Technology & Digital Applications Flashcards
7 cards from real Cloud Engineer practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Technology & Digital Applications flashcards as text
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?
Answer: Amazon Athena
Amazon Athena is a serverless interactive query service that lets you run SQL queries directly against data in S3.
In cloud security, what does the shared responsibility model state about OS-level patching for an EC2 instance?
Answer: The customer is responsible for patching the OS on EC2 instances
For EC2, AWS manages the underlying hypervisor, but the customer is responsible for patching and maintaining the guest OS.
A microservices application experiences cascading failures when one downstream service is slow. Which resilience pattern prevents this?
Answer: Circuit Breaker pattern
The Circuit Breaker pattern stops sending requests to a failing service after a threshold, allowing it to recover and preventing cascading failures.
Which type of cloud load balancer operates at Layer 7 and can route traffic based on URL path or HTTP headers?
Answer: Application Load Balancer (ALB)
Application Load Balancers operate at Layer 7 (HTTP/HTTPS) and support content-based routing using host headers, URL paths, and query strings.
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?
Answer: S3 Block Public Access (account-level)
S3 Block Public Access settings applied at the account level override any bucket-level policies or ACLs that would grant public access.
What is the primary benefit of using Infrastructure as Code (IaC) over manual cloud console provisioning?
Answer: IaC enables version-controlled, repeatable, and auditable infrastructure deployments
IaC stores infrastructure definitions in version control, enabling consistent, repeatable deployments and a full audit trail of changes.
A cloud engineer configures an API Gateway with a throttling limit of 1,000 requests per second. A spike sends 5,000 requests per second. What happens to the excess requests?
Answer: They receive a 429 Too Many Requests response
API Gateway returns HTTP 429 Too Many Requests to clients that exceed the configured throttle limit, protecting backend services from overload.