MS-721 Practice Question 3320
Exam: MS-721
Domain: Plan and design collaboration communications systems
Difficulty: hard
What is the function of a Certified Direct Routing Survivable Branch Appliance (SBA)?
Answer Options
A
Provides local PSTN calling survivability during WAN cloud outages
B
Formats local domain controller hard drives during emergencies
C
Compresses video files uploaded to OneDrive
D
Generates monthly billing invoices for executive staff
Correct Answer
A: Provides local PSTN calling survivability during WAN cloud outages
Explanation
An SBA is software embedded in a certified SBC that allows Teams users at a branch site to place and receive PSTN calls even during a wide area network (WAN) outage disconnecting them from Microsoft 365.