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MS-721: What’s the Best Solution to Reduce Network Traffic for Large Microsoft Teams Events?

Discover why using Teams live events with an enterprise content delivery network (eCDN) optimizes bandwidth and ensures high-quality streaming for 1,000+ participants.

Question

You have a Microsoft Teams deployment.

Your company is planning a corporate, virtual meeting for 1,000 participants. The event will include live presentations and videos that can significantly affect the internal network and internet bandwidth.

You need to recommend a solution to reduce network traffic for the event and ensure quality audio and video for all the participants.

What should you recommend?

Select only one answer.

A. Configure a network roaming policy.
B. Enable Quality of Service (QoS) markers.
C. Use a Teams live event with an enterprise content delivery network (eCDN).
D. Use a webinar for the presentation.

Answer

C. Use a Teams live event with an enterprise content delivery network (eCDN).

Explanation

The answer is eCDN with a live event. The question asks how to minimize traffic on the local network. The only solution is an eCDN solution that delivers a single stream to participant’s workstations.

Why This Solution Works

Microsoft Teams live events paired with an eCDN address network congestion and bandwidth limitations during large-scale broadcasts by:

Reducing Bandwidth Consumption

  • eCDN uses peer-to-peer (P2P) technology to distribute video streams within the corporate network, minimizing reliance on external internet bandwidth. For example, a 2 Mbps stream with 1,000 viewers would require 2 Gbps without eCDN, but with 90% efficiency, bandwidth drops to 200 Mbps.
  • Mesh networks automatically scale as viewers join, sharing content locally to reduce redundant data requests.

Ensuring High-Quality Streaming

  • Microsoft eCDN supports adaptive bitrate streaming (720p maximum resolution), dynamically adjusting video quality to prevent buffering. Advanced analytics monitor network performance and viewer experience in real time.

Scalability and Compliance

  • Teams live events support up to 20,000 authenticated attendees, far exceeding standard meeting limits.
  • eCDN integrates with Microsoft’s compliance framework, ensuring secure content delivery to authorized users only.

Why Other Options Fail

A. Network roaming policy: Optimizes device connectivity but does nothing to reduce bandwidth saturation from video streaming.

B. QoS markers: Prioritizes network traffic but doesn’t lower total bandwidth consumption.

D. Webinars: Limited to 1,000 interactive attendees and lacks native eCDN integration for traffic optimization.

Implementation Steps

  1. Enable Microsoft eCDN in Teams Admin Center under Meetings > Live Event Settings.
  2. Validate network configurations (e.g., allow HTTPS/UDP traffic to Microsoft eCDN domains).
  3. Conduct pre-event testing with subnet mapping and silent traffic simulations.

By combining Teams live events with eCDN, organizations eliminate network bottlenecks while delivering seamless, high-quality broadcasts to thousands of participants.

Microsoft 365 Certified Collaboration Communications Systems Engineer Associate MS-721 certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the Microsoft Collaboration Communications Systems Engineer MS-721 exam and earn Microsoft 365 Certified Collaboration Communications Systems Engineer Associate certification.