco UCM failed to make an outbound B2B call. From Expressway-C diagnostic logs, an engineer found that the destination pattern is “john@example.com:5061”, and the call was dropped with a 404 response code from Expressway-C. The search rule intended for this call-in Expressway-C is configured for Alias Pattern Match, Pattern type “Suffix,” and Pattern “example.com”. How must the configuration be changed to allow the call?

A.

Update the route pattern in Cisco UCM to send calls to "example.com" to the correct port.

B.

Create a transform on Expressway-C to strip port numbers.

C.

Create a call policy rule on Expressway-E to allow calls to port 5061.

D.

Update the call policy list in Expressway-C to allow calls to "example.com".

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Question # 34

How are Cisco Webex Video Mesh deployments supported?

A.

Video Mesh Dual NIC are supported in demilitarized deployments.

B.

Mixed Single NIC and Dual NIC are supported in the same data center deployments.

C.

Clustering Video Mesh Nodes over the WAN are supported if Round Trip Time is low.

D.

IPv6 and IPv4 deployments are supported for Video Mesh clusters.

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Question # 35

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?

A.

Expressway-E FQDN

B.

Cisco UCM FQDN

C.

Expressway-E DHCP

D.

Cisco UCM DHCP

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Question # 36

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

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.

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Question # 37

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

A.

Traversal Server

B.

Advanced Networking

C.

Device Provisioning

D.

Rich Media Sessions

E.

TURN Relays

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Question # 38

What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?

A.

Create user accounts in Cisco Webex Control Hub only.

B.

Create user accounts in Cisco Unified Communications Manager only.

C.

Create user accounts in Cisco Unified IM and Presence.

D.

Create user accounts in Cisco Unified CM and Cisco Webex Control Hub.

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Question # 39

An employee has recently left an organization and a manager suspects that this employee may have made changes to the system that no one is aware of. Mobile and Remote Access registration is not working. Internal communications appear to be working, but no external system is able to register or call anywhere. While investigating this problem, it is discovered that no internal systems are able to call externally either. What is the TraversalZone missing that is causing this issue?

A.

SIP trunk to the DefaultZone

B.

route pattern to the DefaultZone

C.

link to the DefaultZone

D.

pipe to the DefaultZone

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Question # 40

An administrator is enabling Mobile and Remote Access login for the Cisco UCM registration domain cisco.com. Phones are registered with a Cisco UCM phone security profile name of securephone.cisco.com. Which two subject alternative names must be configured? (Choose two.)

A.

Securephone.cisco.com on the CallManager certificate

B.

cisco.com on the Expressway-C certificate

C.

Securephone.cisco.com on the Expressway-E certificate

D.

cisco.com on the Expressway-E certificate

E.

Securephone.cisco.com on the Expressway-C certificate

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Question # 41

Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?

A.

connection

B.

name

C.

version

D.

bandwidth

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Question # 42

How do the Cisco Expressway-C and Expressway-E servers transmit media to each other?

A.

RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using UDP.

B.

When the Expressway-C receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-E.

C.

RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using TLS.

D.

When the Expressway-E receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-C.

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Question # 43

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

A.

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

B.

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

C.

A transform is used to route calls to a destination.

D.

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

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Question # 44

Cisco Expressways are being deployed for Mobile and Remote Access. The Expressway-E internal interface (LAN1) IP is 192.168.100.10/24, and the external interface (LAN2) IP is 172.16.100.10/24.

The Expressway-C IP is 192.168.20.10/24. The default gateway for each subnet is the first useable address. How must the Expressway-E be configured to allow proper routing to the internal and external networks?

A.

IPv4 gateway: 172.16.100.1, and a static route for the 192.168.100.0/24 subnet using LAN1

B.

IPv4 gateway: 192.168.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1

C.

IPv4 gateway: 192.168.100.1, and a static route for the 172.16.100.0/24 subnet using LAN2

D.

IPv4 gateway: 172.16.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1

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Question # 45

When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

A.

transforms, CPL, user policy, search rules

B.

search rules, zones, local zones

C.

DNS zone, local zone, search rules

D.

search rules, transforms

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Question # 46

An engineer is supporting an existing Cisco Collaboration deployment that has internal and external home users using the solution without VPN. Business usage also includes B2B calling for voice and video. Suddenly the engineer receives a report that one of the home office users cannot use the Cisco Jabber client, and shortly after, a few more reports come in for the same error. What must the engineer check first to resolve this issue?

A.

client logs of the users

B.

real-time monitoring toll logs for problems

C.

alarms on the Cisco Expressways

D.

alarms on the Cisco UCM Cluster

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Question # 47

Refer to the exhibit. What are “Type” field values for this Expressway servers zone configuration?

