Assess your understanding of multi-cluster architecture, federation principles, and resource management strategies across distributed clusters. This quiz covers core concepts, use cases, and common challenges related to multi-cluster and federated environments.
Which of the following is a primary advantage of implementing a multi-cluster architecture for distributed applications across different geographic regions?
Explanation: Multi-cluster architectures enhance availability and disaster recovery by distributing applications across distinct locations, reducing the risk of downtime. Guaranteed single point of control is not a benefit because each cluster can operate independently. Automatic reduction of network latency is not guaranteed for all clients, as latency depends on the client's proximity to clusters. A single resource file may not simplify configuration since cluster-specific adjustments are needed.
In the context of cluster federation, what is the main purpose of federating resources across multiple clusters?
Explanation: Federation allows consistent policy application and keeps resources synchronized across clusters, improving management and reliability. Removing network authentication would be insecure and is not a purpose of federation. Full workload isolation is not always desired in federation, as some sharing and coordination are key goals. Disabling autoscaling goes against the efficiency often sought with federation.
A company wants to minimize downtime during regional cluster outages and maintain application access for users worldwide. Which multi-cluster approach best addresses this requirement?
Explanation: Deploying redundant application instances across multiple clusters in different regions increases resilience and enables failover if an outage occurs in one region. Limiting to a single cluster or using one centralized cluster creates a single point of failure. Running standalone processes on a local server does not provide the global redundancy or availability a multi-cluster setup offers.
What is a common challenge faced when synchronizing configuration across federated clusters?
Explanation: As clusters may have unique settings or naming conventions, synchronizing configurations can lead to conflicts that must be resolved. Network partitions cannot be eliminated completely just through configuration synchronization. Version mismatches typically occur across clusters, not within one. Automatic storage scaling is not a direct challenge related to configuration sync.
In a multi-cluster setup, which strategy helps ensure secure and reliable network communication between clusters hosting sensitive workloads?
Explanation: Securing communication through encryption and clear access controls helps protect sensitive data and ensures reliable connections. Allowing unrestricted public communication increases vulnerability. Relying solely on default routes may not meet security and reliability requirements. Disabling network policies can lead to security risks and is not recommended for sensitive environments.