CNX-001 · Question #49
A SaaS company's new service currently is being provided through four servers. The company's end users are having connection issues, which is affecting about 25% of the connections. Which of the…
The correct answer is A. The service is using round-robin load balancing through a DNS server with one server down. With simple round-robin DNS distributing 25% of requests to each of four servers, a single server outage directly causes exactly 25% of connections to fail, matching the reported impact.
Question
A SaaS company's new service currently is being provided through four servers. The company's end users are having connection issues, which is affecting about 25% of the connections. Which of the following is most likely the root cause of this issue?
Options
- AThe service is using round-robin load balancing through a DNS server with one server down.
- BThe service is using weighted load balancing with 40% of the traffic on server A, 20% on server B,
- CThe service is using a least-connection load-balancing method with one server down.
- DLoad balancing is configured with a health check in front of these servers, and one of these
How the community answered
(24 responses)- A58% (14)
- B4% (1)
- C25% (6)
- D13% (3)
Explanation
With simple round-robin DNS distributing 25% of requests to each of four servers, a single server outage directly causes exactly 25% of connections to fail, matching the reported impact.
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