Architecting On AWS Certification 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 Architecting On AWS Certification flashcards as text
A company wants to deploy a multi-tier web application with automatic scaling. Which AWS service combination provides the BEST approach for the web and application tiers?
Answer: Elastic Load Balancing with Auto Scaling groups and RDS Multi-AZ
ELB with Auto Scaling groups distributes traffic and scales capacity automatically, while RDS Multi-AZ provides database high availability.
Which S3 storage class is MOST cost-effective for data that is accessed once a month and must be retrieved within minutes?
Answer: S3 Standard-IA
S3 Standard-IA is designed for infrequently accessed data that still requires rapid retrieval, offering lower storage costs than Standard.
A solutions architect needs to ensure that an application can tolerate an Availability Zone failure. What is the MINIMUM number of AZs the architecture should span?
Answer: 2
Spanning at least 2 AZs ensures the application remains available if one AZ fails, satisfying basic high availability requirements.
Which AWS service enables you to run containerized applications without managing the underlying EC2 instances?
Answer: AWS Fargate
AWS Fargate is a serverless compute engine for containers that removes the need to provision or manage EC2 instances.
A company requires that all data stored in S3 be encrypted at rest using keys they fully control. Which option satisfies this requirement?
Answer: SSE-C (customer-provided keys)
SSE-C allows customers to provide and manage their own encryption keys, giving them full control outside of AWS Key Management Service.
What is the primary benefit of using an Amazon SQS queue between an application tier and a processing tier?
Answer: It decouples components so each tier can scale independently
SQS decouples producers from consumers, allowing each tier to scale independently and absorb traffic spikes without dropping requests.
A workload needs a relational database that scales read capacity automatically and is compatible with MySQL. Which AWS service is the BEST fit?
Answer: Amazon Aurora with Auto Scaling read replicas
Amazon Aurora Auto Scaling automatically adds or removes Aurora Replicas in response to read traffic changes while remaining MySQL-compatible.