MS-700 Configure and Manage a Teams Environment Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✓

  UDP 3478 through 3481

  Why this is correct

  This is the primary range of UDP ports used by the Microsoft Teams client for media traffic (audio, video, and sharing). Ensuring these ports are open to the Teams service IP addresses is a fundamental requirement for achieving high-quality, real-time communication without the performance penalties of TCP-based transport.

• ✗

  UDP 1024 through 5000

  Why it's wrong here

  This is a very broad range and is not the specific set of ports required for Teams media. While it might include the necessary ports, opening such a wide range unnecessarily increases the attack surface of the network and does not follow the principle of least privilege for firewall configuration.

• ✗

  UDP 80 and 443

  Why it's wrong here

  While TCP 443 is used for signaling and as a fallback for media, UDP 80 and 443 are not standard ports for Teams real-time media traffic. Using standard web ports for media would not provide the optimized, low-latency experience that the dedicated media port ranges are designed to deliver to the client.

• ✗

  UDP 50000 through 50059

  Why it's wrong here

  This range was commonly used in older on-premises Skype for Business deployments for media. While familiar to veteran administrators, Microsoft Teams uses the 3478-3481 range for its cloud-native architecture, and using the old Skype ranges would not facilitate correct connectivity for the modern Teams service.