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Technology & Digital Applications Flashcards

7 cards from real Cloud Engineer practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Technology & Digital Applications flashcards as text

  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?

    Answer: Amazon Athena

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

  2. 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.

  3. 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.

  4. 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.

  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?

    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.

  6. 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.

  7. 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.