300-910 · Question #115
Refer to the exhibit. A portion of the Kubernetes architecture of an application is shown, including the performance limits. What is the minimum number of application pods required when there are 3,00
The correct answer is C. 6. Based on the exhibit's per-pod performance limit for the web tier, 3,000 connections per second requires a minimum of 6 pods to stay within each pod's stated maximum capacity.
Question
Options
- A3
- B5
- C6
- D8
How the community answered
(26 responses)- A4% (1)
- B4% (1)
- C81% (21)
- D12% (3)
Why each option
Based on the exhibit's per-pod performance limit for the web tier, 3,000 connections per second requires a minimum of 6 pods to stay within each pod's stated maximum capacity.
3 pods would only support 1,500 connections per second at the stated per-pod limit, which is insufficient for the 3,000 connections per second requirement.
5 pods would only support 2,500 connections per second, leaving the system 500 connections short of meeting the full demand.
The exhibit shows each web tier pod handles a maximum of 500 connections per second; dividing 3,000 total connections by 500 per pod yields exactly 6 pods as the minimum needed to serve the load without exceeding per-pod performance limits.
8 pods would over-provision the web tier beyond what is needed, exceeding the minimum requirement of 6 pods by two additional pods.
Concept tested: Kubernetes pod scaling capacity calculation from performance limits
Source: https://kubernetes.io/docs/concepts/workloads/controllers/horizontalpodautoscaler/
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