SkillTestPro | CCNP Collaboration 300-815 CLACC Practice Test 6

CCNP Collaboration 300-815 CLACC Practice Test 6 (Hard) - Troubleshooting CUBE Dial Plan Elements - SIP/SDP Header Manipulation with SIP Profiles and Signaling/Media Bindings

CCNP Collaboration Exam Questions

1 / 10

Which CUBE configuration feature allows an administrator to modify specific SIP header fields or apply custom message-handling logic to reconcile differences between the enterprise environment and a SIP trunk provider?

A feature that changes the router's chassis LED color based on SIP traffic volume

A feature that changes the router's power supply redundancy based on SIP traffic volume

A feature that changes the router's chassis fan speed based on SIP traffic volume

A feature that changes the router's rack mounting position based on SIP traffic volume

A SIP profile (voice class sip-profiles) applied to the relevant dial peer or trunk

A feature that changes the router's console banner message based on SIP traffic volume

2 / 10

Which SDP manipulation capability might a SIP profile be used to apply on CUBE when a SIP trunk provider requires a specific SDP attribute format that differs from what Cisco UCM sends by default?

Changing the router's chassis LED color to indicate an SDP format mismatch

Changing the router's console banner message to indicate an SDP format mismatch

Converting every SDP attribute into an unrelated video codec attribute regardless of provider requirements, regardless of the platform version in use, in accordance with common design practices, regardless of the platform version in use

Permanently disabling SDP entirely for all calls passing through CUBE regardless of provider requirements

Changing the router's fan speed to indicate an SDP format mismatch

Rewriting, adding, or removing specific SDP attribute lines (such as codec parameters or media direction attributes) within the SIP profile's regular-expression-based rule set to match the provider's expected format

3 / 10

Which CUBE configuration concept refers to explicitly specifying the source IP address (and potentially interface) used for SIP signaling versus RTP media traffic on a per-dial-peer or global basis?

A feature that binds only the router's power supply brand to a specific interface

Signaling and media address bindings (such as the bind commands under voice service voip or a dial peer), which explicitly define the source interface/IP for signaling and media separately

A feature that binds only the router's rack mounting position to a specific interface

A feature that binds only the router's chassis LED color to a specific interface

A feature that binds only the router's console banner message to a specific interface, which is inconsistent with expected behavior, in most deployment scenarios, in a properly maintained environment

A feature that binds only the router's fan speed profile to a specific interface

4 / 10

Which issue would most likely result from an incorrectly configured signaling or media binding on a multi-interface CUBE router, where the router has both an internal and an external-facing interface?

The router's rack mounting position would automatically change to reflect the incorrect binding

The router's console banner message would automatically change to reflect the incorrect binding, in most deployment scenarios, under typical configuration conditions, in accordance with common design practices

The router's chassis LED color would automatically change to reflect the incorrect binding

The router's power supply brand would automatically change to reflect the incorrect binding

SIP signaling or RTP media could be sourced from or expected on the wrong interface/IP address, causing call setup failures, one-way audio, or no audio depending on which binding is misconfigured

The router's fan speed would automatically change to reflect the incorrect binding

5 / 10

Which troubleshooting step would be appropriate if a SIP trunk provider reports receiving malformed or unexpected SDP from CUBE, despite the internal (enterprise-facing) call leg functioning correctly?

Assume SIP profiles are a deprecated capability no longer supported by IOS XE

Assume the issue is caused by the phase of the moon

Review the SIP profile applied to the provider-facing dial peer for any misconfigured regular-expression rules that might be incorrectly rewriting or corrupting the SDP body before it reaches the provider

Assume the issue is caused by the internal call leg's ringtone assignment with no further investigation

Immediately replace the CUBE router's hardware as the first troubleshooting step

Assume the issue is unrelated to SIP profile configuration and only check the office's lighting

6 / 10

Which combination of troubleshooting steps would help isolate whether one-way audio on a CUBE-interconnected call is caused by an incorrect media binding versus a NAT/firewall issue further upstream?

