MS-721 Question #202: Real Exam Question with Answer & Explanation

Question

You have a Microsoft Teams Phone deployment. You are deploying a new remote site. You have a Session Border Controller (SBC) that has an E1/T1 Primary Rate Interlace (PRI) deployed to the remote site. You plan to deploy a Survivable Branch Appliance (SBA) to ensure PSTN connectivity. Which type of endpoints are supported by the SBA?

Options

• Aaudio conferencing in Microsoft Teams
• Bauto attendants in Microsoft Teams
• Cstandard SIP devices registered to the SBC
• DMicrosoft Teams Windows desktops

Explanation

{"question_number": 6, "question": "Which type of endpoints are supported by the Survivable Branch Appliance (SBA)?", "correct_answer": "D. Microsoft Teams Windows desktops", "explanation": "A Survivable Branch Appliance (SBA) provides PSTN call survivability for Microsoft Teams clients when the WAN connection to Microsoft 365 is lost. It supports Microsoft Teams native clients - including Windows desktop clients and mobile clients - allowing users to make and receive PSTN calls during an outage. The SBA does NOT support standard SIP devices registered directly to the SBC (Option C), audio conferencing features (Option A), or auto attendants (Option B), as those services require a live connection to the Microsoft 365 cloud.", "generated_by": "claude-sonnet", "llm_judge_score": 4}

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