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Zorluk: KolayReliability, Predictability, and Disaster Recovery

An online education provider is deploying a new student portal on Microsoft Azure. The provider has the following requirements:
- The application's performance must remain consistent, and resource deployments must follow a standardized, repeatable process.
- The application must automatically recover from localized service disruptions or hardware failures to continue functioning.

Which two cloud computing concepts directly align with these requirements? (Choose two.)

  1. Predictability, which focuses on performance consistency and automated, standardized resource deploymentCevap
  2. Reliability, which ensures the system can recover from failures and continue to functionCevap
  3. C
    Disaster Recovery, which is designed to prevent localized hardware failures from causing temporary application downtime in a single datacenter
  4. D
    Elasticity, which is defined as manually increasing the physical CPU capacity of individual virtual machines to handle a permanent increase in student enrollment

Cevap

Predictability and Reliability are the two cloud computing concepts that align with these requirements. Predictability ensures consistent performance and standardized deployments, while Reliability ensures the platform can recover from localized infrastructure failures and continue to run.
The correct concepts are Predictability and Reliability. Predictability ensures that the application behaves consistently under load and can be deployed repeatably. Reliability ensures that the system is designed to recover from localized hardware or software failures to maintain operation.

Adım Adım Çözüm

1
Analyze the first requirement: consistent performance and standardized, repeatable resource deployments.
This directly matches the definition of Predictability, which encompasses both performance predictability and deployment predictability (e.g., using infrastructure as code templates).
To identify the first correct cloud concept.
2
Analyze the second requirement: automatic recovery from localized service disruptions and hardware failures.
This directly matches the definition of Reliability, which is the system's ability to recover from failures and continue functioning.
To identify the second correct cloud concept.
3
Evaluate the remaining options (Disaster Recovery and Elasticity) against the scenario and definitions.
Disaster Recovery focuses on catastrophic regional outages rather than localized hardware failures (confusing DR with HA/Reliability). Elasticity is about automatic scaling based on demand, not manually increasing capacity for permanent growth (confusing elasticity with manual scalability).
To rule out the incorrect distractors and verify they align with the error taxonomy.

Anahtar Kavram

Reliability and predictability are core cloud computing benefits that ensure systems recover from localized failures and maintain consistent performance and deployment templates.
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Reliability, Predictability, and Disaster Recovery

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