AWS Certified Developer - Associate Questions and Answers Solved Correctly

What is a policy and what can it be attached to? - A policy is a document that defines one (or more) permissions. A policy can be assigned to a user, group or role. GP2 performance profile (IOPS) - Ratio of 3 IOPS per GB with up to 10,000 IOPS and the ability to burst up to 3000 IOPS for extended periods of time for volumes at 3334 GB and above. IO1 performance profile (provisioned IOPS) - Designed for I/O intensive applications such as large relational or NoSQL databases Use if you need 10,000 IOPS Can provision up to 20,000 IOPS per volume What are the magnetic EBS types? - Throughput Optimized (ST1) -Big Data / Data warehouses -Cannot be boot volume Cold HDD (SC1) -Lowest cost for infreq accessed workloads -Cannot be boot volume Magnetic (Standard) -Lowest cost per GB of all EBS types that is bootable Four different EC2 pricing models - On Demand Reserved SPOTDedicated Hosts How are you billed if a SPOT instances is terminated? - If a SPOT instance is terminated by AWS, you will not be charged for a partial hour of usage. If you terminate the instance yourself, you will be charged for the complete hour in which the instance ran