Practice Free EX267 Exam Online Questions
Question #21
What happens when a data science project is deleted?
- A . Only the project metadata is deleted
- B . Persistent storage and data are retained during deletion
- C . User roles and permissions are preserved in the project
- D . All resources in the project are deleted
Correct Answer: D
D
Explanation:
Deleting a project removes all associated resources, including deployments, pods, and services, ensuring a complete cleanup.
D
Explanation:
Deleting a project removes all associated resources, including deployments, pods, and services, ensuring a complete cleanup.
Question #22
Which two access modes can a PVC use?
- A . ReadWriteOnce
- B . ReadOnlyMany
- C . WriteOnlyOnce
- D . ReadWriteMany
Correct Answer: A, D
A, D
Explanation:
ReadWriteOnce allows access by a single node, while ReadWriteMany permits multiple nodes to read and write concurrently.
A, D
Explanation:
ReadWriteOnce allows access by a single node, while ReadWriteMany permits multiple nodes to read and write concurrently.
Question #23
What is the primary purpose of gradient descent?
- A . Model evaluation
- B . Weight initialization
- C . Optimize model parameters
- D . Data preprocessing
Correct Answer: C
C
Explanation:
Gradient descent is an optimization algorithm that adjusts model parameters to minimize the loss function. It iteratively updates weights in the direction that reduces prediction error.
C
Explanation:
Gradient descent is an optimization algorithm that adjusts model parameters to minimize the loss function. It iteratively updates weights in the direction that reduces prediction error.
Question #24
Which two steps are required to enable GPU support in OpenShift AI?
- A . Deploy a StatefulSet for GPU nodes
- B . Enable the Node Feature Discovery Operator
- C . Configure an Ingress Route for GPU workloads
- D . Install the GPU Operator
Correct Answer: B, D
B, D
Explanation:
Enabling GPU support requires the Node Feature Discovery Operator to detect GPU hardware and the GPU Operator to manage GPU device configuration and drivers.
B, D
Explanation:
Enabling GPU support requires the Node Feature Discovery Operator to detect GPU hardware and the GPU Operator to manage GPU device configuration and drivers.
Question #25
Which function is used to evaluate a trained model in TensorFlow?
- A . model.evaluate()
- B . model.fit()
- C . model.train()
- D . model.compile()
Correct Answer: A
A
Explanation:
The model.evaluate() function computes the loss and other metrics for a validation or test dataset, providing insights into the model’s generalization capabilities.
A
Explanation:
The model.evaluate() function computes the loss and other metrics for a validation or test dataset, providing insights into the model’s generalization capabilities.
Question #26
How do you delete a group in OpenShift AI?
- A . oc delete group <group-name>
- B . oc remove group <group-name>
- C . oc erase group <group-name>
- D . oc destroy group <group-name>
Correct Answer: A
A
Explanation:
The oc delete group <group-name> command removes the specified group from the cluster, revoking associated permissions and memberships.
A
Explanation:
The oc delete group <group-name> command removes the specified group from the cluster, revoking associated permissions and memberships.
Question #27
What two steps are required to update a DataScienceCluster version?
- A . Delete and recreate the cluster
- B . Restart the Operator pod
- C . Apply a new YAML file
- D . Edit spec.version
Correct Answer: C, D
C, D
Explanation:
Update the spec.version field in the YAML file and apply the changes using oc apply to ensure the version update is applied.
C, D
Explanation:
Update the spec.version field in the YAML file and apply the changes using oc apply to ensure the version update is applied.
Question #28
Which two Dockerfile instructions are essential for a custom notebook image?
- A . FROM
- B . RUN
- C . CMD
- D . USER
Correct Answer: A, B
A, B
Explanation:
The FROM instruction sets the base image, while RUN executes commands to install packages or customize the notebook environment.
A, B
Explanation:
The FROM instruction sets the base image, while RUN executes commands to install packages or customize the notebook environment.
Question #29
Which two types of data splitting are commonly used in model evaluation?
- A . Random sampling
- B . Stratified split
- C . Train-test split
- D . Over-sampling
Correct Answer: B, C
B, C
Explanation:
Train-test splits divide data into training and testing subsets, while stratified splits ensure class distribution remains consistent, improving evaluation reliability.
B, C
Explanation:
Train-test splits divide data into training and testing subsets, while stratified splits ensure class distribution remains consistent, improving evaluation reliability.
Question #30
What command creates a new data science project in OpenShift AI?
- A . oc apply -f project.yaml
- B . oc create data-project <project-name>
- C . oc deploy project <project-name>
- D . oc new-project <project-name>
Correct Answer: D
D
Explanation:
The oc new-project <project-name> command creates a new OpenShift project for organizing and managing data science workloads.
D
Explanation:
The oc new-project <project-name> command creates a new OpenShift project for organizing and managing data science workloads.