Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0

QUESTION NO: 1
What are the steps to access the Service Setup Wizard during the first setup of the Expressway server to license the server?

A. From the GUI of the Expressway server, go to Status> Overview> Run service setup. B. From the GUI of the Expressway server, go to Maintenance> Option keys> First Setup Wizard. C. Factory reset the Expressway server to pass from Expressway-C to Expressway-E. D. Factory reset the Expressway server to pass from Smart Licensing to PAK-based licensing.

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 2
Which complication does a NAT introduce in SDP for a SIP call?

A. Additional headers due to NAT encapsulation can cause the packet size to exceed the MTU. B. The encryption keys advertised in the SDP are only valid for clients not behind a NAT. C. The IP address specified in the connection data field may be an unrouteable internal address. D. When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.

Correct Answer: C

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 3
Drag and Drop Question
Refer to the exhibit. An administrator must configure SSO in the Webex Control Hub. The system has default configuration currently. Drag and drop the configuration tasks into the correct order that allows SSO to be activated in Webex Control Hub. Not all options are used.

Correct Answer:

Explanation:
In Control Hub, SSO setup starts by choosing the identity provider and certificate option, then importing the IdP metadata so Webex can establish trust with the IdP. The administrator must test the SSO configuration before activating it for the organization.

QUESTION NO: 4
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. Add a server certificate to the Expressway-C that is signed by a certificate authority. B. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority. C. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E. D. Configure the Expressway-C Traversal Client zone transport protocol with TCP.

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 5
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?

A. Mobile and remote access login has not been enabled for the domain configured in the Expressway-C. The domain must be edited to allow Cisco UCM registrations. B. SIP is disabled on the Expressway-E. The SIP protocol must be enabled on the server. C. No Cisco UCM servers are configured in the Expressway-C. Servers must be added for CallManager and IM and Presence services. D. Although a traversal client zone exists, there is no Unified Communications traversal client zone. One must be created.

Correct Answer: D

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 6
Which option changes the addresses and ports in voice and video signaling messages?

A. NAT overload B. NAT ALG C. Firewall ALG D. NAT Pinhole

Correct Answer: B

QUESTION NO: 7
Which two considerations must be made when using Expressway media traversal? (Choose two.)

A. The Expressway-E must be put in a firewall DMZ segment B. The Unified Communications traversal zone should be used for MRA C. Cisco UCM zone should be either traversal server or client D. It is possible to NAT both Expressway-E interfaces E. Expressway Control is the traversal server installed in the DMZ

Correct Answer: A,B

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 8
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

A. search rules, zones, local zones B. transforms, CPL, user policy, search rules C. search rules, transforms D. DNS zone, local zone, search rules

Correct Answer: B

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 9
In which mode does the Cisco Expressway act as a SIP-H.323 gateway only if one or more of the endpoints are locally registered?

A. on B. gateway only C. off D. registered only

Correct Answer: D

QUESTION NO: 10
Refer to the exhibit. An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.

Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?

A. Neighbor Zone B. Any C. All D. Traversal Zone

Correct Answer: B

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 11
Which two protocols are supported on Expressway Zones? (Choose two.)

A. SIP B. SCCP C. H.323 D. H.248 E. MGCP

Correct Answer: A,C

QUESTION NO: 12
Refer to the exhibit. A Webex Calling administrator for a company with multiple locations reports that dialing *88* to reach the IT help desk is not working from the SJC office, though it works from other locations. Why is the call is not routing correctly from the SJC office?

A. Translation patterns do not apply to short number dialing, so the call fails. B. The location-level pattern should take precedence, but it may be misconfigured. C. The wildcard character * is not supported in translation patterns, which leads to a failure. D. The organization-level pattern is overriding the location-level pattern, which causes a mismatch.

Correct Answer: B

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 13
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. standard SIP TLS over TCP port 5061 C. signaling over TCP port 444 D. signaling over HTTPS TCP port 443

Correct Answer: D

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 14
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 device running the Jabber client must download and trust the private CA certificate. B. The private CA certificate must be placed in the phone trust store. C. The device running the Jabber client must use a VPN to register. D. The Jabber client must register to the Cisco UCM internally before it will register externally.

Correct Answer: A

Cisco Implementing Cisco Collaboration Hybrid and Cloud Technologies (CLHCT) v2.0 - 300-820 Exam Questions