Pass the Cisco CCNP Collaboration 300-820 Questions and answers with CertsForce

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Viewing questions 51-60 out of questions
Questions # 51:

Cisco Collaboration deployment has video endpoints that can do B2B calls over the internet, but they also can make audio calls through a gateway. This ability means that someone from the internet can make fraud calls through the system. Which action must an engineer take to set up the search rules for calls that are being headed to the PSTN gateway?

Options:

A.

Ensure that only requests that are authenticated are allowed to make a PSTN call.


B.

Avoid using any wild card in the source settings in the search rules.


C.

Add registered devices only in the search rule for the PSTN gateway.


D.

Add registered devices only in the zone for the PSTN gateway.


Expert Solution
Questions # 52:

Question # 52

Refer to the exhibit. After hardening the Cisco Expressway, an engineer noticed this error in the logs HTTP error 429 "Too Many Requests,” and users report that authentication is not possible on more than two devices. What must the engineer increase to correct the issue?

Options:

A.

maximum authorizations per period


B.

credentials refresh interval


C.

rate control period


D.

credentials cleanup interval


Expert Solution
Questions # 53:

How is the communication routed in a Hybrid deployment so that people on Cisco Cloud-Based IM are able to communicate with Cisco Jabber users in the on-premises environment?

Options:

A.

The Expressway-C enables a connection directly with the Cisco Webex Cloud to enable the hybrid service and allow the two services to communicate.


B.

The Expressway-E located in the DMZ establishes a connection with the Cisco Webex Cloud to enable the hybrid service and allow the two services to communicate.


C.

The Cisco Unified IM and Presence server establishes a connection using the outgoing path through the Cisco Expressways that terminates in the Cisco Webex Cloud to create the hybrid environment that links the two services together.


D.

The Cisco UC server establishes a connection using the outgoing path through the Cisco Expressways that terminates in the Cisco Webex Cloud to create the hybrid environment that links the two services together.


Expert Solution
Questions # 54:

Refer to the exhibit.

Question # 54

When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

Options:

A.

13358 is replaced by 135, and then is sent to the local zone.


B.

13358 is replaced by 135 and remains in the same zone.


C.

13358 is replaced by 135, and then is sent to the traversal zone.


D.

13358 is sent directly to the traversal zone.


Expert Solution
Questions # 55:

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

Options:

A.

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


B.

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


C.

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


D.

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


Expert Solution
Questions # 56:

Question # 56

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?

Options:

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


Expert Solution
Questions # 57:

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

Options:

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.


Expert Solution
Questions # 58:

Question # 58

Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?

Options:

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.


Expert Solution
Questions # 59:

An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are

automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)

Options:

A.

Export a CSV list of users in the Cisco Webex Control Hub, set the Hybrid Calendar Service to TRUE for users to be enabled, then import the file back to Manage Users menu in the Cisco Webex Control Hub.


B.

Set up an Auto-Assign template that enables Hybrid Calendar.


C.

Select the Hybrid Services settings card in the Cisco Webex Control Hub and import a User Status report that contains only users to be enabled.


D.

On the Users tab in the Cisco Webex Control Hub, check the box next to each user who should be enabled, then click the toggle for the Hybrid Calendar service to turn it on.


E.

From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which

automatically activates them for the service.


Expert Solution
Questions # 60:

When a Cisco Webex Video Mesh Node is configured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

Options:

A.

the lowest STUN round-trip delay to each node and cloud


B.

a reachable Video Mesh Node and then overflows to the cloud, if needed


C.

the SIP delay header during call setup


D.

an HTTPS speed and latency test to each node and the cloud


Expert Solution
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