5 Comprehensive Practice and Review Free Online FlashCards

What cloud benefit lets resources scale up and down as demand changes?

Elasticity is the ability to adjust resources as demand changes, scaling up during a surge and down afterward.

Which migration approach moves an application with minimal changes?

Rehosting moves an application with few or no changes. It is often called “lift and shift.”

What are the six AWS Well-Architected Framework pillars?

The six pillars are operational excellence, security, reliability, performance efficiency, cost optimization, and sustainability.

How does the AWS shared responsibility model divide security?

AWS is responsible for security of the cloud; customers are responsible for security in the cloud. Exact duties depend on the service.

Who patches the guest operating system on an Amazon EC2 instance?

The customer patches the guest operating system on an EC2 instance because the customer manages that operating system.

What does the security principle of least privilege require?

Least privilege means granting only the permissions needed for a task, preferably through an appropriate role.

Which AWS service records account activity such as API calls?

AWS CloudTrail records account activity, including API events, helping identify who performed an action and when.

Which AWS service provides object storage for images and documents?

Amazon S3 is durable object storage suited to images and documents retrieved over the internet.

Which AWS service provides managed relational databases?

Amazon RDS is a managed relational database service that reduces the need to manage database host infrastructure.

How can multiple Availability Zones help an application within a Region?

Availability Zones are distinct locations within a Region. Deploying across multiple Zones can help an application withstand a Zone failure.

Which AWS service runs event-driven code without server management?

AWS Lambda runs code in response to events without requiring customers to provision or manage servers.

Which tool analyzes historical AWS spending and cost trends?

AWS Cost Explorer analyzes historical costs and usage to help identify trends and view forecasts.