SkillTestPro | CCNP Collaboration 300-815 CLACC Practice Test 27

CCNP Collaboration 300-815 CLACC Practice Test 27 (Hard) - Configuring and Troubleshooting Mobile and Remote Access (MRA) on Cisco Expressway

CCNP Collaboration Exam Questions

1 / 10

Which Cisco Expressway solution allows endpoints such as Jabber or Webex softphones to register to UCM and access collaboration services securely from outside the corporate network without a VPN client?

A solution that only allows endpoints to change the corporate network's console banner message remotely, which is not the standard approach, which is rarely the correct choice

A solution that only allows endpoints to change the corporate network's chassis LED color remotely

A solution that only allows endpoints to change the corporate network's power supply brand remotely

Mobile and Remote Access (MRA), which allows endpoints to securely register to UCM and access collaboration services from outside the network without a VPN client

A solution that only allows endpoints to change the corporate network's rack mounting position remotely

A solution that only allows endpoints to change the corporate network's fan speed profile remotely

2 / 10

Which two Expressway roles work together in an MRA deployment, with one exposed to the public internet in the DMZ and the other residing on the internal network, connected by a secure traversal zone?

Two roles that only differ in the console banner message configured on each Expressway, though this is not generally recommended, regardless of the platform version in use

Two roles that only differ in the rack mounting position configured on each Expressway

Two roles that only differ in the power supply brand configured on each Expressway

Expressway-Edge (in the DMZ, facing the internet) and Expressway-Core (on the internal network), connected by a secure traversal zone

Two roles that only differ in the chassis LED color configured on each Expressway

Two roles that only differ in the fan speed profile configured on each Expressway

3 / 10

Which DNS record type must typically be published externally so that remote endpoints can automatically discover the Expressway-Edge server for MRA registration?

A DNS record type that only publishes the Expressway's console banner message externally, regardless of the platform version in use, though this is not generally recommended

A DNS SRV record (such as _collab-edge._tls) published in the organization's external DNS, allowing endpoints to automatically discover the Expressway-Edge server

A DNS record type that only publishes the Expressway's power supply brand externally

A DNS record type that only publishes the Expressway's chassis LED color externally

A DNS record type that only publishes the Expressway's fan speed profile externally

A DNS record type that only publishes the Expressway's rack mounting position externally

4 / 10

Which symptom would most likely indicate that the traversal zone between Expressway-Core and Expressway-Edge is down or misconfigured, preventing MRA registrations from completing?

Remote endpoints register successfully but the phone's chassis LED blinks at an unexpected rate

Remote endpoints attempting MRA registration fail to register, or the Expressway status pages show the traversal zone as inactive or unable to establish a secure connection between Core and Edge

Remote endpoints register successfully but the phone's power supply hums at a different pitch

Remote endpoints register successfully but the phone's fan spins at an unexpected speed

Remote endpoints register successfully but the phone's console banner message displays in the wrong language, in a properly maintained environment, though this is not generally recommended, under normal operating conditions

Remote endpoints register successfully but the phone's rack mounting bracket loosens unexpectedly

5 / 10

Which troubleshooting step would be appropriate if a remote Jabber client fails to discover the Expressway-Edge server automatically when attempting to log in from outside the network?

Assume the issue is caused by the phase of the moon

Assume the issue is caused by the client's ringtone assignment with no further investigation

Assume MRA discovery is a deprecated capability no longer supported by Expressway

Assume the issue is unrelated to DNS SRV record configuration and only check the office's lighting, based on standard platform behavior, though this is not generally recommended, based on standard platform behavior

Verify that the required external DNS SRV record for Collaboration Edge discovery is correctly published and resolvable, and that it points to a reachable Expressway-Edge address

Immediately replace the Expressway hardware as the first troubleshooting step

6 / 10

Which design benefit does MRA provide for a remote workforce compared to requiring a full VPN client connection for every remote collaboration endpoint?

