Google Professional Cloud DevOps Engineer Question 99
Select 4Google Cloud PlatformYour organization runs a critical e-commerce platform on Google Cloud. You are tasked with deciding the target Service Level Objective (SLO) for availability. The business team proposes adding an additional 'nine' to the availability (e.g., moving from 99.9% to 99.99%) to improve reliability. However, you must consider the opportunity cost of this decision. What factors should you evaluate to determine if the additional reliability is worth the cost?
- A
The increased cost of infrastructure and operational complexity to achieve the higher availability.
- B
The impact of higher availability on customer satisfaction and potential revenue growth.
- C
The downtime allowed per year at the current and proposed availability targets.
- D
The scalability limits of the platform to meet future traffic demands.
- E
The potential risk of over-engineering the solution and wasting resources.
Show answer and explanation
Correct answers: A, B, C, E
Explanation
When deciding on increasing reliability, it's essential to balance the costs, risks, and benefits. Factors like infrastructure cost, customer impact, downtime differences, and the risk of over-engineering should be considered. Scalability, while critical for growth, is not directly tied to the opportunity cost of reliability and is therefore less relevant in this scenario.
- A. Correct.
Increasing availability often requires additional infrastructure, redundancy, and operational effort. This directly translates to higher costs, which must be weighed against the benefits.
- B. Correct.
Higher availability can improve customer trust, satisfaction, and revenue, especially for critical services like e-commerce. This business impact must be considered.
- C. Correct.
Understanding the downtime allowed under the current and proposed availability levels helps evaluate if the improvement is significant enough to justify the cost.
- D. Incorrect.
While scalability is important, it is not directly related to the opportunity cost of improving reliability unless it impacts availability. This makes it less relevant in this context.
- E. Correct.
Over-engineering to achieve higher availability can waste resources without delivering proportional value. It's essential to avoid unnecessary complexity or expense.