CLCOR Practice Test 13 — 15 Questions

Question 1

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

Accepted Answer

Route patterns route calls; translation patterns modify numbers.. A Route Pattern is used for routing to a destination, while a Translation Pattern is used for number manipulation during the call setup process.

Answer

Translation patterns route calls; route patterns modify numbers.

Answer

There is no functional difference.

Answer

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

Question 2

You want to ensure that a specific device pool always uses a G.729 codec for inter-site calls. What is the most effective approach?

Accepted Answer

Define a Region matrix setting the audio bitrate between the two regions to G.729.. You define a Region for the site, another Region for the destination site, and then set the audio codec preference between those two regions to G.729.

Answer

Use a translation pattern.

Answer

Set the codec in the device pool.

Answer

Configure the codec on the SIP trunk.

Question 3

You are troubleshooting a scenario where internal calls between two sites are failing. The call fails immediately when dialed. What is the most effective way to verify that the Calling Search Space (CSS) has access to the destination partition?

Accepted Answer

Use the Dialed Number Analyzer (DNA) tool.. The 'Dialed Number Analyzer' (DNA) tool in CUCM is designed specifically to trace the call routing logic based on CSS and partitions.

Answer

Check the 'Route Filter' list.

Answer

Use the 'Route Pattern' report in Cisco Unified Reporting.

Answer

Reset the SIP trunk.

Question 4

A user is unable to use their 'Speed Dial' button. What is the first thing you should verify?

Accepted Answer

The Phone Button Template.. Speed dials are assigned to specific buttons or configured via the User Options page; checking the 'Phone Button Template' is the first step in troubleshooting the button assignment.

Answer

The device pool.

Answer

The user's password.

Answer

The DN's partition.

Question 5

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 6

You want to implement 'Presence' so users can see the status of other users. Which service must be running on the IM and Presence server?

Accepted Answer

Cisco Presence Engine. The 'Cisco Presence Engine' service is the core service that processes and updates presence states.

Answer

Cisco SIP Proxy

Answer

Cisco XCP Router

Answer

Cisco TFTP

Question 7

When a SIP phone initiates a call, which message does the CUCM send to acknowledge the initial INVITE?

Accepted Answer

100 Trying. A '100 Trying' message is the standard response to indicate that the INVITE has been received and is being processed.

Answer

401 Unauthorized

Answer

180 Ringing

Answer

200 OK

Question 8

Which TWO tasks must be performed when moving a phone from one CUCM cluster to another?

Accepted Answer

Reset the phone. You must change the TFTP server address and potentially reset the device to clear the old registration data.

Answer

Enable SIP OPTIONS

Answer

Update the CTI Manager

Answer

Delete the phone from AD

Question 9

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 10

You are migrating to a new SIP provider. You have a requirement to use 'Early Offer' for all calls on this trunk. Where is this configured?

Accepted Answer

SIP Profile. The SIP Profile assigned to the SIP trunk is where you can toggle Early Offer/Delayed Offer settings.

Answer

SIP Trunk Security Profile

Answer

Device Pool

Answer

Route List

Question 11

When configuring a Device Pool in CUCM, which parameter is responsible for defining the set of codecs used between devices in different regions?

Accepted Answer

Region. The Location and Region settings within a Device Pool define the bandwidth and codec policies between endpoints.

Answer

Calling Search Space

Answer

Date/Time Group

Answer

Location

Question 12

Which THREE types of media resources can be managed by an MRGL?

Accepted Answer

Transcoder. Common media resources include music on hold, conference bridges, and transcoders, all of which are managed via MRGs and MRGLs.

Answer

Cisco Unity Connection.

Answer

SIP Trunk.

Question 13

What is the default behavior of CUCM when a phone is moved to a new site and registers with the local CUCM node, but the Device Pool is not updated?

Accepted Answer

The phone registers but keeps old Region/Location settings.. If the device pool is not updated, the phone will continue to use its original Region and Location settings, potentially causing media issues if it crosses a WAN link.

Answer

The phone refuses to register.

Answer

The phone forces a factory reset.

Answer

The phone defaults to the 'Default' device pool.

Question 14

You have implemented 'Local Route Group' in your dial plan. What is the main advantage of using this instead of static Route Groups?

Accepted Answer

It simplifies the dial plan by removing the need for location-specific route patterns.. Local Route Groups decouple the dial plan from the specific gateway, allowing the same route pattern to route via different local gateways based on the device's Device Pool.

Answer

It forces the use of G.729.

Answer

It requires less CPU on the CUCM.

Answer

It allows faster call setup.

Question 15

You need to ensure that an encrypted call is established between two phones. Which component must be properly configured for 'Mixed Mode' to support secure media (SRTP)?

Accepted Answer

CTL File / ITL File. To support SRTP, the CUCM must be in 'Mixed Mode', which is typically enabled via the 'utils ctl update' or 'utils security set' CLI commands.

Answer

SIP Trunk Security Profile

Answer

Application Dial Rules

Answer

Device Pool Security