For a globally distributed ECS application, which performance factor is crucial to monitor?

Question

Options

• ALocal workstation CPU usage
• BGlobal Content Delivery Network (CDN) effectiveness
• CThe office Internet connection speed
• DThe screen resolution of end-users

• A
  3% (1)
• B
  83% (24)
• C
  10% (3)
• D
  3% (1)

Explanation

For a globally distributed ECS application, CDN effectiveness (B) is the critical performance factor because a CDN caches and serves content from edge locations closest to users worldwide, directly reducing latency and improving load times across different geographic regions. The other options are wrong because local workstation CPU (A) and office Internet speed (C) are irrelevant infrastructure concerns that have no bearing on how your distributed application performs for end-users globally, and screen resolution (D) is a client-side display setting that doesn't affect application performance at all. Memory tip: Think "global app = global delivery" - whenever a question pairs "distributed/global" with performance, CDN is almost always the answer because it's the mechanism that bridges geographic distance between your servers and your users.

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