Cloud Computing 面试题与答案
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问题 26. What is the role of a CDN (Content Delivery Network) in cloud computing?
A CDN is a system of distributed servers that deliver web content to users based on their geographic location. It improves website performance, reduces latency, and enhances user experience.
问题 27. Explain the difference between horizontal and vertical scaling in the context of databases.
Horizontal scaling involves adding more database nodes to a system, while vertical scaling involves increasing the resources (CPU, RAM) of an existing database server. Horizontal scaling is often more scalable.
问题 28. What is a 'server farm' in cloud computing?
A server farm is a group of interconnected servers used to provide computing resources. It is designed to ensure high availability, reliability, and scalability for applications and services.
问题 29. Explain the concept of 'Fault Tolerance' in cloud computing.
Fault tolerance is the ability of a system to continue operating without interruption in the presence of hardware or software failures. Cloud environments use redundancy and failover mechanisms to achieve fault tolerance.
问题 30. What is 'Immutable Infrastructure' in cloud computing?
Immutable infrastructure is an approach where once an infrastructure component is deployed, it is never modified. Instead, new instances are created with updates, reducing configuration drift and improving consistency.
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