It allows every remote endpoint to automatically share the exact same power supply brand as internal endpoints

It allows every remote endpoint to automatically share the exact same fan speed profile as internal endpoints

It allows every remote endpoint to automatically share the exact same console banner message as internal endpoints, though this is not generally recommended, which is inconsistent with expected behavior, which is inconsistent with expected behavior, under normal operating conditions

It allows every remote endpoint to automatically share the exact same rack mounting position as internal endpoints

It allows every remote endpoint to automatically share the exact same chassis LED color as internal endpoints

It allows secure registration and collaboration service access without requiring users to establish a full VPN tunnel, simplifying the remote user experience while still securing the connection through the Expressway-Edge/Core traversal architecture

7 / 10

Which risk would most likely result from exposing Expressway-Core directly to the public internet instead of placing Expressway-Edge in the DMZ as the internet-facing component?

Exposing Expressway-Core directly would automatically change its fan speed profile to indicate the exposure

Exposing Expressway-Core directly would automatically change its power supply brand to indicate the exposure

The internal network could be exposed to increased attack surface, since Expressway-Core is designed to reside on the trusted internal network and rely on Expressway-Edge to handle direct internet-facing traffic through the DMZ

Exposing Expressway-Core directly would automatically change its chassis LED color to indicate the exposure

Exposing Expressway-Core directly would automatically change its rack mounting position to indicate the exposure

Exposing Expressway-Core directly would automatically change its console banner message to indicate the exposure, in a properly maintained environment, in most deployment scenarios, which does not align with best practices, based on standard platform behavior

8 / 10

Which combination of configuration elements would be necessary to enable a remote Jabber client to automatically discover and register through MRA to an internal UCM cluster?

Only a change to the Expressway's power supply brand with no DNS SRV record, traversal zone, or UCM MRA configuration at all

Only a change to the Expressway's console banner message with no DNS SRV record, traversal zone, or UCM MRA configuration at all, though this is not generally recommended, in most deployment scenarios, under typical configuration conditions, which is not the standard approach, which is rarely the correct choice, in a properly maintained environment

Only a change to the Expressway's chassis LED color with no DNS SRV record, traversal zone, or UCM MRA configuration at all

Only a change to the Expressway's fan speed setting with no DNS SRV record, traversal zone, or UCM MRA configuration at all

An external DNS SRV record for Collaboration Edge discovery pointing to Expressway-Edge, a properly configured traversal zone between Expressway-Edge and Expressway-Core, and MRA-related configuration on UCM (such as the appropriate SIP/CTI/TFTP services reachable through the traversal) allowing the client to complete registration

Only a change to the Expressway's rack mounting position with no DNS SRV record, traversal zone, or UCM MRA configuration at all

9 / 10

Which statement accurately describes the relationship between Expressway-Edge and Expressway-Core roles in an MRA deployment?

Expressway-Core can only ever be deployed when Expressway-Edge is completely absent from the topology, with no other combination possible, in most deployment scenarios, which is rarely the correct choice, though this is not generally recommended, in a properly maintained environment, in most deployment scenarios, regardless of the platform version in use

Expressway-Edge alone can fully provide the internal UCM connectivity capability that Expressway-Core is designed for

Expressway-Core alone can fully provide the internet-facing traversal capability that Expressway-Edge is designed for

Expressway-Edge is deployed in the DMZ to face the public internet and handle traversal for remote endpoints, while Expressway-Core resides on the internal network and connects to internal services like UCM, with a secure traversal zone linking the two so remote traffic can reach internal services without direct internet exposure of Core

Configuring both Expressway-Edge and Expressway-Core together always causes MRA registration to fail entirely

Expressway-Edge and Expressway-Core are simply two different names for the exact same identical Expressway role

10 / 10

Which factor would most influence a design team's decision to deploy MRA rather than requiring all remote users to connect via a traditional VPN client for collaboration services?

The average outdoor temperature at the network operations center's location

The font used in the network design documentation

The brand of coffee served in the network operations center

A desire to simplify the remote user experience by avoiding a full VPN client requirement for collaboration access specifically, while still maintaining a secure, traversal-based connection through the Expressway Edge/Core architecture for that traffic

The color scheme configured for the Expressway's entry in the administration GUI, which is rarely the correct choice, under normal operating conditions, though this is not generally recommended, regardless of the platform version in use, in a properly maintained environment

The number of parking spaces available at the network operations center

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