AWS MODULE 6 PART 2

Which EC2 pricing model is most cost-effective for predictable workloads?

• On-Demand
• Reserved Instances
• Spot Instances
• Savings Plan

Answer explanation

Reserved Instances are ideal for predictable workloads with significant cost savings.

What does EC2 Auto Scaling help with?

• Scaling database size
• Scaling compute capacity
• Scaling network bandwidth
• Scaling storage size

Answer explanation

EC2 Auto Scaling adjusts compute capacity automatically based on demand.

What is a Spot Instance in EC2?

• Reserved capacity
• Pay-as-you-go pricing
• Capacity offered at a discount
• Always-on instances

Answer explanation

Spot Instances offer spare capacity at a lower cost but can be interrupted.

Which tool helps right-size EC2 instances?

• Trusted Advisor
• CloudFormation
• AWS Inspector
• Systems Manager

Answer explanation

Trusted Advisor provides recommendations to optimize cost and performance.

What is the purpose of AWS Cost Explorer?

• Predict costs
• Configure services
• Optimize latency
• Manage databases

Answer explanation

AWS Cost Explorer helps analyze and forecast AWS costs.

Which container orchestration service is AWS managed?

• Kubernetes
• Amazon ECS
• Docker Swarm
• Mesos

Answer explanation

Amazon ECS is AWS's managed container orchestration service.

What is AWS Fargate used for?

• Serverless compute for containers
• Database management
• Load balancing
• Storing logs

Answer explanation

AWS Fargate provides serverless compute for containerized applications.

Which of the following is not a container service in AWS?

• Amazon ECS
• Amazon EKS
• AWS Lambda
• AWS Fargate

Answer explanation

AWS Lambda is for serverless functions, not containers.

What is a key benefit of AWS Lambda?

• Auto-scaling
• Persistent storage
• Network acceleration
• Virtual servers

Answer explanation

AWS Lambda automatically scales based on demand.

How are AWS Lambda charges calculated?

• By CPU usage
• By instance size
• By duration and requests
• By fixed cost

Answer explanation

AWS Lambda charges are based on execution duration and number of requests.