AWS Cloud Architecture & Infrastructure 3

Question 1

Which AWS Well-Architected Framework pillar focuses on the ability to recover from failures and meet business demands?

Accepted Answer

Reliability

Answer

The Reliability pillar covers the ability of a workload to recover from failures and meet demand.

Question 2

An EC2 instance in a private subnet needs outbound internet access for updates without being reachable from the internet. What should you use?

Accepted Answer

NAT Gateway

Answer

A NAT Gateway allows instances in a private subnet to initiate outbound internet traffic while remaining unreachable inbound.

Question 3

Which service lets you access AWS services like S3 privately from your VPC without traversing the public internet?

Accepted Answer

VPC Endpoint

Answer

VPC Endpoints enable private connectivity to supported AWS services without an internet gateway or NAT.

Question 4

What is the recommended way to achieve high availability for an Amazon RDS database?

Accepted Answer

Deploy a Multi-AZ configuration

Answer

RDS Multi-AZ maintains a synchronous standby in a different Availability Zone for automatic failover.

Question 5

Which compute pricing model offers the deepest discount but can be interrupted by AWS with short notice?

Accepted Answer

Spot Instances

Answer

Spot Instances use spare capacity at steep discounts but can be reclaimed by AWS with a two-minute warning.

AWS Practice Test