C1000-168 Sample Questions & Answers
Platform administration, from storage volumes to routes and customization, dominates, with the rest split between multi-tenancy planning, online and air-gapped installs, upgrade cycles, user and network security, cluster backups, and monitoring.
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- Question 1Intermediate
Planning · Explain the difference between online and air-gapped installation
A government agency requires a Cloud Pak for Data installation in a secure environment with no internet connectivity. Which component is MANDATORY to facilitate the transfer of container images from the IBM Entitled Registry to the air-gapped cluster?
Show answer & explanation
Correct answer: D
In air-gapped environments, a bastion host (or a portable compute device) is required to pull images from the source registry (IBM Entitled Registry) and then mirror/push them to the private registry inside the restricted network.
- Question 2Advanced
Planning · Explain the use of node/pod affinity
While planning the deployment architecture for a production Cloud Pak for Data cluster, you need to ensure that the platform's control plane components are separated from the user workloads to ensure stability. Which Kubernetes feature should be utilized in the planning phase?
Show answer & explanation
Correct answer: C
Applying taints to specific nodes ensures that only pods with matching tolerations can be scheduled on them. This allows administrators to dedicate specific worker nodes for the Cloud Pak for Data control plane or specific services, isolating them from general workloads.
- Question 3Intermediate
Planning · Describe the deployment architecture
You are designing the storage architecture for a high-performance analytics workload on Cloud Pak for Data. The workload involves massive random I/O operations. Which storage class type is recommended for this specific scenario?
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Correct answer: D
Block storage is generally recommended for databases and high-performance analytics workloads requiring high random I/O throughput, as opposed to file-based storage like NFS which may introduce latency.
- Question 4Intermediate
Installation · Perform a Cloud Pak for Data and services installation online
An administrator is performing an online installation of Cloud Pak for Data. After logging into the Red Hat OpenShift cluster, which
cpd-clicommand is used to install the necessary cluster-wide components such as the NamespaceScope Operator and the Zen Operator?Show answer & explanation
Correct answer: D
The
cpd-cli manage apply-cluster-componentscommand is used to install the shared cluster components that are required before installing the Cloud Pak for Data platform and services. - Question 5Advanced
Installation · Perform a Cloud Pak for Data and services installation in an air-gapped environment
You are tasked with setting up an air-gapped installation. You have already configured a bastion host and installed the
cpd-cli. What is the correct sequence of actions to mirror images to the private container registry?Show answer & explanation
Correct answer: C
The correct sequence involves authenticating with both the source (IBM Entitled Registry) and destination (Private Registry) registries, and then executing the mirror-images command to transfer the images.
graph LR A[Login to Source Registry] --> B[Login to Private Registry] B --> C[Run cpd-cli manage mirror-images] C --> D[Images Pushed to Private Registry] - Question 6Beginner
Installation · Integrate with the Foundational services
During the installation of Cloud Pak for Data, you need to integrate with the IBM Cloud Pak Foundational Services (formerly Common Services). Which namespace is the default location for the Foundational Services when they are shared across the cluster?
Show answer & explanation
Correct answer: B
By default, IBM Cloud Pak Foundational Services are installed in the
ibm-common-servicesnamespace on Red Hat OpenShift, allowing them to be used by multiple Cloud Paks.
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