Câu hỏi phỏng vấn Software Architecture
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What does it mean "System Shall Be Resilient"?

Câu trả lời

The term "System Shall Be Resilient" in software architecture refers to the design and implementation of systems that are capable of continuing to operate effectively under adverse conditions, such as hardware failures, high traffic loads, or cyber attacks. Resilience in this context is about ensuring that the system can handle and recover from failures gracefully, without significant disruption to the service or loss of data[1][2][3][4].

Key Aspects of System Resilience

  1. Fault Tolerance: This involves designing systems that can continue functioning even when some components fail. Fault tolerance strategies might include redundancy, where multiple instances of a component are run to ensure that if one fails, others can take over[2][4].

  2. Failure Recovery: Resilient systems are equipped with mechanisms to detect, isolate, and recover from failures quickly. This might involve automated self-healing processes that restore system functionality without human intervention[2].

  3. Redundancy: Implementing redundancy at various levels (hardware, software, data) is a common approach to enhance resilience. This ensures that if one part of the system fails, other parts can handle the workload until the issue is resolved[2].

  4. Scalability and Elasticity: Resilient systems can adjust their resources dynamically based on the load. This capability helps in managing sudden spikes in demand without affecting the system's performance[2].

  5. Resilient Communication: Ensuring that the system components can communicate effectively even in the face of network failures or disruptions is crucial. This might involve implementing robust communication protoco...

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