5V0-35.21 Sample Questions & Answers
Topics range from cluster architecture and deployment sizing to configuring policies and object groupings, optimizing capacity and performance, using the troubleshooting workbench, building custom alerts, dashboards and reports, and managing access control.
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- Question 1Intermediate
Capacity Optimization · Given a scenario, identify the cost impact of migrating workloads to a public cloud.
An administrator is using the What-If Planning feature for a 'Migrate to Public Cloud' scenario to compare the cost of running a set of VMs on-premises versus in AWS. After running the scenario, the projected AWS cost is unexpectedly zero. What is the most likely cause for this result?
Show answer & explanation
Correct answer: D
The What-If Planning feature relies on configured rate cards for public cloud providers to calculate costs. If the rates for AWS instance types, storage, and networking have not been downloaded and activated within vRealize Operations, the system has no pricing data to use for the calculation, resulting in a cost of zero.
- Question 2Advanced
Capacity Optimization · Identify requirements for completing cost calculations for a datacenter inventory.
Company Background
A large retail organization,RetailCorp, operates a significant e-commerce platform on a vSphere environment. This environment consists of 10 large clusters spread across two data centers, hosting approximately 5,000 virtual machines. They have recently deployed a vRealize Operations 8.6 Enterprise cluster to gain better insights into capacity, performance, and cost.Current Situation
Management has expressed concern about uncontrolled VM sprawl and inefficient resource utilization. The vRealize Operations team has been tasked with identifying and quantifying waste. Additionally, the finance department requires a showback model to make application owners aware of the cost of the infrastructure they consume. The current vROps policy is the default system policy, and no cost drivers have been configured.Requirements
- Identify all powered-off VMs that have been inactive for more than 60 days.
- Identify all oversized VMs based on a conservative model that only considers usage over the past 30 days.
- Implement a basic showback model based on server hardware and storage costs.
- The solution must not impact the production monitoring alerts currently in place.
Problem
Which set of actions should the vRealize Operations administrator take to meet all stated requirements without disrupting existing monitoring?Show answer & explanation
Correct answer: C
This is the best approach. Modifying the default policy is poor practice and could affect other settings. Creating a new, separate policy for these specific reclamation and analysis settings ensures that production monitoring alerts (governed by the default policy) are not affected. Applying this policy to the target group of VMs allows for the specific reclamation analysis required. Configuring the cost drivers is the necessary step to enable the showback model. This solution meets all requirements in a safe and scalable manner.
- Question 3AdvancedSelect 3
Application Monitoring in vRealize Operations · Identify the process for configuring application monitoring.
A vRealize Operations administrator is tasked with monitoring a custom Java application running on several Linux VMs. The goal is to monitor specific JMX MBean attributes from the application. Which steps are required to accomplish this? (Select THREE)
Show answer & explanation
Correct answers: B, C, D
To monitor JMX attributes, the Jolokia input plugin for Telegraf must be configured. This involves specifying the MBean names and attributes to be collected from the Java application.
The Application Remote Collector is the component responsible for managing the Telegraf agents and discovering applications. It must be deployed and configured first.
The Telegraf agent is installed on the guest OS of the virtual machine to collect metrics from the application and send them to the ARC.
- Question 4Advanced
vRealize Operations Policies and Certificates Management · Identify the characteristics of policy inheritance.
An administrator observes that two different policies apply to a specific virtual machine: one is applied to the vSphere Cluster object (Priority: 100), and another is applied to a custom group containing the VM (Priority: 100). The policies have conflicting settings for the 'CPU|Usage|Anomalies' analysis setting. Which policy's setting will be enforced on the VM?
Show answer & explanation
Correct answer: B
vRealize Operations uses a specific order of precedence for policy application. Policies applied to custom groups take precedence over policies applied to standard vSphere hierarchy groups (like Clusters or Folders), assuming the priorities are equal. Therefore, the setting from the policy applied to the custom group will be enforced.
- Question 5Beginner
Capacity Optimization · Identify the differences between demand and allocation capacity models.
The 'Demand Model' for capacity analysis in vRealize Operations primarily bases its calculations on which set of metrics?
Show answer & explanation
Correct answer: A
The Demand Model focuses on what resources the workloads have actually consumed over time. It analyzes historical usage data to project future needs, providing a more realistic view of capacity than the Allocation Model, which is based on provisioned resources.
- Question 6Intermediate
Custom Dashboards · Given a scenario, identify the interactions between views and widgets on a dashboard.
An administrator needs to create a custom dashboard for the network operations team. The primary requirement is to visualize the traffic flow and relationships between VMs that are part of a multi-tier application. Which widget is best suited for this specific requirement?
Show answer & explanation
Correct answer: D
The Topology widget is specifically designed to display relationships and connections between objects. When used with data from sources like vRealize Network Insight or application monitoring, it can graphically represent the communication paths between VMs, making it the ideal choice for visualizing application traffic flow.
- Question 7Intermediate
User Access Control · Given a scenario, identify how to configure role-based access control.
A new vRealize Operations user with 'Read-Only' role permissions logs in and reports that they cannot see any dashboards related to costing. Other administrators can see these dashboards. What is the most likely reason for this issue?
Show answer & explanation
Correct answer: B
In vRealize Operations, access to dashboards is controlled through sharing permissions. Even if a user has permissions to see the underlying objects and metrics, they will not see a specific dashboard unless it has been explicitly shared with their user account or a group/role they belong to. The 'Read-Only' role does not automatically grant access to all dashboards.
- Question 8Intermediate
Performance Optimization · Identify the configuration options for operational and business intent.
When configuring Business Intent for workload optimization, what is the primary function of setting the 'Cluster Headroom' option?
Show answer & explanation
Correct answer: C
The 'Cluster Headroom' setting allows administrators to specify a buffer of resources (CPU, memory, storage) that should be kept free in the cluster. This prevents Workload Optimization from filling the cluster to its absolute maximum capacity, thereby reserving resources to handle sudden workload spikes or accommodate future VM deployments.
- Question 9Beginner
Troubleshooting and Compliance · Identify the various compliance standards supported by vRealize Operations.
A vRealize Operations administrator needs to assess the environment's configuration against the vSphere Security Configuration Guide. Which feature should be used to perform this assessment?
Show answer & explanation
Correct answer: D
The Compliance feature in vRealize Operations allows administrators to assess their environment against predefined templates, including security guides like the vSphere Security Configuration Guide, as well as standards like PCI DSS, HIPAA, and CIS. This feature will identify any configurations that deviate from the selected benchmark.
- Question 10Beginner
Super Metrics · Identify options to apply super metrics.
True or False: After creating a new Super Metric, it must be enabled in a policy before vRealize Operations will begin collecting data for it.
Show answer & explanation
Correct answer: A
This statement is true. A Super Metric is only a formula definition until it is applied to objects. The primary method for applying a Super Metric is by enabling it within a policy that is assigned to the target objects. Once enabled in the policy, the vRealize Operations analytics engine will begin to calculate and store its value for the objects governed by that policy.
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