Cloud Architecture & Infrastructure Flashcards
7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Cloud Architecture & Infrastructure flashcards as text
Which AWS Well-Architected Framework pillar focuses on the ability to recover from failures and meet business demands?
Answer: Reliability
The Reliability pillar covers the ability of a workload to recover from failures and meet demand.
An EC2 instance in a private subnet needs outbound internet access for updates without being reachable from the internet. What should you use?
Answer: NAT Gateway
A NAT Gateway allows instances in a private subnet to initiate outbound internet traffic while remaining unreachable inbound.
Which service lets you access AWS services like S3 privately from your VPC without traversing the public internet?
Answer: VPC Endpoint
VPC Endpoints enable private connectivity to supported AWS services without an internet gateway or NAT.
What is the recommended way to achieve high availability for an Amazon RDS database?
Answer: Deploy a Multi-AZ configuration
RDS Multi-AZ maintains a synchronous standby in a different Availability Zone for automatic failover.
Which compute pricing model offers the deepest discount but can be interrupted by AWS with short notice?
Answer: Spot Instances
Spot Instances use spare capacity at steep discounts but can be reclaimed by AWS with a two-minute warning.
A workload requires sub-millisecond latency caching in front of a database. Which service fits best?
Answer: Amazon ElastiCache
Amazon ElastiCache provides in-memory caching (Redis/Memcached) for microsecond to sub-millisecond latency.
Which service provides a dedicated private network connection from on-premises to AWS, bypassing the public internet?
Answer: AWS Direct Connect
AWS Direct Connect establishes a dedicated, private physical connection between on-premises and AWS.