CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 321:

  A cloud administrator learns that a major version update. 4.6.0. is available for a business-critical application.

  The application is currently on version 4.5.2. with additional minor versions 3, 4, and 5 available. The administrator needs to perform the update while minimizing downtime.

  Which of the following should the administrator do first?

  A. Apply the minor updates and then restart the machine before applying the major update.
  B. During off hours, decommission the machine and create a new one directly on major update 4.6.0.
  C. Stop the service and apply the major updates directly.
  D. Create a test environment and apply the major update
  D. Create a test environment and apply the major update

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  Explanation

  The first step the administrator should take is to create a test environment and apply the major update there.

  This allows for testing the new version without impacting the production environment, thus minimizing downtime and the potential for unexpected issues.

  References:

  Creating test environments and conducting thorough testing before applying updates in production is a risk mitigation strategy covered under cloud deployment and operations in the CompTIA Cloud+ certification.

• Question 322:

  An organization is developing a new solution for hosting an external website. The systems administrator needs the ability to manage the OS.

  Which of the following methods would be MOST suitable to achieve this objective?

  A. Deploy web servers into an laaS provider.
  B. Implement a cloud-based VDI solution.
  C. Provision web servers in a container environment.
  D. Use PaaS components in the cloud to implement the product.
  A. Deploy web servers into an laaS provider.

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  Explanation

  Deploying web servers into an IaaS (Infrastructure as a Service) provider is the most suitable method to achieve the objective of hosting an external website and managing the OS. IaaS is a cloud service model that provides basic computing resources such as servers, storage, network, etc., to the customers. The customers have full control and flexibility over these resources and can install and configure any software they need on them. IaaS is suitable for hosting web servers and managing the OS, as it allows the customers to choose their preferred OS, web server software, settings, etc., and customize them according to their needs.

• Question 323:

  A cloud administrator is provisioning infrastructure to run an application with the following requirements: Ten midsize instances need to run as a cluster most of the day. Sixteen midsize instances are required during peak hours. Costs must be kept low. The instances must be deployed in an IaaS model. The application has no tolerance for service disruptions.

  Which of the following steps should the cloud architect take to host the application?

  A. Reserve 16 instances but turn off the unused instances outside of peak hours.
  B. Use ten pay-as-you-go instances and add six spot instances during peak hours.
  C. Deploy reserved instances for normal operation and add pay-as-you-go instances during peak hours.
  D. Configure the workload to use spot instances with scheduled scaling for normal operation, including peak hours.
  C. Deploy reserved instances for normal operation and add pay-as-you-go instances during peak hours.

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  Explanation

  This solution provides a cost-effective and highly available approach to meet the application's needs: Reserved instances are a good fit for the ten midsize instances that run most of the day, as they are typically offered at a discounted rate and are guaranteed. During peak hours, pay-as-you-go instances can be added to handle the additional six instances required. This ensures scalability without committing to additional reserved capacity for off-peak times, which helps in reducing costs.

• Question 324:

  A cloud networking engineer is troubleshooting the corporate office's network configuration. Employees in the IT and operations departments are unable to resolve IP addresses on all devices, and the IT department cannot establish a connection to other departments' subnets. The engineer identifies the following configuration currently in place to support the office network:

  

  Each employee needs to connect to the network with a maximum of three hosts. Each subnet must be segregated, but the IT department must have the ability to communicate with all subnets.

  Which of the following meet the IP addressing and routing requirements? (Select two).

  A. Modifying the subnet mask to 255 255 254.0 for IT and operations departments
  B. Configuring static routing to allow access from each subnet to 10.1.40.1
  C. Modifying the BYOD policy to reduce the volume of devices that are allowed to connect to the corporate network
  D. Configuring static routing to allow access from 10.1.30.1 to each subnet
  E. Combining the subnets and increasing the allocation of IP addresses available to support three hosts for each employee
  F. Modifying the subnet mask to 255.255.255.128 for the IT and operations departments
  D. Configuring static routing to allow access from 10.1.30.1 to each subnet
  F. Modifying the subnet mask to 255.255.255.128 for the IT and operations departments

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  Explanation

  To meet the requirements of allowing the IT department to communicate with all subnets while keeping each department segregated and ensuring a maximum of three hosts per employee, two actions are required.

