CLCOR ON Premises Call Control Practice Test 5 — 15 Questions

Question 1

What is the primary function of a 'Location' object in CUCM?

Accepted Answer

To perform Call Admission Control (CAC).. The primary function of a Location object in CUCM is to perform Call Admission Control (CAC), which limits the number of simultaneous calls (audio/video bandwidth) between locations to prevent oversubscription of WAN links. Locations define the available bandwidth and track usage for calls between them. Other settings like time zone, CSS, and codec are handled by other objects.

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To define the phone's time zone.

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To define the phone's CSS.

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To define the phone's codec.

Question 2

You are troubleshooting a one-way audio issue. The phone can register, but no audio is heard. What should you check first?

Accepted Answer

Network ACLs and port accessibility for RTP.. One-way audio in VoIP is almost always a media path issue, not a signaling issue. Since the phone registers successfully, SIP signaling is working, but RTP (Real-time Transport Protocol) packets are not traversing the network. The first thing to check is whether network ACLs, firewalls, or NAT devices are blocking the UDP port range used for RTP (typically 16384–32767 on Cisco Unified Communications Manager).

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The phone's directory number.

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The CSS of the device.

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The phone's firmware version.

Question 3

Which file does an IP phone download first to obtain its configuration from the TFTP server?

Accepted Answer

SEP[MAC].cnf.xml. An IP phone booting on a CUCM network first obtains its network parameters via DHCP, then contacts the TFTP server and downloads its device-specific configuration file named SEP[MAC].cnf.xml, where [MAC] is the phone's MAC address in uppercase hex. This file contains the phone's DN, cluster TFTP addresses, and other settings. It is the primary per-device configuration file and is downloaded before any shared files like dialplan.xml or ringlist.xml.

Answer

Dialplan.xml

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Ringlist.xml

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CTLFile.tlv

Question 4

A branch office has a limited bandwidth link. You need to ensure that no more than 5 calls can be made across the WAN at once. What should you configure?

Accepted Answer

Define a Location and set the Audio Bandwidth limit.. CUCM Locations implement Call Admission Control (CAC) by defining the total audio/video bandwidth available between locations. Setting the Audio Bandwidth limit on a Location (e.g., to a value that supports only 5 G.711 calls, roughly 400 kbps plus overhead) ensures CUCM denies the 6th call across the WAN. Locations are assigned to devices via Device Pools, and the bandwidth between any two locations is calculated based on the configured limits.

Answer

Modify the Region setting.

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Create a CSS to block calls.

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Configure a Route Filter.

Question 5

Where do you define the default dial plan for a new CUCM cluster?

Accepted Answer

You create partitions, CSS, and route patterns manually.. In Cisco Unified Communications Manager (CUCM), there is no single 'default dial plan' configuration page. A dial plan is built from three core components: partitions (which group route patterns), calling search spaces (CSS) (which define the order of partitions a device can search), and route patterns (which match dialed digits and determine the next hop). These must be manually created and configured by the administrator. CUCM does not ship with a pre-built default dial plan, so option C correctly describes the required manual process.

Answer

System > Dial Plan Configuration

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Service Parameters

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Enterprise Parameters

Question 6

You have a cluster with multiple nodes. You want to ensure that phones in the 'New York' office prioritize registration to a 'New York' subscriber. How do you implement this?

Accepted Answer

Create a CM Group with the local subscribers and assign it to the Device Pool.. A Cisco CallManager Group (CM Group) defines an ordered list of subscribers that devices in an associated Device Pool will register to. By creating a CM Group containing the New York subscribers and assigning it to the Device Pool used by New York phones, those phones will prefer the local subscriber for registration, keeping signaling local and reducing WAN dependency. This is the standard CUCM mechanism for call processing redundancy and locality.

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Use a Route Group to point to the subscriber.

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Assign the phones to a specific Region.

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Configure the TFTP server address in the phone.

Question 7

Which component in the CUCM dial plan allows you to match a pattern and simultaneously transform it into a new number before the final route lookup?

Accepted Answer

Translation Pattern. A Translation Pattern in CUCM matches a dialed pattern and transforms it into a new number before the final route lookup. It can add, remove, or replace digits and then apply a CSS to route the translated number. This is used for dial plan normalization, such as converting a 4-digit extension to an E.164 number or implementing global dialing.

Answer

Route Pattern

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Partition

Answer

Route Group

Question 8

Which tool can be used to perform a bulk import of users and devices into CUCM?

Accepted Answer

Bulk Administration Tool (BAT). The Bulk Administration Tool (BAT) is specifically designed for bulk operations in Cisco Unified Communications Manager (CUCM), including importing users and devices. It allows administrators to add, update, or delete large numbers of records using CSV files, and it validates the data before insertion. BAT is the only tool among the options that provides this bulk import capability natively within CUCM.

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Cisco Unified Reporting

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Dialed Number Analyzer

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Cisco Prime Collaboration

Question 9

What is the primary difference between a 'Route Pattern' and a 'Translation Pattern'?

Accepted Answer

Route patterns route calls; translation patterns modify numbers.. Route patterns are the dial plan elements that actually route calls to a destination (gateway, trunk, or another DN) by matching the dialed digits and applying a route list/route group. Translation patterns, by contrast, do not route calls on their own — they transform the dialed digits (via discard/prefix digits, calling/called party transformations) and then hand the call back to the dial plan for further matching. This separation lets administrators normalize numbers before routing decisions are made.

