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

An enterprise is deploying IBM Cloud Pak for Integration across multiple OpenShift clusters in different regions for disaster recovery. They need to ensure that Platform Navigator instances can share authentication configurations and user permissions across all clusters while maintaining independent operational states. Which architectural approach best achieves this requirement?

During a production deployment of App Connect Enterprise, integration servers are experiencing intermittent message processing failures with MQ queue manager connections. Logs show 'MQRC_CONNECTION_BROKEN' errors occurring during peak loads, but connectivity tests succeed. The MQ queue manager has sufficient resources and connection limits. What is the MOST likely root cause and resolution?

A financial services company requires that all API Connect gateway traffic be encrypted end-to-end with mutual TLS, including between the API Gateway and backend services. The backend services use self-signed certificates that cannot be replaced. API calls are failing with certificate validation errors. What configuration changes are required to enable this scenario while maintaining security best practices?

An organization is implementing IBM MQ with Native HA queue managers in a multi-zone OpenShift cluster. After deployment, failover tests show that during a zone failure, the queue manager takes 8-10 minutes to recover, causing unacceptable application downtime. Topology shows 3 replicas across 3 zones with appropriate pod anti-affinity rules. What is the MOST effective optimization to reduce failover time?

During a Cloud Pak for Integration upgrade from v2021.2.1 to v2021.2.5, the administrator needs to upgrade multiple capability instances (API Connect, App Connect, MQ, Event Streams) with minimal downtime. The Platform Navigator upgrade completed successfully. What is the correct sequence and approach for upgrading the capability instances?

An App Connect Dashboard is managing 50+ integration servers in production. The operations team reports that the Dashboard UI is slow and some integration servers are not appearing in the Dashboard view, though the pods are running and processing messages successfully. Log analysis shows no errors in the Dashboard pods. What is the MOST likely cause and resolution?

A company is implementing Event Streams (Kafka) for high-throughput message streaming. After deployment with 3 broker nodes, they experience message loss during broker failures despite configuring producers with acks=all. Performance analysis shows in-sync replicas (ISR) frequently dropping below the replication factor during peak loads. What configuration adjustments would BEST address both the message loss and ISR stability issues?

An API Connect deployment in production is experiencing certificate expiration issues with the gateway service. The administrator needs to implement an automated solution for certificate rotation that minimizes manual intervention and service disruption. The deployment uses custom TLS certificates (not auto-generated). What is the BEST approach to implement automated certificate management?

A multi-tenant Cloud Pak for Integration environment serves 15 different business units with strict isolation requirements. Each business unit needs dedicated instances of App Connect, MQ, and API Connect, with guaranteed resource allocation and network isolation. The OpenShift cluster has 6 worker nodes. What architectural design BEST satisfies these requirements while maintaining operational efficiency?

During peak traffic, an API Connect gateway cluster experiences intermittent 503 Service Unavailable errors for specific APIs while other APIs continue to function normally. The affected APIs call backend services through an invoke policy. CloudWatch metrics show API Gateway pods have available CPU and memory. Backend service health checks pass. What diagnostic approach would MOST effectively identify the root cause?