Final answer:
The recommended number of nodes for a managed cluster typically ranges from 4-10 for a balance of redundancy and manageability. However, optimal size varies, and larger or smaller clusters may be needed based on specific application requirements.
Step-by-step explanation:
Recommended Number of Nodes for a Managed Cluster When considering what is the recommended number of nodes for a sufficiently sized managed cluster, there is no one-size-fits-all answer as it depends on the specific use case and requirements of the system in question. However, in many professional environments, a cluster size of 4-10 nodes (option b) is common for achieving a balance of redundancy, failover capability, and management overhead. This size allows for high availability and efficient load distribution while not being excessively large to manage. Clusters with 1-3 nodes (option a) can be sufficient for smaller or less critical applications, while those with 11-20 nodes (option c) or 21+ nodes (option d) may be needed for large-scale, enterprise-grade applications that require high performance and extensive failover capabilities. Ultimately, the ideal cluster size should be determined based on a careful assessment of the workload, data, throughput, and redundancy needs. Having 4 to 10 nodes in a managed cluster provides a balance between redundancy, fault tolerance, and resource capacity. It allows for distributed computing, workload scalability, and better resilience to node failures. The exact optimal number can depend on factors such as the nature of the workloads, performance requirements, and the desired level of fault tolerance for the specific use case.