What command sequence is used to identify the exact name of the server that runs as the master SM in a multi-node fabric?
Correct Answer: A
To identify the activeSubnet Manager (SM)node in an InfiniBand fabric, the correct command sequence is: * sminfo * Displays general information about the active SM in the fabric, including itsLID. * smpquery ND <LID> * Resolves theNode Description (ND)at the given LID, revealing the exact hostname or label of the SM server. From the InfiniBand Tools Guide: "The sminfo utility provides the LID of the master SM. Use smpquery ND <LID> to resolve the node name hosting the SM." This two-step approach is standard for locating and validating the SM identity in fabric diagnostics. Incorrect Options: * B (Nl)is an invalid query type. * CandDdo not identify SMs. Reference: InfiniBand SM Tools - sminfo & smpquery Usage
Question 7
You are implementing a multi-tenant environment on your Spectrum-X switches for different departments in your organization. You need to ensure that eachdepartment's network traffic is isolated and secure. Which Spectrum-X security feature would be most effective in creating isolated network environments for each department?
Correct Answer: B
Virtual Routing and Forwarding (VRF)is the most effective method to achievenetwork segmentation and isolationin a multi-tenant environment. From theNVIDIA Cumulus Linux Documentation - VRF Section: "VRF allows multiple instances of routing tables to coexist within the same switch, effectively isolating traffic between tenants or departments." Each department can: * Operate in its own VRF domain * Have independent routing tables * Maintain strict separation of Layer 3 paths Incorrect Options: * A (Port Mirroring)- Used for traffic monitoring, not isolation. * C (ACLs)- Useful for fine-grained filtering, but not scalable tenant isolation. * D (LLDP)- Used for neighbor discovery, not security or isolation. Reference: Cumulus Linux - VRF Support on Spectrum Switches
Question 8
You are automating the deployment of a Spectrum-X network using Ansible. You need to ensure that the playbooks can handle different switch models and configurations efficiently. Which feature of the NVIDIA NVUE Collection helps simplify the automation by providing pre-built roles for common network configurations?
Correct Answer: C
The NVIDIA NVUE Collection for Ansible includes pre-built roles designed to streamline automation tasks across various switch models and configurations. These roles encapsulate common network configurations, allowing for efficient and consistent deployment. By utilizing these roles, network administrators can: Apply standardized configurations across different devices. Reduce the complexity of playbooks by reusing modular components. Ensure consistency and compliance with organizational policies. This approach aligns with Ansible best practices, promoting maintainability and scalability in network automation.
Question 9
What command sequence is used to identify the exact name of the server that runs as the master SM in a multi-node fabric?
Correct Answer: A
To identify the activeSubnet Manager (SM)node in an InfiniBand fabric, the correct command sequence is: sminfo Displays general information about the active SM in the fabric, including itsLID. smpquery ND <LID> Resolves theNode Description (ND)at the given LID, revealing the exact hostname or label of the SM server.
Question 10
When upgrading Cumulus Linux to a new version, which configuration files should be migrated from the old installation? Pick the 2 correct responses below.
Correct Answer: A,B
Before upgrading Cumulus Linux, it's essential to back up configuration files to a different server. The /etc directory is the primary location for all configuration data in Cumulus Linux. Specifically, the following files and directories should be backed up: * /etc/frr/ - Routing application (responsible for BGP and OSPF) * /etc/hostname - Configuration file for the hostname of the switch * /etc/network/ - Network configuration files, most notably /etc/network/interfaces and /etc/network /interfaces.d/ * /etc/cumulus/acl - Access control list configurations Cumulus Linux is a network operating system used on NVIDIA Spectrum switches, including those in the Spectrum-X platform, to provide a Linux-based environment forEthernet networking in AI and HPC data centers. When upgrading Cumulus Linux to a new version, it's critical to migrate specific configuration files to preserve network settings and ensure continuity. The question asks for the two configuration file locations that should be migrated from the old installation during an upgrade. According to NVIDIA's official Cumulus Linux documentation, the key directories containing configuration files that should be migrated during an upgrade are /etc/cumulus/acl (for access control list configurations) and /etc/network (for network interface configurations). These directories store critical network settings that define the switch's behavior, such as ACL rules and interface settings, which must be preserved to maintain network functionality after the upgrade. Exact Extract from NVIDIA Documentation: "When upgrading Cumulus Linux, you must back up and migrate specific configuration files to ensure continuity of network settings. The following directories should be included in the backup: * /etc/cumulus/acl: Contains access control list (ACL) configuration files that define packet filtering and security policies. * /etc/network: Contains network interface configuration files, such as interfaces and ifupdown2 settings, which define the network interfaces and their properties.Back up these directories before upgrading and restore them after the new version is installed to maintain consistent network behavior."-NVIDIA Cumulus Linux Upgrade Guide This extract confirms that options A and B are the correct answers, as /etc/cumulus/acl and /etc/network contain essential configuration files that must be migrated during a Cumulus Linux upgrade. These files ensure that ACL policies and network interface settings are preserved, which are critical for Spectrum-X configurations in AI networking environments. Reference:Upgrading Cumulus Linux - NVIDIA Docs