A.

Expressway-C "DNS", Expressway-E Traversal server'

B.

Expressway-C Traversal server', Expressway-E Traversal client*

C.

Expressway-C "Neighbor'. Expressway-E 'Neighbor'

D.

Expressway-C Traversal client", Expressway-E Traversal server'

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Question # 48

Refer to the exhibit.

An Expressway-C and Expressway-E are configured for B2B calling and the Expressway- E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.

Which action resolves this error?

A.

Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.

B.

Configure the Expressway-C Traversal Client zone transport protocol with TCP.

C.

Add a server certificate to the Expressway-C that is signed by a certificate authority.

D.

Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.

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Question # 49

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?

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

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Question # 50

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?

A.

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.

B.

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.

C.

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.

D.

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.

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Question # 51

Which mechanism does TLS use to validate identity?

A.

server certificate

B.

shared secret

C.

username and a password

D.

IP address of the peer

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Question # 52

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

A.

extended CPL

B.

local CPL, policy service, and off

C.

on

D.

remote CPL

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Question # 53

An organization with a domain name of example.com.

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

A.

_sips._tcp.example.com

B.

_sips._udp.example.com

C.

_h323ls._udp.example com

D.

_h323ls._tcp.example.com

E.

_collab-edge._tls.example.com

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Question # 54

Refer to the exhibit. Call policy rules on an Expressway-E prevent external callers from the internet from calling a VIP whose URI is vip@cisco.com. Which additional configuration setting is required for this call policy to function as intended?

A.

The default zone on the Expressway-E must not be configured to treat as authenticated.

B.

A search rule must be configured with an extract match forvip^cisco.com to pass the call to the Expressway-C.

C.

The Cisco TelePresence endpoint registered with the URI vip@cisco.com must be set in *do not disturb" mode.

D.

SIP TLS must be disabled on the Expressway-E.

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Question # 55

Which statement about scheduling Expressway backups is true?

A.

It is not supported on the application.

B.

It is allowed from the application CLI of the Expressway only.

C.

It is allowed from the application CLI and GUI of the Expressway.

D.

It is allowed from the application GUI of the Expressway only.

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Question # 56

An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UCM SIP lines for extra security and improved user experience. During the setup, Mobile and Remote Access does not work, it is enabled on the Cisco UCM and Cisco Expressways. SIP trunks on ports 5090 and 5091 are configured to avoid conflicts with other SIP trunks between internal Cisco UCM clusters. The traversal zone also uses port 6500. The traversal zone between Expressways shows no errors, and the requests hit Expressway-E from the Internet. What is the reason that the solution does not work?

A.

Mobile and Remote Access does not support OAuth with refresh with this configuration.

B.

The default port for Mobile and Remote Access is 6001. Therefore, the traversal port must be port 6001 for Mobile and Remote Access to work.

C.

The default port for Mobile and Remote Access is 6500, which creates a conflict with the existing traversal zone port.

D.

The default port for Mobile and Remote Access is 5091, which creates a conflict with the existing SIP trunks.

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Question # 57

Refer to the exhibit. When users sign in to Cisco Jabber through Mobile and Remote Access, they cannot see their own photo or the photo of their contacts next to each name. Which action must be taken in Cisco Expressway-C to resolve the issue?

A.

Add an HTTP allow list for the Instant Message and Presence server.

B.

Add an allow call policy rule from the Cisco UCM traversal zone.

C.

Upload the missing Instant Messaging and Presence server certificate to fix the connection to its server.

D.

Add an HTTP allow list for the web server that contains the photos.

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Question # 58

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

A.

unsolicited notify

B.

RFC 2833

C.

KPML

D.

passthrough

E.

H.245 user input indication

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Question # 59

Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?

A.

1 hour

B.

2 hours

C.

4 hours

D.

6 hours

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Question # 60

Which two scenarios need a proper DNS configuration on Expressway servers? (Choose two.)

A.

Expressway servers verify the common name attribute in server certificates.

B.

Expressway servers route calls based on SIP URI.

C.

Admins avoid IP address configuration for neighbor zone peers.

D.

Expressway servers use NTP peer authentication for secure time updates.

E.

Admins download software updates from the Cisco website via WebUI.

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Question # 61

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

A.

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

B.

It changes the calling and called number on a call.

C.

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

D.

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

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Question # 62

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

A.

_cisco-uds._tcp.

B.

_cisco-mra._tls.

C.

_collab-edge._tls.

D.

_cisco-expwy._tls.

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