AWS AWS Compute Services 5

Question 1

What is the purpose of an EC2 Placement Group using the 'Partition' strategy?

Accepted Answer

Spread instances across logical partitions so groups never share underlying hardware

Answer

Partition placement groups divide instances into logical partitions, each on separate hardware, reducing the risk of correlated hardware failures for distributed systems like HDFS or Kafka.

Question 2

Which Lambda feature enables you to run two versions of a function simultaneously and gradually shift traffic between them to test a new deployment?

Accepted Answer

Lambda Aliases with weighted routing

Answer

Lambda Aliases support weighted routing, allowing you to split traffic between two function versions for canary or blue/green deployments.

Question 3

A company needs dedicated physical EC2 servers for compliance reasons but wants AWS to manage the server capacity. Which option should they choose?

Accepted Answer

Dedicated Hosts

Answer

Dedicated Hosts provide physical servers dedicated to your use, giving visibility into sockets and cores for license compliance, with AWS managing the infrastructure.

Question 4

What does 'Provisioned Concurrency' do for AWS Lambda?

Accepted Answer

Pre-initializes execution environments to eliminate cold starts

Answer

Provisioned Concurrency keeps a specified number of Lambda execution environments initialized and ready to respond instantly, eliminating cold start latency.

Question 5

Which EC2 feature allows you to pause and resume an instance, preserving the in-memory state (RAM contents) to disk?

Accepted Answer

Hibernate

Answer

EC2 Hibernate saves the instance's RAM contents to the EBS root volume so the instance can resume exactly where it left off, including running processes.

AWS Practice Test

AWS Practice Test

AWS AWS Compute Services 5