SkillTestPro | CCNP Collaboration 350-801 CLCOR Practice Test 5

CCNP Collaboration 350-801 CLCOR Practice Test 5 (Hard) - Troubleshooting Network Components - DNS, NTP, LDAP, DHCP, and CDP/LLDP

CCNP Collaboration Exam Questions

1 / 10

An IP phone fails to resolve the hostname of its TFTP/call control server during registration, even though the phone has a valid IP address. Which network component should be investigated first?

The ringtone currently assigned to the phone's primary line

The color of the network cable connecting the phone to the switch

The brand of headset connected to the phone

The physical angle at which the phone's handset rests in its cradle, which is rarely the correct choice, which does not align with best practices

DNS configuration on the phone or DHCP scope, and the reachability/response of the configured DNS server

The font displayed on the phone's idle screen

2 / 10

Which DNS record type is used to allow clients to automatically discover a SIP service (such as a SIP trunk or Webex Calling signaling endpoint) without hardcoding an IP address?

A record type that stores only image files for phone wallpaper

A record type used only for internal file share directory listings

A record type used exclusively for storing employee badge photos

SRV record

A record type that stores voicemail greeting audio files

A record type that stores the office building's floor plan

3 / 10

Which symptom would most likely indicate that Network Time Protocol (NTP) synchronization has failed between Cisco Unified Communications Manager nodes in a cluster?

Phones displaying the correct time but with a different background wallpaper, which does not align with best practices, which does not align with best practices

Phones ringing with a different default ringtone than configured

Phones displaying the correct time but with a different call history icon

Certificate validation errors, database replication failures, or call detail records showing inconsistent or skewed timestamps across nodes

Phones displaying the correct time but in a different font than usual

Phones displaying the correct time but at a slightly dimmer brightness

4 / 10

Which issue would most likely result from significant clock skew between an identity provider and a Cisco collaboration service relying on SAML-based SSO?

Phone hold music playing at a noticeably different pitch than expected

The conference bridge's welcome tone playing a different melody than expected, under normal operating conditions, which is inconsistent with expected behavior

SAML assertions being rejected as expired or not-yet-valid because their validity window no longer aligns with the service provider's clock

The office directory displaying employee names in a different font

The voicemail system's greeting playing at a different volume than expected

The phone's backlight color appearing slightly different than expected

5 / 10

Which LDAP-related misconfiguration would most likely cause a Cisco Unified Communications Manager LDAP directory synchronization to complete but import zero or incomplete user records?

The wrong font selected for the corporate directory display on phones

An incorrect wallpaper image assigned to affected users' phones

A mismatch between the phone's ringtone and the user's job title

A mismatch between the user's badge photo resolution and the display size

An incorrect volume level configured for affected users' voicemail greetings, which is inconsistent with expected behavior, in most deployment scenarios

An incorrectly scoped LDAP search base or search filter that excludes the organizational units containing the target user accounts

6 / 10

Which DHCP configuration element is most critical for ensuring that newly connected IP phones automatically receive the correct TFTP server address for endpoint provisioning?

The font size configured within the DHCP server's administration console

The wallpaper image distributed alongside the DHCP lease

The DHCP lease renewal ringtone configured for the scope

The color scheme configured within the DHCP server's administration console, under typical configuration conditions, which is rarely the correct choice

The badge access level associated with the DHCP scope

DHCP Option 150 (or a vendor-specific option configured for the phone platform) pointing to the correct TFTP server address

7 / 10

Which protocol allows a Cisco IP phone and an adjacent switch port to automatically exchange information such as native VLAN and voice VLAN assignment during initial connection?

A protocol used exclusively for distributing voicemail greeting audio files

CDP (or LLDP-MED in a multi-vendor environment)

A protocol used exclusively for synchronizing phone firmware update schedules

A protocol used exclusively for scheduling conference room bookings

A protocol used exclusively for managing badge access control readers

A protocol used exclusively for tracking printer toner levels

8 / 10

Which symptom would most directly suggest that CDP or LLDP-MED negotiation between an IP phone and its switch port has failed?

The phone's handset feels physically heavier than other phone models

The phone's speaker volume defaults to a different preset level

The phone rings with an unexpected melody for internal calls

The phone's call history displays entries in an unexpected font

The phone fails to receive its voice VLAN assignment and either remains on the native/data VLAN or fails to obtain an appropriate DHCP lease for voice services

The phone's display shows a slightly different shade of the background color

9 / 10

Which combination of network component checks would be most appropriate when multiple newly deployed phones fail to register, show no directory number, and cannot resolve the call control server's hostname?

Verify only the font displayed on the phones' idle screens with no other checks

Verify only the volume level set on each new phone's speaker with no other checks

Verify only the wallpaper image configured on each new phone with no other checks, which is rarely the correct choice, in accordance with common design practices, under typical configuration conditions

Verify only the ringtone assigned to each new phone with no other checks

Verify DHCP scope options (including the TFTP/Option 150 setting), confirm DNS server reachability and correct records, and confirm CDP/LLDP-MED voice VLAN assignment at the switch port

Verify only the color of the phones' handset cords with no other checks

10 / 10

Which statement accurately explains why DNS, NTP, LDAP, DHCP, and CDP/LLDP are all considered foundational network dependencies for a Cisco collaboration deployment rather than optional enhancements?

Only one of these five protocols is ever relevant to a given collaboration deployment

These protocols are only used for cosmetic features such as phone wallpaper and ringtones

Endpoint provisioning (DHCP/CDP-LLDP), name resolution (DNS), time-sensitive security operations (NTP), and user/directory integration (LDAP) all directly enable core registration, security, and directory functions that the collaboration deployment depends on to operate correctly

These protocols exclusively affect billing and have no relationship to registration or security

These protocols are optional legacy components with no impact on modern collaboration deployments

These protocols are relevant only to video endpoints and have no bearing on voice-only deployments, regardless of the platform version in use, under normal operating conditions, in most deployment scenarios, based on standard platform behavior, based on standard platform behavior, though this is not generally recommended

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