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Cloud Infrastructure Flashcards

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

Read the first 7 Cloud Infrastructure flashcards as text
  1. In telecom cloud environments, what is the primary purpose of a 'sidecar' container pattern?

    Answer: To augment a main container with auxiliary functions like logging, monitoring, or proxying without modifying it

    The sidecar pattern deploys a helper container alongside the main container in the same pod, injecting cross-cutting concerns without changing the main application.

  2. What does 'FinOps' mean in the context of telecom cloud infrastructure management?

    Answer: A practice combining finance, DevOps, and business to optimize cloud spend and accountability

    FinOps is a cultural and operational framework that brings financial accountability to cloud spending by aligning engineering, finance, and business teams.

  3. Which approach does cloud-native telecom infrastructure use to manage configuration changes without service interruption?

    Answer: Blue-green deployments

    Blue-green deployments maintain two identical environments and switch traffic instantly between them, enabling zero-downtime configuration or software updates.

  4. In a telecom operator's cloud architecture, what is the function of an API Gateway?

    Answer: To act as a single entry point that handles routing, authentication, rate limiting, and transformation for backend services

    An API Gateway provides a unified front door for microservices, centralizing cross-cutting concerns like authentication, throttling, and request routing.

  5. What is 'serverless computing' and how can telecom operators benefit from it?

    Answer: An execution model where cloud provider manages infrastructure and operators pay only for actual function execution time

    Serverless (e.g., AWS Lambda) abstracts server management entirely, letting telcos run event-driven code and pay only per execution, reducing idle capacity costs.

  6. Which cloud observability pillar provides the ability to trace a single customer request as it flows through multiple microservices in a telecom platform?

    Answer: Distributed tracing

    Distributed tracing (e.g., Jaeger, Zipkin) propagates a unique trace ID across all microservices, enabling end-to-end visibility of a single request's journey.

  7. A telecom operator is designing a disaster recovery strategy with an RTO of 15 minutes and an RPO of 5 minutes. Which cloud DR pattern best meets these requirements?

    Answer: Warm standby

    Warm standby keeps a scaled-down but fully functional replica running in another region, enabling fast failover within minutes to meet tight RTO/RPO targets.