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NEW QUESTION # 58
Which OpenShift component controls the placement of workloads on nodes for Cloud Pak for Integration deployments?
Answer: A
Explanation:
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.
Explanation of OpenShift Components:
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.
Why the Scheduler is Correct?
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.
IBM Cloud Pak for Integration (CP4I) v2021.2 Administration Reference:
IBM CP4I Documentation - Deploying on OpenShift
Red Hat OpenShift Documentation - Understanding the Scheduler
Kubernetes Documentation - Scheduler
NEW QUESTION # 59
An administrator has been given an OpenShift Cluster to install Cloud Pak for Integration.
What can the administrator use to determine if the infrastructure pre-requisites are met by the cluster?
Answer: B
NEW QUESTION # 60
OpenShift Pipelines can be used to automate the build of custom images in a CI/CD pipeline and they are based on Tekton.
What type of component is used to create a Pipeline?
Answer: A
Explanation:
OpenShift Pipelines, which are based on Tekton, use various components to define and execute CI/CD workflows. The fundamental building block for creating a Pipeline in OpenShift Pipelines is a Task.
Key Tekton Components:
Task (✅ Correct Answer)
A Task is the basic unit of work in Tekton.
Each Task defines a set of steps (commands) that are executed in containers.
Multiple Tasks are combined into a Pipeline to form a CI/CD workflow.
Pipeline (uses multiple Tasks)
A Pipeline is a collection of Tasks that define the entire CI/CD workflow.
Each Task in the Pipeline runs in sequence or in parallel as specified.
Why the Other Options Are Incorrect?
Option
Explanation:
Correct?
A .TaskRun
❌ Incorrect - A TaskRun is an execution instance of a Task, but it does not define the Pipeline itself.
❌
C . TPipe
❌ Incorrect - No such Tekton component called TPipe exists.
❌
D . Pipe
❌ Incorrect - The correct term is Pipeline, not "Pipe". OpenShift Pipelines do not use this term.
❌
Final answer:
✅ B . Task
IBM Cloud Pak for Integration (CP4I) v2021.2 Administration Reference:
OpenShift Pipelines (Tekton) Documentation
Tekton Documentation - Understanding Tasks
IBM Cloud Pak for Integration - CI/CD with OpenShift Pipelines
NEW QUESTION # 61
Which two statements are true about the Ingress Controller certificate?
Answer: B,C
Explanation:
In IBM Cloud Pak for Integration (CP4I) v2021.2, which runs on Red Hat OpenShift, the Ingress Controller is responsible for managing external access to services running within the cluster. The Ingress Controller certificate ensures secure communication between clients and the OpenShift cluster.
Explanation of Correct Answers:
A . The administrator can specify a custom certificate at a later time. ✅ OpenShift allows administrators to replace the default self-signed certificate with a custom TLS certificate at any time.
This is typically done using a Secret in the appropriate namespace and updating the IngressController resource.
Example command to update the Ingress Controller certificate:
oc create secret tls my-custom-cert --cert=custom.crt --key=custom.key -n openshift-ingress oc patch ingresscontroller default -n openshift-ingress-operator --type=merge -p '{"spec":{"defaultCertificate":{"name":"my-custom-cert"}}}' This ensures secure access with a trusted certificate instead of the default self-signed certificate.
C . By default, OpenShift uses an internal self-signed certificate. ✅
If no custom certificate is provided, OpenShift automatically generates and assigns a self-signed certificate for the Ingress Controller.
This certificate is not trusted by browsers or external clients and typically causes SSL/TLS warnings unless replaced.
Explanation of Incorrect Answers:
B . The Ingress Controller does not support the use of a custom certificate. ❌ Incorrect OpenShift fully supports custom certificates for the Ingress Controller, allowing secure TLS communication.
D . By default, OpenShift does not use any certificate if one is not applied during the initial setup. ❌ Incorrect OpenShift always generates a default self-signed certificate if no custom certificate is provided.
E . Certificate assignment is only applicable during initial setup. ❌ Incorrect Custom certificates can be assigned at any time, not just during initial setup.
IBM Cloud Pak for Integration (CP4I) v2021.2 Administration Reference:
OpenShift Ingress Controller TLS Configuration
IBM Cloud Pak for Integration Security Configuration
Managing OpenShift Cluster Certificates
NEW QUESTION # 62
Which two authentication types support single sign-on?
Answer: C,D
Explanation:
Single Sign-On (SSO) is an authentication mechanism that allows users to log in once and gain access to multiple applications without re-entering credentials. In IBM Cloud Pak for Integration (CP4I), Enterprise LDAP and OpenShift authentication both support SSO.
Enterprise LDAP (B) - ✅ Supports SSO
Lightweight Directory Access Protocol (LDAP) is commonly used in enterprises for centralized authentication.
CP4I can integrate with Enterprise LDAP, allowing users to authenticate once and access multiple cloud services without needing separate logins.
OpenShift Authentication (E) - ✅ Supports SSO
OpenShift provides OAuth-based authentication, enabling SSO across multiple OpenShift-integrated services.
CP4I uses OpenShift's built-in identity provider to allow seamless user authentication across different Cloud Pak components.
Analysis of the Incorrect Options:
A . 2FA (Incorrect):
Two-Factor Authentication (2FA) enhances security by requiring an additional verification step but does not inherently support SSO.
C . Plain Text over HTTPS (Incorrect):
Plain text authentication is insecure and does not support SSO.
D . Enterprise SSH (Incorrect):
SSH authentication is used for remote access to servers but is not related to SSO.
IBM Cloud Pak for Integration (CP4I) v2021.2 Administration Reference:
IBM Cloud Pak for Integration Authentication & SSO Guide
Red Hat OpenShift Authentication and Identity Providers
IBM Cloud Pak - Integrating with Enterprise LDAP
NEW QUESTION # 63
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