CLCOR ON Premises Call Control Practice Test 3 — 15 Questions

Question 1

Which component allows for automatic rerouting of a call if the primary gateway is busy or unreachable?

Accepted Answer

Route List. Route Lists include a list of Route Groups, and if a gateway in a route group fails or is busy, the route list can fail over to the next group or gateway.

Answer

Partition

Answer

Device Pool

Answer

Route Group

Question 2

Which service in CUCM is responsible for handling the registration of SIP devices?

Accepted Answer

Cisco CallManager. The Cisco CallManager service handles all primary call control, including SIP registration.

Answer

Cisco Database Layer Monitor

Answer

Cisco CTIManager

Answer

Cisco TFTP

Question 3

What is the function of a 'Device Pool' in CUCM?

Accepted Answer

To group shared settings for devices.. A Device Pool is a collection of device-specific configuration settings like location, date/time, and CM group, which can be applied to devices in bulk.

Answer

To define user permissions.

Answer

To manage media resources.

Answer

To control call routing.

Question 4

How do you verify if a phone is registered to the primary CUCM subscriber?

Accepted Answer

Check the Status field in Device > Phone.. Device > Phone > Find > Look at the Status field in the search results or the device configuration page.

Answer

Check the CTI route points.

Answer

Check the Partition status.

Answer

Check the System > Server menu.

Question 5

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

Accepted Answer

To perform Call Admission Control (CAC).. Locations are used to identify the physical site for Call Admission Control (CAC) to limit bandwidth usage.

Answer

To define the phone's time zone.

Answer

To define the phone's CSS.

Answer

To define the phone's codec.

Question 6

Which protocol is primarily used by CUCM to communicate with endpoints for registration and call control?

Accepted Answer

SIP. SCCP (Skinny) or SIP are the two primary protocols used by endpoints to register with CUCM.

Answer

SNMP

Answer

MGCP

Answer

H.323

Question 7

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 is typically a network connectivity issue, such as blocked RTP ports or an incorrect Media Resource configuration.

Answer

The phone's directory number.

Answer

The CSS of the device.

Answer

The phone's firmware version.

Question 8

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

Accepted Answer

SEP[MAC].cnf.xml. IP phones download a configuration file (usually XML) specific to their MAC address (SEP[MAC].cnf.xml) from the TFTP server.

Answer

Dialplan.xml

Answer

Ringlist.xml

Answer

CTLFile.tlv

Question 9

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.. By creating a Location and setting the audio bandwidth limit to 5 times the codec bandwidth (e.g., 5 * 80kbps = 400kbps), you can restrict the call volume.

Answer

Modify the Region setting.

Answer

Create a CSS to block calls.

Answer

Configure a Route Filter.

Question 10

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

Accepted Answer

You create partitions, CSS, and route patterns manually.. Dial plans are constructed using Route Patterns, Partitions, and CSS; there is no single 'default dial plan' switch.

Answer

System > Dial Plan Configuration

Answer

Service Parameters

Answer

Enterprise Parameters

Question 11

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.. By creating a specific CM Group with the New York subscribers in the preferred order and assigning it to the New York Device Pool.

Answer

Use a Route Group to point to the subscriber.

Answer

Assign the phones to a specific Region.

Answer

Configure the TFTP server address in the phone.

Question 12

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 is used to change digits (e.g., adding an access code) before the call is routed to a final destination.

Answer

Route Pattern

Answer

Partition

Answer

Route Group

Question 13

What is the result of using a '#' character at the end of a Route Pattern?

Accepted Answer

It forces immediate routing.. The '#' character acts as a terminator, allowing the call to be routed immediately without waiting for the inter-digit timeout.

Answer

It doubles the inter-digit timeout.

Answer

It marks the call as an emergency call.

Answer

It blocks the call.

Question 14

Which service, when enabled, allows CUCM to act as a recording server for calls?

Accepted Answer

Cisco Unified Communications Manager. The Cisco Unified Communications Manager (CallManager) service can be configured to support Built-in Bridge (BIB) for recording.

Answer

Cisco Recording Server

Answer

Cisco CTI Manager

Answer

Cisco Media Resource Manager

Question 15

You are implementing a SIP trunk to the PSTN. The carrier requires the 'Diversion' header for call forwarding scenarios. Where in CUCM do you configure this?

Accepted Answer

SIP Profile. The SIP Profile is the correct location to enable the redirection of headers like Diversion, which is required for proper call forwarding identification.

Answer

SIP Trunk Security Profile

Answer

Route Pattern

Answer

Device Pool