CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 371:

  Which of the following is the best type of database for storing different types of unstructured data that may change frequently?

  A. Vector
  B. Relational
  C. Non-relational
  D. Graph
  C. Non-relational

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  Explanation

  Non-relational (NoSQL) databases are best for storing different types of unstructured data that may change frequently. They are designed to handle a wide variety of data types and are not constrained by the fixed schema of relational databases, making them more flexible and scalable for unstructured data.

  References:

  The distinction between relational and non-relational databases and their use cases is part of the foundational knowledge for cloud databases discussed in the CompTIA Cloud+ certification.

• Question 372:

  Which of the following network types allows the addition of new features through the use of network function virtualization?

  A. Local area network
  B. Wide area network
  C. Storage area network
  D. Software-defined network
  D. Software-defined network

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  Explanation

  A Software-Defined Network (SDN) is a network approach that allows the addition of new features through software configurations rather than hardware updates, making use of network function virtualization (NFV).

  NFV decouples network functions from proprietary hardware appliances, so they can run in software, which aligns with the flexibility offered by SDN.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-

  004. - Chapter on Network Management

• Question 373:

  Which of the following best describes a system that keeps all different versions of a software separate from each other while giving access to all of the versions?

  A. Code documentation
  B. Code control
  C. Code repository
  D. Code versioning
  D. Code versioning

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  Explanation

  A system that keeps all different versions of software separate from each other while providing access to all of the versions is best described by Code versioning. Code versioning systems, such as Git, allow developers to keep track of changes, revert to previous states, and manage multiple versions of codebases.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson

• Question 374:

  A systems administrator is configuring backups on a VM and needs the process to run as quickly as possible, reducing the bandwidth on the network during all times from Monday through Saturday. In the event of data corruption, the management team expects the mean time to recovery to be as low as possible.

  Which of the following backup methods can the administrator use to accomplish these goals?

  A. Incremental backup daily to the cloud
  B. Full backup on Sunday and incremental backups on all other days of the week
  C. Differential backup daily to the cloud
  D. Incremental backups during off-hours on Monday, Wednesday, and Friday
  B. Full backup on Sunday and incremental backups on all other days of the week

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  Explanation

  To achieve a quick backup process and reduce bandwidth use, the administrator should perform a Full backup on Sunday and incremental backups on all other days of the week. This method ensures that only the changes made since the last full backup are copied, reducing the amount of data that needs to be transferred each time, and thus the time and bandwidth required.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson

• Question 375:

  A company recently migrated to a public cloud provider. The company's computer incident response team needs to configure native cloud services tor detailed logging.

  Which of the following should the team implement on each cloud service to support root cause analysis of past events? {Select two).

  A. Log retention
  B. Tracing
  C. Log aggregation
  D. Log rotation
  E. Hashing
  F. Encryption
  A. Log retention
  C. Log aggregation

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  Explanation

  For detailed logging to support root cause analysis of past events, the team should implement log retention to ensure logs are kept for the necessary amount of time and log aggregation to compile logs from various sources for easier analysis and correlation.

  References:

  Log management practices, including retention and aggregation, are part of the cloud management strategies covered in the CompTIA Cloud+ curriculum, particularly in the domain of technical operations.

• Question 376:

  A company wants to use a solution that will allow for quick recovery from ransomware attacks, as well as intentional and unintentional attacks on data integrity and availability.

  Which of the following should the company implement that will minimize administrative overhead?

  A. Object versioning
  B. Data replication
  C. