CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 291:

  An organization is currently deploying a private cloud model. All devices should receive the time from the local environment with the least administrative effort. Which of the following ports needs to be opened to fulfill this requirement?

  A. 53
  B. 67
  C. 123
  D. 161
  C. 123

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  Explanation

  Port 123 is what needs to be opened to ensure all devices receive the time from the local environment with the least administrative effort in a private cloud model. Port 123 is the port used by NTP (Network Time Protocol), which is a protocol that synchronizes the clocks of network devices and systems. NTP can help to ensure accurate and consistent time across different devices and systems in a cloud environment, which can facilitate coordination, communication, logging, auditing, etc.

  https://www.sciencedirect.com/topics/computer-science/network-time-protocol#:~:text=NTP%20is%20a%20built%2Don,for%20example%2C%20a%20desktop).

• Question 292:

  Which of the following techniques would be used to deliver SLA performance guarantees for a VM in a virtual environment? (Select two.)

  A. Licensing
  B. Mirroring
  C. Resource pooling
  D. Memory ballooning
  E. Reservations
  B. Mirroring
  C. Resource pooling

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  Explanation

• Question 293:

  A company is using a hybrid cloud environment. The private cloud is hosting the business applications, and the cloud services are being used to replicate for availability purposes. The cloud services are also being used to accommodate the additional resource requirements to provide continued services. Which of the following scalability models is the company utilizing?

  A. Vertical scaling
  B. Autoscaling
  C. Cloud bursting
  D. Horizontal scaling
  C. Cloud bursting

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  Explanation

  Cloud bursting is a scalability model in which an organization uses its private cloud resources for normal day-to-day computing but relies on public cloud resources (cloud services) during periods of increased demand or resource requirements. In this scenario, the private cloud hosts the business applications, and the public cloud services are used for replication and to provide additional resources when needed, making it an example of cloud bursting to handle scalability requirements.

• Question 294:

  A systems administrator is working on the backup schedule for a critical business application that is running in a private cloud. Which of the following would help the administrator schedule the frequency of the backup job?

  A. RPO
  B. MTTR
  C. SLA
  D. RTO
  A. RPO

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  Explanation

  RPO (Recovery Point Objective) is what would help the administrator schedule the frequency of the backup job for a critical business application that is running in a private cloud. RPO is a metric that measures how much data can be lost or how far back in time a recovery point can be without causing significant impact or damage. RPO can help to schedule the frequency of the backup job by determining how often backups should be performed to minimize data loss in case of a disruption or disaster.

• Question 295:

  An organization has two businesses that are developing different software products. They are using a single cloud provider with multiple IaaS instances. The organization identifies that the tracking of costs for each business are inaccurate.

  Which of the following is the BEST method for resolving this issue?

  A. Perform segregation of the VLAN and capture egress and ingress values of each network interface
  B. Tag each server with a dedicated cost and sum them based on the businesses
  C. Split the total monthly invoice equally between the businesses
  D. Create a dedicated subscription for the businesses to manage the costs
  B. Tag each server with a dedicated cost and sum them based on the businesses

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  Explanation

  Tagging each server with a dedicated cost and summing them based on the businesses is the best method for resolving the issue of inaccurate cost tracking for different businesses that use multiple IaaS instances within a single cloud provider. Tagging can help identify and organize the servers based on various criteria, such as name, purpose, owner, or cost center. Tagging can also enable granular and accurate billing and reporting based on the tags. Summing the costs based on the businesses can help allocate and distribute the costs correctly and fairly among the different businesses.

  References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5

• Question 296:

  Which of the following enables CSPs to offer unlimited capacity to customers?

  A. Adequate budget
  B. Global data center distribution
  C. Economies of scale
  D. Agile project management
  C. Economies of scale

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  Explanation

  https://learn.saylor.org/mod/page/view.php?id=27582

• Question 297:

  A company has developed a cloud-ready application. Before deployment, an administrator needs to select a deployment technology that provides a high level of portability and is lightweight in terms of footprint and resource requirements. Which of the following solutions will be BEST to help the administrator achieve the requirements?

  A. Containers
  B. Infrastructure as code
  C. Desktop virtualization
  D. Virtual machines
  A. Containers

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  Explanation

  Containers are a type of deployment technology that packages an application and its dependencies into a lightweight and portable unit that can run on any platform or environment. Containers can provide a high level of portability and are lightweight in terms of footprint and resource requirements, as they do not need a full operating system or hypervisor to run. Containers can also enable faster and easier deployment, scaling, and management of cloud-based applications. Containers are the best solution to help the administrator achieve the requirements for deploying a cloud- ready application.

  References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6

  https://blog.netapp.com/blogs/containers-vs-vms/

• Question 298:

  Fault tolerant design allows a host to overcome a single HBA failure through:

  A. clustering
  B. UTA pairing
  C. multipathing
  D. NIC teaming
  A. clustering

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  Explanation

  http://www.ques10.com/p/2619/write-short-note-on-failure-analysis/

• Question 299:

  A cloud engineer is responsible for a legacy web application that runs on an on-premises VM environment. The VM environment is approaching end of life. The engineer needs to migrate the web application to the cloud as quickly as possible

  because the VM environment has the following limitations:

  The VM environment has a single IOGB disk.

  The VM environment still uses 10Mbps, which leaves a 100Mbps WAN connection underutilized.

  No installation media is available.

  Which of the following is the best way to migrate the web application to the cloud?

  A. Use the VM import connector to import the VM into the cloud.
  B. Use import/export to import the VM as a snapshot and attach it to a cloud instance.
  C. Use REST APIs to import an image of the VM into the cloud.
  D. Use object storage to create a backup of the VM and restore data into the cloud instance.
  A. Use the VM import connector to import the VM into the cloud.

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  Explanation

  A VM import connector is a tool that allows you to import virtual machines from your on-premises environment into the cloud using a graphical user interface. This is the fastest and easiest way to migrate a legacy web application without requiring installation media or changing the configuration of the VM. The VM import connector can also handle the disk size and network bandwidth limitations of the on-premises VM environment.

  References: EC2 VM Import Connector | AWS News Blog, Import a VMware Virtual Machine to Oracle Cloud Infrastructure, CompTIA Cloud+ Certification Exam Objectives, Domain 2.0: Deployment, Objective 2.1: Given a scenario, execute and implement solutions using appropriate cloud migration tools and methods.

• Question 300:

  A cloud administrator recently noticed that a number of files stored at a SaaS provider's file-sharing service were deleted. As part of the root cause analysis, the administrator noticed the parent folder permissions were modified last week. The administrator then used a test user account and determined the permissions on the files allowed everyone to have write access.

  Which of the following is the best step for the administrator to take NEXT?

  A. Identify the changes to the file-sharing service and document
  B. Acquire a third-party DLP solution to implement and manage access
  C. Test the current access permissions to the file-sharing service
  D. Define and configure the proper permissions for the file-sharing service
  D. Define and configure the proper permissions for the file-sharing service

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  Explanation

  Permissions are rules or settings that determine what actions users can perform on files or resources in a system or service. Permissions can help control and restrict access to files or resources based on various criteria, such as user identity, role, group, or ownership. Defining and configuring the proper permissions for the file-sharing service is the best step for the administrator to take next after discovering that sales group members can access the financial application due to being part of the finance group and having write access to all files in the file-sharing service. Defining and configuring the proper permissions can prevent unauthorized or accidental access or modification of files or resources by limiting or granting access based on specific criteria.

  References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7

  https://learn.microsoft.com/en-us/iis/web-hosting/configuring-servers-in-the-windows-web-platform/configuring-share-and-ntfs-permissions