VMware vRealize Operations - Cloud Management Automation 2023 5V0-35.21 Passing Score

To get application-related data (metrics) from the VM that vRealize Operations doesn’t collect, the administrator can use the custom script feature of the End Point Operations Management agent. The custom script feature allows the administrator to run custom scripts in the end point VM and collect custom data which can then be consumed as a metric. The administrator needs to install the End Point Operations Management agent on the VM, place the appropriate script to the VM, and then configure the agent to call the script from the Manage Agent location for the VM in vRealize Operations. The script metrics are created under an object called Custom Script which is a single object per end point VM. The administrator can view the output for the specific metric in the All Metrics tab1. The Telegraf agent is not used for custom script monitoring, but for application monitoring using predefined plugins2. The script should not be placed in the vRealize Operation Manager, but in the end point VM. References: 1: Custom Script 2: Application Monitoring

According to the VMware vRealize Operations Reference Materials, a vRealize Operations cluster consists of three types of nodes: primary, data, and remote collector. The primary node is the initial and required node that manages the cluster configuration and data synchronization. The data nodes are optional nodes that have adapters installed and perform data collection and analysis. The remote collector nodes are also optional nodes that can navigate firewalls, interface with remote data sources, reduce bandwidth consumption, and reduce the load on the analytics cluster. They only gather objects for the inventory, without storing data or performing analysis. Therefore, options A, C, and E are correct.

The other options are not correct because they are not types of nodes that make up the vRealize Operations cluster. Option B is not correct because the cloud connector is not a node, but a service that connects vRealize Operations to VMware Cloud services. Option D is not correct because the worker node is not a term used in vRealize Operations, but in vRealize Automation. Option F is not correct because the secondary node is also not a term used in vRealize Operations, but in vSphere Replication. References:

• About vRealize Operations Cluster Nodes
• vRealize Operations Manager Cluster Node Types
• Service Discovery Overview

vRealize Operations allows for different node sizes when deploying a cluster to suit various environments and scalability needs. The sizes typically include Small, Medium, and Large, and these sizes determine the capacity and performance of each node in a High Availability configuration.

References:

• About vRealize Operations Cluster Nodes
• High Availability (HA)
• vRealize Operations 8.6.0, 8.6.1, and 8.6.2 Sizing Guidelines

 According to the VMware vRealize Operations Reference Materials, Service Discovery is a feature that allows you to automatically discover and monitor the services running on your virtual machines. Service Discovery can use two methods: credential-based and credential-less. Credential-based Service Discovery requires you to provide guest credentials for each virtual machine, while credential-less Service Discovery uses VMware Tools to run scripts on the guest operating system without requiring credentials.

For Linux virtual machines, credential-less Service Discovery requires the installation of Telegraf agent, which is a data collection and reporting agent that communicates with VMware Tools. If the Telegraf agent is not installed on the Linux virtual machines, Service Discovery will fail to authenticate and collect data from them. Therefore, option A is correct.

Another requirement for Linux virtual machines is to enable the open-vm-tools-sdmg package, which is a service discovery management pack that allows VMware Tools to runscripts for Service Discovery. If the open-vm-tools-sdmg package is not enabled on the Linux virtual machines, Service Discovery will also fail to authenticate and collect data from them. Therefore, option D is correct.

The other options are not correct because they are not related to the authentication status of Service Discovery. Option B is not correct because the required network ports are not specific to Linux virtual machines, and they are only needed for credential-based Service Discovery. Option C is not correct because the version of VMware Tools does not affect the authentication status of Service Discovery, as long as it supports the credential-less method. Option E is not correct because the Endpoint Operations agent is not required for Service Discovery, and it is used for a different purpose of collecting metrics and properties from the guest operating system and applications. References:

• Service Discovery Overview
• Credential-Less Service Discovery with vRealize Operations
• Install Telegraf Agent on Linux Virtual Machines
• [Enable open-vm-tools-sdmg Package on Linux Virtual Machines]