Welding Procedures & Techniques 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 Welding Procedures & Techniques flashcards as text
A company needs its web application to survive the failure of an entire AWS Availability Zone. Which architecture achieves this?
Answer: Distribute EC2 instances across multiple AZs behind an ALB
Distributing instances across multiple AZs behind an ALB ensures traffic is routed to healthy AZs if one fails.
Which AWS service provides a managed NoSQL database with built-in multi-AZ replication and single-digit millisecond latency?
Answer: Amazon DynamoDB
DynamoDB is a fully managed NoSQL service with automatic multi-AZ replication and consistent low latency.
A solutions architect wants to decouple a producer microservice from a consumer microservice to handle burst traffic. What is the best approach?
Answer: Place an Amazon SQS queue between the producer and consumer
SQS buffers messages so the consumer can process at its own pace, decoupling the two services.
An architect must ensure that data stored in Amazon S3 is encrypted at rest using customer-managed keys. Which option satisfies this requirement?
Answer: AWS KMS Customer Managed Keys (SSE-KMS)
SSE-KMS uses CMKs in AWS KMS, giving the customer full control over key management and auditing.
Which AWS storage class is most cost-effective for data that is accessed once a quarter and must be retrieved within minutes?
Answer: S3 Standard-IA
S3 Standard-IA is designed for infrequently accessed data that still needs millisecond retrieval.
A company wants to replicate an RDS MySQL database to a different AWS Region for disaster recovery. Which feature should they use?
Answer: RDS Cross-Region Read Replica
RDS Cross-Region Read Replicas asynchronously copy data to another region, enabling DR failover.
What is the purpose of an AWS Transit Gateway?
Answer: To act as a central hub connecting multiple VPCs and on-premises networks
Transit Gateway is a scalable network hub that simplifies connectivity between many VPCs and on-premises locations.