{"id":"aws-cloud-practitioner-free","timeLimitSec":540,"questions":[{"id":"awsf-001","section":"tech","q":"Which service distributes incoming application traffic across several EC2 instances?","options":["Elastic Load Balancing","Amazon EBS","AWS Direct Connect","Amazon EC2 Auto Scaling"],"answer":0,"explain":"Elastic Load Balancing spreads traffic over healthy targets. Auto Scaling changes the number of instances but does not route traffic."},{"id":"awsf-002","section":"concepts","q":"Which is a benefit of the AWS Cloud compared with running your own data center?","options":["Pay only for what you use","Owning the physical servers","Large upfront hardware spend","Capacity planned years ahead"],"answer":0,"explain":"The cloud turns upfront capital expense into a variable expense: you pay for the resources you actually use."},{"id":"awsf-003","section":"security","q":"Under the AWS shared responsibility model, which task is the customer's job for Amazon EC2?","options":["Maintaining the hypervisor","Replacing failed data center disks","Patching the guest operating system","Securing the physical hosts"],"answer":2,"explain":"AWS secures the infrastructure (security OF the cloud). On EC2 the customer manages the guest OS, patches and firewall settings (security IN the cloud)."},{"id":"awsf-004","section":"security","q":"An application on EC2 must read files from Amazon S3. What is the most secure way to give it access?","options":["Put access keys in the code","Use the root user's keys","Make the bucket public","Attach an IAM role"],"answer":3,"explain":"An IAM role gives the instance temporary credentials that rotate automatically, so no long-term keys are stored on the server."},{"id":"awsf-005","section":"billing","q":"Which service sends you an alert when your AWS costs exceed an amount you set?","options":["Amazon Inspector","AWS Budgets","AWS Cost Explorer","AWS CloudTrail"],"answer":1,"explain":"AWS Budgets lets you set cost or usage limits and get alerts. Cost Explorer is for viewing and forecasting spend."}]}