Pass the IBM IBM Certified Administrator - Cloud Pak for Integration V2021.2 C1000-130 Questions and answers with CertsForce

Before installing IBM Cloud Pak for Integration (CP4I) on an OpenShift Cluster, an administrator needs to verify that the cluster meets the infrastructure prerequisites such as CPU, memory, and overall resource availability.

The most effective way to check real-time resource utilization and capacity is by using the oc adm top nodes command.

This command provides a summary of CPU and memory usage for all nodes in the cluster.

It is part of the OpenShift administrator CLI (oc adm), which is designed for cluster-wide management.

The information is fetched from Metrics Server or Prometheus, giving accurate real-time data.

It helps administrators assess whether the cluster has sufficient resources to support CP4I deployment.

Why is oc adm top nodes the correct answer?Example usage:oc adm top nodes

Example Output:scss

Copy

NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%

worker-node-1 1500m 30% 8Gi 40%

worker-node-2 1200m 25% 6Gi 30%

Why the Other Options Are Incorrect?Option

Explanation

Correct?

A. Use the oc cluster status command to dump the node capacity and utilization statistics for all the nodes.

❌ Incorrect – The oc cluster status command does not exist in OpenShift CLI. Instead, oc status gives a summary of the cluster but does not provide node resource utilization.

❌

B. Use the oc get nodes -o wide command to obtain the capacity and utilization statistics of memory and compute of the nodes.

❌ Incorrect – The oc get nodes -o wide command only shows basic node details like OS, internal/external IPs, and roles. It does not display CPU or memory utilization.

❌

C. Use the oc describe nodes command to dump the node capacity and utilization statistics for all the nodes.

❌ Incorrect – The oc describe nodes command provides detailed information about a node, but not real-time resource usage. It lists allocatable resources but does not give current utilization stats.

❌

Final Answer:✅ D. Use the oc adm top nodes command to obtain the capacity and utilization statistics of memory and compute of the nodes.

IBM Cloud Pak for Integration - OpenShift Infrastructure Requirements

Red Hat OpenShift CLI Reference - oc adm top nodes

Red Hat OpenShift Documentation - Resource Monitoring

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

In IBM Cloud Pak for Integration (CP4I) v2021.2, only a Cluster Administrator has the necessary permissions to replace default keys and certificates. This is because modifying security components such as TLS certificates affects the entire cluster and requires elevated privileges.

Access to OpenShift and Cluster-Wide Resources:

The Cluster Administrator role has full administrative control over the OpenShift cluster where CP4I is deployed.

Replacing keys and certificates often involves interacting with OpenShift secrets and security configurations, which require cluster-wide access.

Management of Certificates and Encryption:

In CP4I, certificates are used for securing communication between integration components and external systems.

Updating or replacing certificates requires privileges to modify security configurations, which only a Cluster Administrator has.

Control Over Security Policies:

CP4I security settings, including certificates, are managed at the cluster level.

Cluster Administrators ensure compliance with security policies, including certificate renewal and management.

Why is "Cluster Administrator" the Correct Answer?

Why Not the Other Options?Option

Reason for Exclusion

A. Cluster Manager

This role is typically responsible for monitoring and managing cluster resources but does not have full administrative control over security settings.

B. Super-user

There is no predefined "Super-user" role in CP4I. If referring to an elevated user, it would still require a Cluster Administrator's permissions to replace certificates.

C. System User

System users often refer to service accounts or application-level users that lack the required cluster-wide security privileges.

Thus, the Cluster Administrator role is the only one with the required access to replace default keys and certificates in Cloud Pak for Integration.

IBM Cloud Pak for Integration Security Overview

Managing Certificates in Cloud Pak for Integration

OpenShift Cluster Administrator Role

IBM Cloud Pak for Integration - Replacing Default Certificates

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

Upgrading from version 3.4.x and 3.5.x to version 3.6.x

Before you upgrade the foundational services installer version, make sure that the installer catalog source image has the correct tag.

If, during installation, you had set the catalog source image tag as latest, you do not need to manually change the tag.

If, during installation, you had set the catalog source image tag to a specific version, you must update the tag with the version that you want to upgrade to. Or, you can change the tag to latest to automatically complete future upgrades to the most current version.

To update the tag, complete the following actions.

To update the catalog source image tag, run the following command.

oc edit catalogsource opencloud-operators -n openshift-marketplace

Update the image tag.

Change image tag to the specific version of 3.6.x. The 3.6.3 tag is used as an example here:

spec:

displayName: IBMCS Operators

image: 'docker.io/ibmcom/ibm-common-service-catalog:3.6.3'

publisher: IBM

sourceType: grpc

updateStrategy:

registryPoll:

interval: 45m

Change the image tag to latest to automatically upgrade to the most current version.

spec:

displayName: IBMCS Operators

image: 'icr.io/cpopen/ibm-common-service-catalog:latest'

publisher: IBM

sourceType: grpc

updateStrategy:

registryPoll:

interval: 45m

To check whether the image tag is successfully updated, run the following command:

oc get catalogsource opencloud-operators -n openshift-marketplace -o jsonpath='{.spec.image}{"\n"}{.status.connectionState.lastObservedState}'

The following sample output has the image tag and its status:

icr.io/cpopen/ibm-common-service-catalog:latest

READY%

https://www.ibm.com/docs/en/cpfs?topic=online-upgrading-foundational-services-from-operator-release

In IBM Cloud Pak for Integration (CP4I) v2021.2, which runs on Red Hat OpenShift, the component responsible for determining the placement of workloads (pods) on worker nodes is the Scheduler.