Answer

Translation patterns route calls; route patterns modify numbers.

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There is no functional difference.

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Route patterns are for internal calls; translation patterns are for external.

Question 10

Which THREE of the following items can be defined within a Device Pool?

Accepted Answer

Location. In Cisco Unified Communications Manager, a Device Pool is a template that groups common settings applied to devices such as IP phones and gateways. Option A (Location) is correct because the Device Pool specifies the Location, which enforces call admission control bandwidth limits between sites. Option B (Date/Time Group) is correct because the Device Pool defines the Date/Time Group that determines the time zone and date/time format displayed on the devices. Option D (Region) is correct because the Device Pool assigns the Region, which controls the codec selection for calls between devices in different regions. Option C (Translation Pattern) is not part of a Device Pool; translation patterns are configured under Call Routing > Translation Pattern and are applied during call routing, not as a device-level setting. Option E (Route Partition) is also not defined in a Device Pool; partitions are assigned to directory numbers, route patterns, and translation patterns via Calling Search Spaces, not to device pools.

Answer

Translation Pattern

Answer

Route Partition

Question 11

Which TWO of the following are valid types of Media Resources in CUCM?

Accepted Answer

Music on Hold Server. In Cisco Unified Communications Manager, Media Resources are the software or hardware components that provide media-processing functions for calls, and the two valid types listed here are the Music on Hold (MOH) Server (option A) and the Conference Bridge (option B). A Music on Hold Server is a media resource because it streams audio to callers placed on hold, and it is configured under Media Resources > Music On Hold Server in CUCM. A Conference Bridge is likewise a media resource because it mixes the audio streams of multiple participants in a conference call, and it appears under Media Resources > Conference Bridge. The other options are not media resources: a Calling Search Space (C) is a dial-plan construct that defines which partitions a device or line can search for call routing, a Route Group (D) is a list of gateways or trunks used for route-list selection in call routing, and a Translation Pattern (E) is a dial-plan element that manipulates the called-party number before routing. None of C, D, or E perform any media processing, so they do not qualify as Media Resources in CUCM.

Answer

Calling Search Space

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Route Group

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Translation Pattern

Question 12

Which THREE of the following tasks are required to set up a basic SIP trunk in CUCM?

Accepted Answer

Create a SIP Trunk Security Profile. To set up a basic SIP trunk in CUCM, you must create a SIP Trunk Security Profile (option B), which defines the security settings such as device authentication mode, incoming/outgoing transport (TCP/UDP/TLS), and digest authentication for the trunk. You must also create a SIP Profile (option C), which defines SIP timers, normalization scripts, and header handling behavior applied to the trunk. Finally, you must create the SIP Trunk itself (option E), which binds the trunk to a device pool, calling search space, and associates the SIP Trunk Security Profile and SIP Profile. A Route Filter (option A) is used with route lists and route groups for digit manipulation and is not mandatory for a basic SIP trunk, and a Translation Pattern (option D) is used for number translation and is likewise not required for basic SIP trunk setup.

Answer

Create a Route Filter

Answer

Create a Translation Pattern

Question 13

Which TWO of the following are valid methods to handle digit manipulation in CUCM?

Accepted Answer

Translation Pattern. Translation Pattern (C) is a valid digit-manipulation method in CUCM because it matches a dialed digit string in a partition and applies transformations such as discarding digits (Discard Digits), prefixing digits, or rewriting the called/calling number before the call is routed. Calling Party Transformation Pattern (E) is also valid because it specifically manipulates the calling-party number (and related presentation settings) on inbound or outbound calls by matching the calling number and applying prefix, strip, or transformation masks. Route Filter (A) is not a digit-manipulation tool; it is used with route lists and time schedules to filter which route groups or dial peers can be selected based on dial-peer tags, not to rewrite digits. Region Matrix (B) governs codec selection between regions for calls, not digit manipulation. Location Configuration (D) is used for call admission control and bandwidth allocation between locations, not for altering dialed digits.

Answer

Route Filter

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Region Matrix

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Location Configuration

Question 14

Which service must be running for a phone to receive its configuration file?

Accepted Answer

Cisco TFTP. The Cisco TFTP service must be running for a phone to receive its configuration file. When a phone boots, it requests its configuration file (e.g., SEP<MAC>.cnf.xml) from the TFTP server, which is a core CUCM service. Without TFTP, the phone cannot download its configuration, firmware, or dial plan, and will fail to register.

Answer

Cisco Database Layer Monitor

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Cisco CallManager

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Cisco CTI Manager

Question 15

Which TWO of the following fields are required when defining a Route Pattern?

Accepted Answer

Gateway/Route List. In Cisco Unified Communications Manager, a Route Pattern must specify the destination to match and where to send the matched calls, so option A (Gateway/Route List) is required to define the egress path for the pattern, and option E (Route Pattern String) is required to define the dialed digits or wildcard pattern that the route pattern matches. Options B (Codec), C (Bandwidth Limit), and D (Softkey Template) are not mandatory fields when creating a route pattern; codec and bandwidth are typically associated with regions/locations or device pools, and softkey templates apply to devices such as phones, not to route patterns themselves.

Answer

Codec

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Bandwidth Limit

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Softkey Template