The **AWS Cloud Practitioner** certification is the ideal entry point for understanding the AWS cloud. It validates overall understanding of the cloud, security, basic architectural concepts, and the billing model.
Answer : Physical security of the data centers.
Under the Shared Responsibility Model, AWS is responsible for the security 'OF' the cloud (global infrastructure, compute, storage, networking), while the customer is responsible for security 'IN' the cloud (data configuration, firewall, access management).
Answer : Amazon RDS (Relational Database Service).
Amazon RDS makes it easy to set up, operate, and scale a relational database in the cloud. It automatically handles security patching, backups, and redundancy.
Answer : Elasticity.
Elasticity is the ability to scale up or down automatically (via Auto Scaling) to meet demand variations, thus avoiding costly under-provisioning or over-provisioning.
Answer : AWS Trusted Advisor.
Trusted Advisor analyzes your AWS environment and provides real-time guidance to follow best practices in five categories: cost optimization, security, fault tolerance, performance, and service limits.
Answer : S3 Glacier Deep Archive.
S3 Glacier Deep Archive is the lowest-cost storage class in Amazon S3, designed for data accessed once or twice a year, with retrieval times ranging from 12 to 48 hours.