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Google Professional Cloud DevOps Engineer Exam - Topic 12 Question 16 Discussion

Actual exam question for Google's Professional Cloud DevOps Engineer exam
Question #: 16
Topic #: 12
[All Professional Cloud DevOps Engineer Questions]

You support a high-traffic web application with a microservice architecture. The home page of the application displays multiple widgets containing content such as the current weather, stock prices, and news headlines. The main serving thread makes a call to a dedicated microservice for each widget and then lays out the homepage for the user. The microservices occasionally fail; when that happens, the serving thread serves the homepage with some missing content. Users of the application are unhappy if this degraded mode occurs too frequently, but they would rather have some content served instead of no content at all. You want to set a Service Level Objective (SLO) to ensure that the user experience does not degrade too much. What Service Level Indicator {SLI) should you use to measure this?

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Suggested Answer: D

by Stephen at May 07, 2022, 05:37 PM

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Yan
4 months ago
Not sure if serving degraded content is a good idea at all.
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Carmela
4 months ago
Wait, why would we care about freshness when services fail?
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Linwood
4 months ago
I think availability SLI could be important too, though.
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Keena
4 months ago
Totally agree, we need to measure user experience directly!
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Candra
5 months ago
A quality SLI seems like the best choice here.
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Evelynn
5 months ago
I’m leaning towards the quality SLI too, but I wonder if the latency SLI could also impact how users perceive the homepage loading.
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Sheldon
5 months ago
I practiced a similar question about measuring performance, and I think the freshness SLI might not be the best fit since it focuses on updates rather than user experience.
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Lisbeth
5 months ago
I'm not entirely sure, but I feel like the availability SLI could also be relevant since it measures the health of the microservices.
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Lucy
5 months ago
I remember discussing SLIs in class, and I think the quality SLI makes sense here since it directly relates to user experience.
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Phyliss
5 months ago
Hmm, I'm a bit confused on the difference between "Information" logging level and other levels like "Error" or "Debug". I'll need to review the documentation.
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Valentine
5 months ago
Okay, let me think this through step-by-step. I need to calculate the total cash inflows over 3 years for each program, then divide by the initial cost to get the ROI.
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Vivan
5 months ago
I'm a bit unsure about this one. I'll need to review the Azure services and their capabilities to make the best decision for the approval process.
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