Which four actions should you perform in sequence?

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Testlet 1

Case Study

This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case.

However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.

To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.

At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next section of the exam. After you begin a new section, you cannot return to this section.

To start the case study

To display the first question on this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the

question button to return to the question.

Overview

General Overview

Contoso, Ltd., is a manufacturing company that has 4,000 employees. The company has a sales department, a marketing department, a research department, and a human resources department.

Physical Locations

The company has four offices.

The offices are configured as shown in the following table:

The New York office contains the main data center. Communications for all of the offices is routed through the New York office.

All telephone calls from the Los Angeles office and the Miami office are routed through a public switched telephone network (PSTN) gateway in the New York office.

All offices connect to each other by using a wide area network (WAN) link. Each office connects directly to the Internet.

Existing Environment

Active Directory Environment

The company has an Active Directory Domain Services (AD DS) forest named contoso.com. The forest contains a single domain. All domain controllers run Windows Server 2008 R2.

Each office contains two domain controllers. Each office is configured as an AD DS site.

Each office contains DHCP servers that run on 32-bit servers.

Skype for Business Server Environment

The company has nine servers.

The servers are configured as shown in the following table:

The company uses a SIP domain of contoso.com.

The voice infrastructure is configured as shown in the following table:

All users are enabled for Enterprise Voice.

The company also contains the Edge environment configured as shown in the following table:

The Miami office has a dial plan.

The dial plan is configured as shown in the following table:

The Skype for Business server configuration has five routes. Location-based routing is not configured.

The routes are configured as shown in the following table:

The PSTN usage for the users in the Los Angeles Office is configured as shown in the following table:

Problem Statements

The company identifies the following issues with the current infrastructure:

– Los Angeles users report that the audio quality during calls to the New York office is poor and that the calls often disconnect.

– Users in the Miami office report that when their WAN link fails, they cannot establish calls to the PSTN.

– The Miami users report that they cannot call the Los Angeles users by using a five-digit internal phone number.

Requirements

Planned Changes

The company plans to implement the following changes:

– Provide voice resiliency in all of the offices if a WAN link fails.

– Implement Call Park.

– Implement an unassigned number range that has a voice announcement.

– Add an additional auto attendant.

– Implement a gateway in the Los Angeles Office that uses the local PSTN.

– Migrate several users to Skype for Business Online. The users will use instant messaging (IM) with Skype for Business users only. Client computers will use automatic configuration and open federation. The migrated users will use a SIP domain of cloud.contoso.com.

– Provide a backup route for each office if a gateway fails.

– Provide each office with access to the local PSTN.

Technical Requirements

The company identifies the following technical requirements:

– Enable five-digit internal dialing that uses the site code and the last four digits of the phone number range.

– Configure the New York gateway as the backup route for the local gateway in each office.

Business Requirements

Changes to the infrastructure must minimize the number of new servers deployed.

DRAG DROP

You need to configure the unassigned numbers range to support the planned changes.

Which four actions should you perform in sequence? To answer, move the four appropriate actions from the list of actions to the answer area and arrange then in the correct order.

Answer:

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