  First, configuring static routing from the IT subnet (10.1.30.1) to each of the other subnets would establish the necessary connectivity. Second, modifying the subnet mask to 255.255.255.128 for the IT and operations departments would provide the needed number of host addresses while maintaining subnet segregation.

  References:

  This solution is based on networking and subnetting principles, which are part of the foundational knowledge for cloud networking within the CompTIA Cloud+ framework.

• Question 325:

  A media company is dealing with a large influx of live stream traffic. A cloud engineer notices the following on a VM:

  - Network usage metric is at 100%.

  - CPU is under 65% utilization.

  - Memory utilization is at 50%.

  - Response time to the website is increasing.

  Which of the following is the best solution to address these issues?

  A. Increasing the storage capacity
  B. Increasing the virtual machine size
  C. Adding an additional network card
  D. Adding a load balancer
  D. Adding a load balancer

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  Explanation

  The bottleneck is network saturation, not CPU, memory, or storage. A load balancer distributes incoming live stream traffic across multiple instances so no single VM becomes overwhelmed by network demand, which improves responsiveness and handles the traffic surge more effectively.

• Question 326:

  A cloud engineer is receiving multiple alerts from the infrastructure monitoring agent. The alerts state that all the VMs in the public subnet are at 100% CPU utilization. However, when the engineer checks the network utilization of the VMs, the network throughput is at normal levels.

  Which of the following is the most likely cause of this issue?

  A. Ransomware
  B. Cryptojacking
  C. DDoS
  D. Zombie instances
  B. Cryptojacking

• Question 327:

  A cloud administrator is choosing a backup schedule for a new application platform that creates many small files. The backup process impacts the performance of the application, and backup times should be minimized during weekdays.

  Which of the following backup types best meets the weekday requirements?

  A. Database dump
  B. Differential
  C. Incremental
  D. Full
  C. Incremental

• Question 328:

  Which of the following best describes a characteristic of a hot site?

  A. Network traffic is balanced between the main site and hot site servers.
  B. Offline server backups are replicated hourly from the main site.
  C. All servers are replicated from the main site in an online status.
  D. Which of the following best describes a characteristic of a hot site?
  C. All servers are replicated from the main site in an online status.

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  Explanation

  When servers in a hot site are clustered with the main site, it indicates that all servers are replicated from the main site in an online status. This means that the hot site maintains a live, real-time copy of data and applications, ensuring immediate availability in the event of a failure at the main site. Unlike options A and B, which describe load balancing and backup strategies respectively, clustering with a hot site as described in option C ensures that the hot site can take over with minimal downtime, maintaining business continuity.

  References:

  CompTIA Cloud+ CV0-004 Study Guide and Official CompTIA Content

• Question 329:

  A cloud engineer wants resource-level visibility for billing reports.

  Which of the following should the cloud engineer configure?

  A. Rightsizing
  B. Invoicing
  C. Reserve instances
  D. Tagging
  D. Tagging

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  Explanation

  Tagging assigns metadata to cloud resources, allowing costs to be tracked and reported at the resource level. By applying consistent tags such as application, department, project, or environment, billing reports can be filtered and analyzed to provide detailed visibility into resource consumption and associated costs.

• Question 330:

  An IT security team wants to ensure that the correct parties are informed when a specific user account is signed in.

  Which of the following would most likely allow an administrator to address this concern?

  A. Creating an alert based on user sign-in criteria
  B. Aggregating user sign-in logs from all systems
  C. Enabling the collection of user sign-in logs
  D. Configuring the retention of all sign-in logs
  A. Creating an alert based on user sign-in criteria

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  Explanation

  To ensure that the correct parties are informed when a specific user account is signed in, the best action is to create an alert based on user sign-in criteria. This alert can notify administrators or security personnel when the specified event occurs.

  References:

  Security monitoring and alerting are critical components of managing cloud environments securely, as discussed in the CompTIA Cloud+ certification.