CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 181:

  A systems administrator would like to reduce the network delay between two servers.

  Which of the following will reduce the network delay without taxing other system resources?

  A. Decrease the MTU size on both servers
  B. Adjust the CPU resources on both servers
  C. Enable compression between the servers
  D. Configure a VPN tunnel between the servers
  A. Decrease the MTU size on both servers

  ---

  Explanation

  The maximum transmission unit (MTU) is the largest size of a packet or frame that can be sent over a network. Decreasing the MTU size on both servers can reduce the network delay between them, as it can reduce the fragmentation and reassembly of packets, improve the transmission efficiency, and avoid packet loss or errors. Decreasing the MTU size can also avoid taxing other system resources, as it does not require additional CPU, memory, or disk resources.

  References: CompTIA Cloud+ Certification Exam Objectives, page 16, section 3.2

  https://cseweb.ucsd.edu/~calder/papers/HPDC-01-DynComp.pdf

• Question 182:

  A company uses multiple SaaS-based cloud applications. All the applications require authentication upon access. An administrator has been asked to address this issue and enhance security. Which of the following technologies would be the BEST solution?

  A. Single sign-on
  B. Certificate authentication
  C. Federation
  D. Multifactor authentication
  D. Multifactor authentication

  ---

  Explanation

  https://en.wikipedia.org/wiki/Single_sign-on

• Question 183:

  A cloud solutions architect has received guidance to migrate an application from on premises to a public cloud. Which of the following requirements will help predict the operational expenditures in the cloud?

  A. Average resource consumption
  B. Maximum resource consumption
  C. Minimum resource consumption
  D. Actual hardware configuration
  A. Average resource consumption

  ---

  Explanation

  Understanding the average resource consumption of the application is essential for estimating the cost of running it in the cloud. By analyzing historical data or using monitoring tools, you can determine the average amount of CPU, memory, storage, and network resources the application uses over time. This data is crucial for selecting the right cloud instance types, storage options, and network configurations to meet performance requirements while optimizing costs.

• Question 184:

  An organization that currently stores a set of documents in the cloud is concerned about potential loss if these documents are accidentally deleted. Which of the following is the best way for the organization to quickly recover a lost file?

  A. Enabling deduplication on the cloud storage.
  B. Enabling versioning for the underlying cloud storage.
  C. Creating an identity and access management policy.
  D. Creating a single snapshot of the cloud storage.
  B. Enabling versioning for the underlying cloud storage.

  ---

  Explanation

  B. Enabling versioning for the underlying cloud storage: Versioning creates multiple versions of files, allowing administrators to restore previous versions when files are accidentally deleted or overwritten.

  References:

  CompTIA Cloud+ CV0-003 Study Guide Chapter 20: Backup and Restore Operations.

• Question 185:

  A cloud administrator configured a local cloud-resource pool lo offer 64GB of memory, 64 cores, and 640GB of storage. Thirty-two machines with identical resource allocations are started. but one machine is unable to handle requests. Which of the following is the MOST likely cause?

  A. Insufficient guest bandwidth
  B. Overwhelmed vCPU
  C. A storage error on the guest
  D. Incorrect VLAN assignment
  E. Inadequate memory allocation
  E. Inadequate memory allocation

  ---

  Explanation

• Question 186:

  A company that performs passive vulnerability scanning at its transit VPC has detected a vulnerability related to outdated web-server software on one of its public subnets. Which of the following can the company use to verify if this is a true positive with the least effort and cost? (Select two).

  A. A network-based scan
  B. An agent-based scan
  C. A port scan
  D. A red-team exercise
  E. A credentialed scan
  F. A blue-team exercise
  G. Unknown environment penetration testing
  A. A network-based scan
  E. A credentialed scan

  ---

  Explanation

• Question 187:

  A private IaaS administrator is receiving reports that all newly provisioned Linux VMs are running an earlier version of the OS than they should be. The administrator reviews the automation scripts to troubleshoot the issue and determines the

  scripts ran successfully.

  Which of the following is the MOST likely cause of the issue?

  A. API version incompatibility
  B. Misconfigured script account
  C. Wrong template selection
  D. Incorrect provisioning script indentation
  C. Wrong template selection

  ---

  Explanation

  The wrong template selection is the most likely cause of the issue of newly provisioned Linux VMs running an earlier version of OS than they should be in a private IaaS environment. A template is a preconfigured image or blueprint of a VM that contains an OS, applications, settings, etc., that can be used to create new VMs quickly and consistently. A template may have different versions or updates depending on when it was created or modified. If a template is selected incorrectly or not updated properly, it may result in creating VMs with an older or different version of OS than expected.

• Question 188:

  An administrator manages a file server that has a lot of users accessing and creating many files. As a result, the storage consumption is growing quickly. Which of the following would BEST control storage usage?

  A. Compression
  B. File permissions
  C. User quotas
  D. Access policies
  C. User quotas

  ---

  Explanation

  https://www.techtarget.com/searchstorage/Data-storage-management-What-is-it-and-why-is-it-important

• Question 189:

  Which of the following will mitigate the risk of users who have access to an instance modifying the system configurations?

  A. Implement whole-disk encryption
  B. Deploy the latest OS patches
  C. Deploy an anti-malware solution
  D. Implement mandatory access control
  D. Implement mandatory access control

  ---

  Explanation

  Mandatory access control (MAC) is a type of access control model that enforces strict security policies based on predefined rules and labels. MAC assigns security labels to subjects (users or processes) and objects (files or resources) and allows access only if the subject has the appropriate clearance and need-to-know for the object. MAC can mitigate the risk of users who have access to an instance modifying the system configurations, as it can prevent unauthorized or accidental changes to critical files or settings by restricting access based on predefined rules and labels.

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

• Question 190:

  A systems administrator is trying to reduce storage consumption. Which of the following file types would benefit the MOST from compression?

  A. System files
  B. User backups
  C. Relational database
  D. Mail database
  B. User backups

  ---

  Explanation

  User backups are the file type that would benefit the most from compression to reduce storage consumption. Compression is a process of reducing the size of data by removing redundant or unnecessary information or using algorithms to encode data more efficiently. Compression can save storage space and bandwidth, but it may also affect the quality or performance of data depending on the compression method and ratio. User backups are typically large files that contain various types of data, such as documents, images, videos, etc., that can be compressed without significant loss of quality or functionality.