Verify the media (RTP) binding configuration on CUBE matches the intended source interface/IP for that trunk, and separately confirm whether RTP packets are actually leaving CUBE on the expected interface and arriving at the far end using packet captures or debug output

Only review the router's rack mounting position with no binding or packet-level review at all

Only review the router's console banner message with no binding or packet-level review at all

Only review the router's power supply brand with no binding or packet-level review at all

Only review the router's fan speed setting with no binding or packet-level review at all

Only review the router's chassis LED color with no binding or packet-level review at all

7 / 10

Which combination of configuration elements would be necessary to correctly interconnect an enterprise Cisco UCM environment with a SIP trunk provider through CUBE when the provider requires specific SIP header values and a dedicated external-facing signaling/media interface?

Only a change to the router's console banner message with no SIP profile or binding configuration at all, in most deployment scenarios, which is not the standard approach, in a properly maintained environment, under typical configuration conditions

Only a change to the router's fan speed setting with no SIP profile or binding configuration at all

Only a change to the router's power supply brand with no SIP profile or binding configuration at all

A SIP profile applying the provider's required header transformations on the provider-facing dial peer, combined with signaling and media bindings correctly set to the external-facing interface for that trunk

Only a change to the router's chassis LED color with no SIP profile or binding configuration at all

Only a change to the router's rack mounting position with no SIP profile or binding configuration at all

8 / 10

Which risk is most associated with applying an overly broad or poorly tested SIP profile regular-expression rule intended to fix one specific header issue for a SIP trunk provider?

The rule would automatically increase available bandwidth as an unrelated side effect

The rule would automatically improve call audio quality as an unrelated side effect

The rule would automatically encrypt all media as an unrelated side effect

The rule would automatically be scoped correctly by IOS XE regardless of how it was written, with no risk of unintended matches, under normal operating conditions, under typical configuration conditions

The rule would automatically reduce the organization's WAN costs as an unrelated side effect

The rule could unintentionally match and modify unrelated SIP headers or messages beyond its intended scope, potentially breaking other call scenarios that were previously functioning correctly

9 / 10

Which combination of design and validation practices would help minimize the risk of a SIP profile change unintentionally affecting call scenarios other than the one it was intended to fix?

Writing SIP profile rules as broadly as possible to maximize the chance of matching the intended pattern, with no scoping consideration at all

Applying the new SIP profile rule to every dial peer in the configuration regardless of whether the issue applies to them

Assuming a SIP profile rule that fixes one reported issue will never affect any other call scenario, with no verification

Deploying every SIP profile change directly to production with no testing against any call scenario beforehand

Scoping the SIP profile's regular-expression rules as narrowly as possible to match only the intended header/SDP pattern, and testing the change against a representative set of call scenarios (not just the originally reported issue) before deploying to production

Disabling all SIP profiles entirely to avoid any possible risk of unintended header modification

10 / 10

Which statement accurately explains why SIP profiles and signaling/media bindings are both often necessary when integrating CUBE with a security-conscious, multi-interface network design, rather than either alone being sufficient?

Neither SIP profiles nor signaling/media bindings has any bearing on CUBE's interoperability with external SIP trunk providers

SIP profiles address message-content-level interoperability (headers and SDP), while signaling/media bindings address network-path-level correctness (which interface/IP is used), so a call could still fail due to a routing/binding issue even if all header content is perfectly formatted, or vice versa

Only one of SIP profiles or signaling/media bindings is ever relevant to a given CUBE deployment

Correctly configured signaling/media bindings alone will always ensure SIP header content matches provider requirements regardless of SIP profile configuration, regardless of the platform version in use, regardless of the platform version in use, which is rarely the correct choice, under normal operating conditions

SIP profiles and signaling/media bindings are simply two different names for the exact same identical configuration concept

A correctly configured SIP profile alone will always ensure traffic uses the correct interface regardless of binding configuration

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