Exam Associate Cloud Engineer topic 1 question 252 discussion

Correct answer is D.

D is the right answer here. Spot Vms are fault-tolerant.

The correct answer is D. Create a cluster with both a Spot VM node pool and a node pool by using standard VMs. Deploy the critical deployments on the node pool by using standard VMs and the fault-tolerant deployments on the Spot VM node pool. Here’s why: Spot VMs are cost-effective but can be preempted at any time, making them suitable for fault-tolerant parts of the application that can afford downtime. Standard VMs, while more expensive, provide consistent availability and are ideal for critical parts of the application that must always be available. By creating a cluster with both types of node pools, you can optimize for cost while ensuring the availability of critical application components.

Spot VM Node Pool for Fault-Tolerant Parts: Spot VMs in GKE are cost-effective but can be preempted (terminated) by Google Cloud with little notice if their resources are needed elsewhere. They are suitable for workloads that can handle interruptions, like the fault-tolerant parts of your application. Standard VM Node Pool for Critical Parts: Standard VMs offer more reliability and are not subject to preemption like Spot VMs. Using a standard VM node pool for the critical parts of your application ensures they remain available and are not disrupted by potential preemptions.

Ans is D

Per ChatGPT, Option C aligns with the requirements of optimizing cost, ensuring fault tolerance for certain parts of the application, and maintaining high availability for critical parts by using a combination of Spot VM node pools and standard VM node pools in the same GKE cluster.

D. Create a cluster with both a Spot VM node pool and a nods pool by using standard VMs. Deploy the critical deployments on the node pool by using standard VMs and the fault-tolerant deployments on the Spot VM node pool.