API Server (Option A): The API Server is the front-end of the OpenShift and Kubernetes control plane, handling REST API requests, authentication, and cluster state updates. However, it does not decide where workloads should be placed.

Controller Manager (Option B): The Controller Manager ensures the desired state of the system by managing controllers (e.g., ReplicationController, NodeController). It does not handle pod placement.

Etcd (Option C): Etcd is the distributed key-value store used by OpenShift and Kubernetes to store cluster state data. It plays no role in scheduling workloads.

Scheduler (Option D - Correct Answer): The Scheduler is responsible for selecting the most suitable node to run a newly created pod based on resource availability, affinity/anti-affinity rules, and other constraints.

When a new pod is created, it initially has no assigned node.

The Scheduler evaluates all worker nodes and assigns the pod to the most appropriate node, ensuring balanced resource utilization and policy compliance.

In CP4I, efficient workload placement is crucial for maintaining performance and resilience, and the Scheduler ensures that workloads are optimally distributed across the cluster.

Explanation of OpenShift Components:Why the Scheduler is Correct?IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

IBM CP4I Documentation – Deploying on OpenShift

Red Hat OpenShift Documentation – Understanding the Scheduler

Kubernetes Documentation – Scheduler

In IBM Cloud Pak for Integration (CP4I) v2021.2, which runs on Red Hat OpenShift, administrators often need to interact with running containers for troubleshooting, debugging, or configuration changes. The correct command to attach the shell to a running container is:

oc attach -c

This command connects the user to the standard input (stdin), output (stdout), and error (stderr) streams of the specified container inside a pod.

Alternatively, for interactive shell access, administrators can use:

oc exec -it -c -- /bin/sh

or

oc exec -it -c -- /bin/bash

if the container supports Bash.

A. run → ❌ Incorrect

The oc run command creates a new pod rather than attaching to an existing running container.

C. connect → ❌ Incorrect

There is no oc connect command in OpenShift or Kubernetes for attaching to a container shell.

D. shell → ❌ Incorrect

OpenShift and Kubernetes do not have a shell command for connecting to a running container.

Instead, the oc exec command is used to start an interactive shell session inside a container.

Explanation of Incorrect Answers:

OpenShift CLI (oc) Command Reference

IBM Cloud Pak for Integration Troubleshooting Guide

Kubernetes attach vs exec Commands

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

In IBM Cloud Pak for Integration (CP4I) v2021.2, which runs on Red Hat OpenShift Container Platform (OCP), a Kubernetes namespace is alternatively referred to as a Project.

In Kubernetes, a namespace is a logical isolation mechanism that helps organize and manage resources within a cluster.

In OpenShift (OCP), which is built on Kubernetes, a Project is essentially a namespace with additional OpenShift-specific functionalities such as role-based access control (RBAC), quotas, and security policies.

OpenShift extends the standard Kubernetes namespace concept by integrating user and group access controls, making the Project a more feature-rich alternative.

Thus, in the context of IBM Cloud Pak for Integration (CP4I) v2021.2, the correct alternative representation of a Kubernetes namespace is a Project in OpenShift.

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

IBM CP4I Documentation – OpenShift Project Management

Red Hat OpenShift Documentation – Understanding Projects and Namespaces

Kubernetes Documentation – Namespaces

When troubleshooting an IBM Cloud Pak for Integration (CP4I) v2021.2 instance, IBM Support requires diagnostic data that provides insights into the system’s performance, errors, and failures. The most critical diagnostic information comes from the Standard OpenShift Container Platform logs because:

CP4I runs on OpenShift, and its components are deployed as Kubernetes pods, meaning logs from OpenShift provide essential insights into infrastructure-level and application-level issues.

The OpenShift logs include:

Pod logs (oc logs ), which contain information about application behavior.

Event logs (oc get events), which provide details about errors, scheduling issues, or failed deployments.

Node and system logs, which help diagnose resource exhaustion, networking issues, or storage failures.

B. Platform Navigator event logs → Incorrect

While Platform Navigator manages CP4I services, its event logs focus mainly on UI-related issues and do not provide deep troubleshooting data needed for IBM Support.

C. Cloud Pak For Integration activity logs → Incorrect

CP4I activity logs include component-specific logs but do not cover the underlying OpenShift platform or container-level issues, which are crucial for troubleshooting.

D. Integration tracing activity reports → Incorrect

Integration tracing focuses on tracking API and message flows but is not sufficient for diagnosing broader CP4I system failures or deployment issues.

