MS-720 Question #40: Real Exam Question with Answer & Explanation

Question

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. Your company uses Microsoft Teams Calling Plans. The company acquires a small development team. Currently, users on the team have their own direct inward dial (DID) numbers that have PSTN capabilities. You migrate the users to Teams. You need to ensure that the users have phone numbers. Solution: You run the New-CsHybridTelephoneNumber cmdlet. Does this meet the goal?

Options

• AYes
• BNo

Explanation

New-CsHybridTelephoneNumber is designed for Skype for Business hybrid environments, where phone numbers need to be made available in the on-premises Active Directory for hybrid users - it is not applicable to a pure Microsoft Teams Calling Plans deployment. Since the company is using Teams Calling Plans (a cloud-only PSTN solution), the correct approach is to acquire and assign numbers through the Teams Admin Center or use Set-CsPhoneNumberAssignment to assign numbers to users.

There is no "distractor" in the traditional sense here since the question is binary (Yes/No), but the wrong choice (A - Yes) fails because it conflates hybrid telephony tooling with Calling Plans tooling - two distinct architectures that use different cmdlets and workflows.

Memory tip: Think of "Hybrid" in the cmdlet name as a red flag - if the scenario mentions Teams Calling Plans (cloud-only), any *Hybrid* cmdlet is almost certainly wrong. Calling Plans = cloud numbers managed in the Teams Admin Center or via Set-CsPhoneNumberAssignment, not hybrid infrastructure cmdlets.

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