Cloud Engineer Technology & Digital Applications 2

Question 1

A cloud engineer needs to process streaming IoT sensor data with sub-second latency. Which managed service is best suited for this use case on AWS?

Accepted Answer

Amazon Kinesis Data Streams

Answer

Amazon Kinesis Data Streams is purpose-built for real-time streaming data ingestion and processing with millisecond latency.

Question 2

Which cloud networking concept allows private connectivity between a VPC and on-premises infrastructure without traversing the public internet?

Accepted Answer

AWS Direct Connect

Answer

AWS Direct Connect establishes a dedicated private network connection from on-premises to AWS, bypassing the public internet.

Question 3

A team deploys a containerized microservice and wants Kubernetes to automatically add more pod replicas when CPU usage exceeds 70%. Which object should they configure?

Accepted Answer

HorizontalPodAutoscaler

Answer

HorizontalPodAutoscaler automatically scales the number of pod replicas based on observed CPU or custom metrics.

Question 4

In a multi-cloud strategy, what is the PRIMARY purpose of using an abstraction layer like Terraform?

Accepted Answer

To provide a single IaC language that works across multiple cloud providers

Answer

Terraform's provider model lets engineers define infrastructure using a single HCL language across AWS, GCP, Azure, and other providers.

Question 5

A cloud engineer observes that an application's database queries are slow due to repeated identical lookups. Which solution addresses this with the least refactoring?

Accepted Answer

Adding a caching layer with Redis or Memcached

Answer

An in-memory cache like Redis stores frequently queried results, dramatically reducing repeated database round-trips without changing application logic.

Cloud Engineer Practice Test

Cloud Engineer Practice Test

Cloud Engineer Technology & Digital Applications 2