Amazon Web Services Flashcards
7 cards from real Architecting on AWS Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Amazon Web Services flashcards as text
A company is designing a data lake on AWS. Which service provides a serverless, interactive query service to analyze data directly in Amazon S3 using standard SQL?
Answer: Amazon Athena
Amazon Athena is a serverless query service that lets you analyze data in S3 using standard SQL without provisioning infrastructure.
Which EC2 purchasing option provides the largest discount (up to 90%) compared to On-Demand pricing for fault-tolerant, flexible workloads?
Answer: Spot Instances
Spot Instances offer up to 90% discount over On-Demand but can be interrupted with a two-minute warning when capacity is reclaimed.
An application needs to route traffic to different backend services based on the URL path (e.g., /api vs /images). Which load balancer type supports this?
Answer: Application Load Balancer
Application Load Balancers support content-based routing including path-based routing rules to different target groups.
Which AWS service enables you to centrally manage and enforce compliance rules across multiple AWS accounts by evaluating resource configurations?
Answer: AWS Config
AWS Config continuously monitors and records resource configurations and evaluates them against desired compliance rules.
A solutions architect needs to replicate data asynchronously to a secondary AWS Region for disaster recovery with minimal configuration. Which S3 feature achieves this?
Answer: S3 Cross-Region Replication
S3 Cross-Region Replication automatically and asynchronously copies objects from a source bucket to a destination bucket in another Region.
Which AWS database service is best suited for a social network application requiring flexible schema, horizontal scaling, and single-digit millisecond latency at any scale?
Answer: Amazon DynamoDB
DynamoDB is a fully managed NoSQL database that delivers consistent single-digit millisecond performance and scales horizontally to any workload.
What mechanism does AWS use to protect against accidental deletion of objects in S3 when versioning is enabled?
Answer: Inserting a delete marker instead of removing the object
When versioning is enabled, a DELETE request places a delete marker on the object, preserving all previous versions.