Examtopics

AWS Certified Machine Learning - Specialty

89
91

Topic 1 Question 90
A Machine Learning Specialist is planning to create a long-running Amazon EMR cluster. The EMR cluster will have 1 master node, 10 core nodes, and 20 task nodes. To save on costs, the Specialist will use Spot Instances in the EMR cluster. Which nodes should the Specialist launch on Spot Instances?
- Master node
- Any of the core nodes
- Any of the task nodes
- Both core and task nodes
ユーザの投票
コメント(12)
- Answer is C. https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-instances-guidelines.html
  
  👍 23
  joep212021/10/10
- C is the correct answer. "Long-Running Clusters and Data Warehouses If you are running a persistent Amazon EMR cluster that has a predictable variation in computational capacity, such as a data warehouse, you can handle peak demand at lower cost with Spot Instances. You can launch your master and core instance groups as On-Demand Instances to handle the normal capacity and launch task instance groups as Spot Instances to handle your peak load requirements."
  
  👍 10
  SophieSu2021/10/17
- Answer: C. https://aws.amazon.com/getting-started/hands-on/optimize-amazon-emr-clusters-with-ec2-spot/ Amazon recommends using On-Demand instances for Master and Core nodes unless you are launching highly ephemeral workloads.
  
  👍 5
  benson20212021/10/24
シャッフルモード

89
91