Base Command Manager installation, configuration, and HA verification: Practice Questions — Control Plane Installation and Configuration (NVIDIA-Certified Professional: AI Infrastructure)
Practice Questions: Base Command Manager Installation, Configuration, and HA Verification These multiple-choice questions are designed to help...
Practice Questions: Base Command Manager Installation, Configuration, and HA Verification
These multiple-choice questions are designed to help candidates prepare for the NVIDIA-Certified Professional: AI Infrastructure exam, focusing specifically on the Base Command Manager installation, configuration, and high availability (HA) verification.
Which component is essential to install first when setting up the Base Command Manager for AI Infrastructure?
- A. NVIDIA Container Toolkit
- B. Command Manager Server
- C. GPU Driver
- D. Slurm Workload Manager
Correct Answer: B
Explanation: The Command Manager Server is the core component that must be installed first to manage AI infrastructure resources effectively. Other components depend on it for orchestration.
What is the primary purpose of configuring High Availability (HA) in the Base Command Manager setup?
- A. To increase GPU performance
- B. To ensure continuous service availability during failures
- C. To simplify user authentication
- D. To reduce network latency
Correct Answer: B
Explanation: HA configuration ensures that if one Command Manager instance fails, another takes over seamlessly, maintaining uninterrupted service.
Which method is commonly used to verify HA functionality after configuring the Command Manager?
- A. Running GPU benchmark tests
- B. Simulating a failover by stopping the active Command Manager instance
- C. Installing additional GPU drivers
- D. Checking container runtime logs
Correct Answer: B
Explanation: Simulating a failover by stopping the active instance tests whether the standby instance correctly assumes control, confirming HA effectiveness.
During Command Manager installation, which configuration file is primarily edited to define cluster nodes and roles?
- A. /etc/nvidia/driver.conf
- B. /etc/command-manager/config.yaml
- C. /etc/slurm/slurm.conf
- D. /usr/local/bin/docker-compose.yml
Correct Answer: B
Explanation: The config.yaml file contains the cluster-specific settings including node definitions and roles for Command Manager.
Which command-line tool is used to check the status of the Command Manager services after installation?
- A. nvidia-smi
- B. cmctl status
- C. docker ps
- D. systemctl status command-manager
Correct Answer: D
Explanation: The Command Manager typically runs as a system service, so 'systemctl status command-manager' provides service health and status information.
What is a recommended best practice to ensure configuration changes in Command Manager are applied correctly?
- A. Restart the Command Manager service after changes
- B. Reinstall the GPU drivers
- C. Clear the Docker cache
- D. Update the Slurm configuration
Correct Answer: A
Explanation: Restarting the Command Manager service reloads the updated configuration, ensuring changes take effect properly.
Which of the following is NOT a valid step in verifying HA setup for Command Manager?
- A. Checking cluster node connectivity
- B. Testing failover by stopping the active node
- C. Running GPU-intensive workloads
- D. Monitoring logs for failover events
Correct Answer: C
Explanation: Running GPU workloads tests GPU functionality but does not verify HA configuration or failover mechanisms.
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