PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Question #101: Real Exam Question with Answer & Explanation

Question

You are the Operations Lead for an ongoing incident with one of your services. The service usually runs at around 70% capacity. You notice that one node is returning 5xx errors for all requests. There has also been a noticeable increase in support cases from customers. You need to remove the offending node from the load balancer pool so that you can isolate and investigate the node. You want to follow Google-recommended practices to manage the incident and reduce the impact on users. What should you do?

Options

• A1. Communicate your intent to the incident team.
• B1. Communicate your intent to the incident team.
• C1. Drain traffic from the unhealthy node and remove the node from service.
• D1. Drain traffic from the unhealthy node and remove the old node from service.

Explanation

During an incident, the initial step to isolate an unhealthy node and reduce user impact is to communicate the intended action to the incident team.

Common mistakes.

• B. This choice is identical to A, implying A is the specific correct first step among the options.
• C. Draining traffic is a crucial technical step, but it should typically follow communication to the broader incident team to ensure coordination and prevent unforeseen side effects.
• D. Draining traffic is a crucial technical step, but it should typically follow communication to the broader incident team to ensure coordination and prevent unforeseen side effects.

Concept tested. Incident Management Communication

Reference. https://sre.google/sre-book/managing-incidents/

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