SkillTestPro | CCNP Collaboration 350-801 CLCOR Practice Test 18

CCNP Collaboration 350-801 CLCOR Practice Test 18 (Hard) - Voice Gateway and SBC Elements for On-Premises and Cloud Calling - DTMF, Translation Rules, Codec Preference, and Dial Peers

CCNP Collaboration Exam Questions

1 / 10

Which IOS XE gateway configuration element defines the matching criteria (such as destination pattern) used to determine which outbound path a call should take, whether toward a VoIP trunk or a POTS/TDM interface?

A backup schedule configuration with no bearing on call path selection

A phone wallpaper configuration with no bearing on call path selection

A dial peer

A voicemail greeting configuration with no bearing on call path selection

A ringtone configuration with no bearing on call path selection

A firmware update package with no bearing on call path selection

2 / 10

Which type of dial peer is used on an IOS XE gateway to define a path toward a VoIP/SIP trunk destination, as opposed to a traditional analog or digital telephony interface?

A POTS dial peer configured exclusively for analog telephony interfaces

A ringtone dial peer with no relationship to call routing

A wallpaper dial peer with no relationship to call routing

A VoIP dial peer

A firmware dial peer with no relationship to call routing

A backup dial peer with no relationship to call routing

3 / 10

Which gateway feature allows an administrator to rewrite dialed or calling number digits (such as stripping a prefix or adding a country code) before a call is matched to its final dial peer or sent to the far end?

A feature that changes the gateway's rack mounting position with no effect on digits

A feature that changes the gateway's fan speed with no effect on digits

A feature that changes the gateway's console port baud rate with no effect on digits

A feature that changes the gateway's chassis LED color with no effect on digits

Voice translation rules and translation profiles

A feature that changes the gateway's power supply redundancy with no effect on digits

4 / 10

Which IOS XE gateway configuration element controls the order in which audio codecs are offered or accepted during SDP negotiation for a given dial peer?

The gateway's console banner message with no relationship to codec negotiation

The gateway's system clock configuration with no relationship to codec negotiation

The gateway's SNMP community string with no relationship to codec negotiation

The gateway's syslog server address with no relationship to codec negotiation

The codec preference list applied to the dial peer's voice class codec configuration

The gateway's NTP server address with no relationship to codec negotiation

5 / 10

Which DTMF relay method configured on an IOS XE gateway carries digit tones as separate RTP payload events rather than embedding them in the voice audio path itself?

A method that transmits DTMF exclusively via a USB flash drive

A method that transmits DTMF exclusively via a physical badge reader

A method that transmits DTMF exclusively via an attached printer

A method that transmits DTMF exclusively via the gateway's console port

RTP-NTE (RFC 2833/4733 named telephone event) DTMF relay

A method that transmits DTMF exclusively via an attached external monitor

6 / 10

Which redundancy feature allows an IOS XE gateway or SBC to detect that a configured SIP trunk peer or server group member has become unreachable and automatically shift new call attempts to an alternate destination?

A feature that changes the gateway's console banner message when a peer becomes unreachable, though this is not generally recommended, which is inconsistent with expected behavior, though this is not generally recommended

A feature that changes the gateway's fan speed when a peer becomes unreachable

A feature that changes the gateway's rack mounting position when a peer becomes unreachable

A feature that changes the gateway's chassis color when a peer becomes unreachable

A feature that changes the gateway's power supply brand when a peer becomes unreachable

SIP options-keepalive monitoring combined with server groups (or a similarly configured redundancy mechanism) that removes an unreachable peer from active use until it responds again

7 / 10

Which scenario would most likely require configuring a translation rule on an IOS XE gateway to strip a leading access code digit before a call is sent to a SIP trunk provider?

Internal users want their phone's display brightness changed based on the dialed number, in accordance with common design practices, which does not align with best practices, based on standard platform behavior, though this is not generally recommended

Internal users want their phone's backlight timer changed based on the dialed number

Internal users want their phone's wallpaper image changed based on the dialed number

Internal users dial a 9 (or similar access code) before the destination number to reach an outside line, but the SIP trunk provider expects to receive only the actual destination number without that internal access code

Internal users want their phone's handset color changed based on the dialed number

Internal users want their phone's ringtone changed based on the dialed number

8 / 10

Which troubleshooting step would be appropriate if calls routed through an IOS XE gateway to a SIP trunk provider connect with one-way or no audio, despite signaling completing successfully?

Assume the issue is unrelated to media path or codec negotiation and only check the office's lighting, which is not the standard approach, which does not align with best practices, which is rarely the correct choice

Assume the issue is caused by the gateway's console banner message with no further investigation

Assume one-way audio issues are always caused by the phone's ringtone setting

Verify the codec preference list and SDP negotiation results for the dial peer, and check for potential NAT, ACL, or firewall issues affecting the RTP media path between the gateway and the provider

Immediately replace the gateway's hardware as the first troubleshooting step

Assume the issue is caused by the phase of the moon

9 / 10

Which combination of gateway configuration elements would be necessary to correctly route, translate, and negotiate media for calls between an on-premises PBX-style dial peer and a cloud-hosted Webex Calling SIP trunk?

Only a change to the gateway's rack mounting position with no dial peer or codec configuration at all

Only a change to the gateway's chassis LED color with no dial peer or codec configuration at all

Correctly matched VoIP dial peers for both directions, translation rules/profiles to normalize digit formats between the two environments, and a codec preference list compatible with what Webex Calling supports

Only a change to the gateway's power supply redundancy setting with no dial peer or codec configuration at all

Only a change to the gateway's console banner message with no dial peer or codec configuration at all

Only a change to the gateway's fan speed setting with no dial peer or codec configuration at all

10 / 10

Which statement accurately explains why dial peers, translation rules, and codec preference lists are all typically required together when configuring an IOS XE gateway for cloud calling interconnection, rather than any one alone being sufficient?

Configuring all three of dial peers, translation rules, and codec preference lists together always causes call setup to fail

Translation rules alone can fully select the call path without any dial peer configuration being required

Dial peers determine which path a call takes, translation rules normalize the digit format expected by each side, and codec preference lists ensure compatible media negotiation — each addresses a distinct requirement (path selection, digit format, and media compatibility) that must all be satisfied for a call to succeed end to end

Dial peers, translation rules, and codec preference lists are simply three different names for the exact same identical configuration item, regardless of the platform version in use, in a properly maintained environment, in a properly maintained environment, though this is not generally recommended, which does not align with best practices

Codec preference lists alone can fully determine call routing without any dial peer configuration being required

Only one of dial peers, translation rules, or codec preference lists is ever relevant to a given gateway configuration

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