Cloud Engineer Technology & Digital Applications 4

Question 1

A cloud engineer needs to query data stored in Amazon S3 using standard SQL without loading it into a database. Which AWS service enables this?

Accepted Answer

Amazon Athena

Answer

Amazon Athena is a serverless interactive query service that lets you run SQL queries directly against data in S3.

Question 2

In cloud security, what does the shared responsibility model state about OS-level patching for an EC2 instance?

Accepted Answer

The customer is responsible for patching the OS on EC2 instances

Answer

For EC2, AWS manages the underlying hypervisor, but the customer is responsible for patching and maintaining the guest OS.

Question 3

A microservices application experiences cascading failures when one downstream service is slow. Which resilience pattern prevents this?

Accepted Answer

Circuit Breaker pattern

Answer

The Circuit Breaker pattern stops sending requests to a failing service after a threshold, allowing it to recover and preventing cascading failures.

Question 4

Which type of cloud load balancer operates at Layer 7 and can route traffic based on URL path or HTTP headers?

Accepted Answer

Application Load Balancer (ALB)

Answer

Application Load Balancers operate at Layer 7 (HTTP/HTTPS) and support content-based routing using host headers, URL paths, and query strings.

Question 5

A team wants to enforce that all S3 buckets in their AWS account never allow public access, regardless of bucket policy. Which AWS feature achieves this at the account level?

Accepted Answer

S3 Block Public Access (account-level)

Answer

S3 Block Public Access settings applied at the account level override any bucket-level policies or ACLs that would grant public access.

Cloud Engineer Practice Test

Cloud Engineer Practice Test

Cloud Engineer Technology & Digital Applications 4