Explanation of Incorrect Answers:

IBM Cloud Pak for Integration Troubleshooting Guide

OpenShift Log Collection for Support

IBM MustGather for Cloud Pak for Integration

Red Hat OpenShift Logging and Monitoring

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

Uninstalling IBM Cloud Pak for Integration (CP4I) v2021.2 requires removing the operators, instances, and related resources from the OpenShift cluster. One method to achieve this is through the OpenShift console, which provides a graphical interface for managing operators and deployments.

The OpenShift Web Console allows administrators to:

Navigate to Operators → Installed Operators and remove CP4I-related operators.

Delete all associated custom resources (CRs) and namespaces where CP4I was deployed.

Ensure that all PVCs (Persistent Volume Claims) and secrets associated with CP4I are also deleted.

This is an officially supported method for uninstalling CP4I in OpenShift environments.

Why Option D (OpenShift Console) is Correct:

A. Uninstall.sh → ❌ Incorrect

There is no official Uninstall.sh script provided by IBM for CP4I removal.

IBM’s documentation recommends manual removal through OpenShift.

B. Cloud Pak for Integration console → ❌ Incorrect

The CP4I console is used for managing integration components but does not provide an option to uninstall CP4I itself.

C. Operator Catalog → ❌ Incorrect

The Operator Catalog lists available operators but does not handle uninstallation.

Operators need to be manually removed via the OpenShift Console or CLI.

Explanation of Incorrect Answers:

Uninstalling IBM Cloud Pak for Integration

OpenShift Web Console - Removing Installed Operators

Best Practices for Uninstalling Cloud Pak on OpenShift

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

In an air-gapped environment, the OpenShift cluster does not have direct internet access, which means that new software images, such as IBM API Connect, must be manually mirrored from an external source.

The correct approach for installing a new API Connect capability in an air-gapped OpenShift environment is to:

Use a laptop or a bastion host that does have internet access to pull required container images from IBM’s entitled software registry.

Leverage Container Application Software for Enterprises (CASE) files to download and transfer images to the private OpenShift registry.

Mirror images into the OpenShift cluster by using OpenShift’s built-in image mirror utilities (oc mirror).

This method ensures that all required container images are available locally within the air-gapped environment.

Why the Other Options Are Incorrect?Option

Explanation

Correct?

B. An OVA form-factor of the Cloud Pak for Integration is recommended for high-security deployments.

❌ Incorrect – IBM Cloud Pak for Integration does not provide an OVA (Open Virtual Appliance) format for API Connect deployments. It is containerized and runs on OpenShift.

❌

C. A pass-through route must be configured in the OpenShift Container Platform to connect to the online image registry.

❌ Incorrect – Air-gapped environments have no internet connectivity, so this approach would not work.

❌

D. Use secure FTP to mirror software images in the OpenShift Container Platform cluster nodes.

❌ Incorrect – OpenShift does not use FTP for image mirroring; it relies on oc mirror and image registries for air-gapped deployments.

❌

Final Answer:✅ A. Configure a laptop or bastion host to use Container Application Software for Enterprises files to mirror images.

IBM API Connect Air-Gapped Installation Guide

IBM Container Application Software for Enterprises (CASE) Documentation

Red Hat OpenShift - Mirroring Images for Disconnected Environments

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References:

IBM Cloud Pak for Integration (CP4I) v2021.2 is designed to run on Red Hat OpenShift Container Platform (OCP). Each version of CP4I has a minimum required OpenShift version to ensure compatibility, performance, and security.

For Cloud Pak for Integration v2021.2, the minimum required OpenShift version is 4.7.4.

Compatibility: CP4I components, including IBM MQ, API Connect, App Connect, and Event Streams, require specific OpenShift versions to function properly.

Security & Stability: Newer OpenShift versions include critical security updates and performance improvements essential for enterprise deployments.

Operator Lifecycle Management (OLM): CP4I uses OpenShift Operators, and the correct OpenShift version ensures proper installation and lifecycle management.

Minimum required OpenShift version: 4.7.4

Recommended OpenShift version: 4.8 or later

Key Considerations for OpenShift Version Requirements:IBM’s Official Minimum OpenShift Version Requirements for CP4I v2021.2:

IBM officially requires at least OpenShift 4.7.4 for deploying CP4I v2021.2.

OpenShift 4.6.x versions are not supported for CP4I v2021.2.

OpenShift 4.7.4 is the first fully supported version that meets IBM's compatibility requirements.

Why Answer A (4.7.4) is Correct?

B. 4.6.8 → Incorrect

OpenShift 4.6.x is not supported for CP4I v2021.2.

IBM Cloud Pak for Integration v2021.1 supported OpenShift 4.6, but v2021.2 requires 4.7.4 or later.

C. 4.7.4 → Correct

This is the minimum required OpenShift version for CP4I v2021.2.

D. 4.6.2 → Incorrect

OpenShift 4.6.2 is outdated and does not meet the minimum version requirement for CP4I v2021.2.

Explanation of Incorrect Answers:

IBM Cloud Pak for Integration v2021.2 System Requirements

Red Hat OpenShift Version Support Matrix

IBM Cloud Pak for Integration OpenShift Deployment Guide

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration References: