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Cloud Architecture & Deployment Principles Flashcards

7 cards from real CLF-C02 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 Cloud Architecture & Deployment Principles flashcards as text
  1. A company is migrating from a single large server to the cloud and wants to handle growing traffic. Which scaling strategy adds more instances rather than upgrading existing ones?

    Answer: Horizontal scaling (scaling out)

    Horizontal scaling adds more instances to distribute load, while vertical scaling increases the size/power of existing instances.

  2. Which AWS architecture concept uses separate sets of servers to host blue (current) and green (new) versions of an application to enable zero-downtime deployments?

    Answer: Blue/green deployment

    Blue/green deployment maintains two identical environments and shifts traffic from blue (current) to green (new) for zero-downtime releases.

  3. What is the primary purpose of an Amazon SQS queue in a cloud architecture?

    Answer: Decoupling application components by buffering messages

    Amazon SQS decouples application components by acting as a message buffer, allowing producers and consumers to operate independently.

  4. According to cloud architecture best practices, which approach should be used to handle planned or unplanned downtime of a database?

    Answer: Use Multi-AZ deployment for automatic failover

    Multi-AZ deployments automatically maintain a standby replica in another AZ and failover within minutes if the primary instance fails.

  5. A company wants to follow the AWS Well-Architected Framework principle of 'implement observability.' Which combination of services best supports this?

    Answer: Amazon CloudWatch and AWS CloudTrail

    CloudWatch provides metrics and logging while CloudTrail records API calls, together providing comprehensive observability into system health and activity.

  6. Which cloud deployment benefit allows a company to stop paying for resources during non-business hours and restart them the next day?

    Answer: Pay-as-you-go pricing

    Pay-as-you-go pricing means you only pay for resources while they are running, so stopping instances during off-hours directly reduces costs.

  7. An application serves users globally and requires low latency. Which architectural approach best addresses this requirement?

    Answer: Use Amazon CloudFront CDN and multi-Region deployments

    CloudFront caches content at edge locations worldwide and multi-Region deployments route users to the nearest infrastructure, minimizing latency.