IBM Cloud Pak for Integration v2021.2 Administration Advanced Practice Exam: Hard Questions 2025

During an air-gapped installation of IBM Cloud Pak for Integration (CP4I) on OpenShift, the Platform UI and one capability install successfully, but subsequent capability installs fail with image pull errors (ImagePullBackOff) even though the images exist in the internal registry. The cluster uses an imageContentSourcePolicy (ICSP) for mirroring. What is the MOST likely root cause and best corrective action?

A CP4I administrator must design storage for MQ and App Connect Enterprise (ACE) that ensures high availability and avoids split-brain issues. The OpenShift cluster spans multiple zones. Which approach BEST aligns with CP4I operational requirements for stateful workloads?

After upgrading operators, an administrator observes that some operands remain stuck in a "Pending" or "Reconciling" state. Operator logs show repeated errors indicating insufficient permissions to create resources in a target namespace used for runtime components. The cluster uses separate namespaces per team, and the Platform UI is installed in a central namespace. What is the BEST way to resolve this while maintaining least privilege?

A company uses GitOps to manage CP4I custom resources. An emergency change was made directly in the cluster to an IntegrationServer resource to restore service, but within minutes it reverted. The team wants to keep GitOps as the source of truth while enabling controlled break-glass changes with auditability. What is the BEST administrative approach?

An administrator must rotate TLS certificates used by multiple CP4I capabilities exposed through OpenShift Routes. The goal is to minimize downtime and avoid breaking mTLS between internal services. Which strategy is BEST?

A CP4I cluster experiences intermittent performance degradation. Node CPU and memory are within limits, but network latency spikes correlate with large message bursts through MQ and event-driven flows. The administrator suspects noisy-neighbor effects between high-throughput integration workloads and control-plane/operator components. Which action BEST mitigates this while preserving manageability?

An ACE IntegrationServer pod repeatedly restarts. The pod events show OOMKilled, but the container memory limit seems sufficient. Logs indicate large spikes during flow deployment and then normal runtime usage. What is the BEST remediation approach that balances stability and cluster efficiency?

After enabling enhanced security policies, MQ channel connections from an external application start failing intermittently. Internal cluster-to-cluster MQ traffic remains healthy. The MQ logs show TLS handshake failures, and OpenShift router logs show occasional renegotiation issues. Which troubleshooting path is MOST likely to identify the true problem quickly?

A production event-driven integration uses Event Streams (Kafka) and multiple consuming runtimes. After a scaling change, consumer lag grows steadily, but broker CPU is low and disk I/O is normal. The administrator notices frequent consumer group rebalances and short-lived consumer pods. What is the MOST effective corrective action?

A team must expose APIs through API management while ensuring that backend integration runtimes are not directly reachable from outside the cluster. They also require distinct rate limits and client authentication per consumer application, with minimal operational coupling to backend releases. Which architecture BEST satisfies these requirements in CP4I?