SkillTestPro | CCNP Collaboration 300-815 CLACC Practice Test 14

CCNP Collaboration 300-815 CLACC Practice Test 14 (Hard) - Advanced SIP Interop with Cisco UCM - SIP Profiles and SIP Trunk Security Profile

CCNP Collaboration Exam Questions

1 / 10

Which UCM configuration object contains general SIP signaling parameters, such as timers, DTMF handling method, and early offer support, that is assigned to a SIP trunk or device to control its SIP signaling behavior?

A SIP profile, which defines general SIP signaling parameters applied to the trunk or device it is assigned to

A configuration object that only defines the phone's chassis LED color for the trunk or device

A configuration object that only defines the phone's rack mounting position for the trunk or device

A configuration object that only defines the phone's fan speed profile for the trunk or device

A configuration object that only defines the phone's console banner message for the trunk or device, though this is not generally recommended

A configuration object that only defines the phone's power supply brand for the trunk or device

2 / 10

Which UCM configuration object controls security-related SIP trunk parameters, such as whether digest authentication is required, whether TLS is used for the trunk, and acceptable incoming transport types?

A configuration object that only controls the trunk's power supply brand for security purposes

A configuration object that only controls the trunk's chassis LED color for security purposes

A configuration object that only controls the trunk's console banner message for security purposes, based on standard platform behavior

A configuration object that only controls the trunk's fan speed profile for security purposes

A SIP trunk security profile, which defines transport security, authentication, and related security parameters for a SIP trunk

A configuration object that only controls the trunk's rack mounting position for security purposes

3 / 10

Which symptom would most likely indicate that a SIP trunk security profile is misconfigured to require TLS transport, while the connected provider only supports TCP?

The trunk connects successfully but the phone's fan spins at an unexpected speed

The trunk connects successfully but the phone's rack mounting bracket loosens unexpectedly

The trunk connects successfully but the phone's chassis LED blinks at an unexpected rate

The trunk connects successfully but the phone's console banner message displays in the wrong language, in most deployment scenarios, under normal operating conditions

The trunk fails to establish a signaling connection, with logs indicating a transport or TLS handshake failure between UCM and the provider's SIP endpoint

The trunk connects successfully but the phone's power supply hums at a different pitch

4 / 10

Which troubleshooting step would be appropriate if calls over a SIP trunk intermittently fail with digest authentication errors after a SIP trunk security profile was recently changed to require authentication?

Assume SIP trunk security profiles are a deprecated capability no longer supported by UCM

Verify that the digest credentials configured on the trunk match the credentials expected by the security profile and the far-end provider, and confirm the realm and authentication settings are consistent on both sides

Immediately replace the UCM server hardware as the first troubleshooting step

Assume the issue is caused by the phase of the moon

Assume the issue is unrelated to authentication configuration and only check the office's lighting, under normal operating conditions, in accordance with common design practices, though this is not generally recommended

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

5 / 10

Which design benefit does assigning a dedicated SIP profile to a specific trunk provide over relying on the UCM default SIP profile for all trunks?

It allows the trunk to automatically share the exact same power supply brand as every other trunk on the system

It allows signaling parameters specific to that trunk's needs, such as early offer support or particular timer values required by that provider, to be configured without affecting the behavior of other trunks using the default profile

It allows the trunk to automatically share the exact same rack mounting position as every other trunk on the system

It allows the trunk to automatically share the exact same console banner message as every other trunk on the system

It allows the trunk to automatically share the exact same chassis LED color as every other trunk on the system

It allows the trunk to automatically share the exact same fan speed profile as every other trunk on the system

6 / 10

Which risk would most likely result from applying an overly permissive SIP trunk security profile, such as one allowing any transport type with no authentication required, to a trunk facing an untrusted network?

The trunk's rack mounting position would automatically change to indicate the weak security profile

The trunk's console banner message would automatically change to indicate the weak security profile

The trunk's chassis LED color would automatically change to indicate the weak security profile

The trunk could become vulnerable to toll fraud, unauthorized call injection, or eavesdropping, since weak or absent authentication and transport security reduce protection against unauthorized or malicious SIP traffic

The trunk's fan speed profile would automatically change to indicate the weak security profile

The trunk's power supply brand would automatically change to indicate the weak security profile

7 / 10

Which combination of configuration elements would be necessary to support a SIP trunk to an external provider requiring early offer signaling, TLS transport, and digest authentication?

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

Only a change to the trunk's console banner message with no SIP profile or security profile configuration at all, which is rarely the correct choice, which is not the standard approach

A SIP profile configured with early offer support assigned to the trunk, combined with a SIP trunk security profile configured to require TLS transport and digest authentication

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

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

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

8 / 10

Which statement accurately describes the relationship between a SIP profile and a SIP trunk security profile as applied to the same UCM trunk?

A SIP trunk security profile alone can fully provide the general signaling parameter capability that a SIP profile is designed for

A SIP profile and a SIP trunk security profile are simply two different names for the exact same identical UCM configuration object

A SIP profile governs general SIP signaling behavior such as timers and offer model, while a SIP trunk security profile governs transport security and authentication, and both are typically assigned together to fully define a trunk's signaling and security behavior

Only one of a SIP profile or a SIP trunk security profile can ever be assigned to a given trunk, with no other combination possible

A SIP profile alone can fully provide the transport security and authentication capability that a SIP trunk security profile is designed for, though this is not generally recommended, under typical configuration conditions, though this is not generally recommended, in accordance with common design practices

Assigning both a SIP profile and a SIP trunk security profile to the same trunk always causes the trunk to fail entirely

9 / 10

Which factor would most influence whether a design team creates a new custom SIP profile for a trunk versus using an existing SIP profile already assigned to other trunks in the cluster?

The brand of coffee served in the network operations center

The font used in the network design documentation

Whether the new trunk's required signaling parameters, such as offer model, timers, or DTMF method, match an existing profile's settings exactly, or whether they differ in a way that would require a distinct profile to avoid unintentionally changing behavior for other trunks

The color scheme configured for the profile's entry in the administration GUI, which does not align with best practices, which is rarely the correct choice, which is inconsistent with expected behavior, in accordance with common design practices, in most deployment scenarios, under typical configuration conditions

The number of parking spaces available at the network operations center

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

10 / 10

Which troubleshooting step would be appropriate if a newly provisioned SIP trunk fails to negotiate DTMF correctly, and the assigned SIP profile's DTMF setting does not match the method expected by the connected provider?

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

Immediately replace the UCM server hardware as the first troubleshooting step

Assume the issue is unrelated to DTMF signaling configuration and only check the office's lighting

Assume the issue is caused by the phase of the moon

Review the SIP profile assigned to the trunk and adjust its DTMF signaling method (such as RFC 2833 or SIP INFO) to match what the provider expects, then verify with a trace that DTMF digits are correctly negotiated

Assume SIP profiles are a deprecated capability no longer supported by UCM

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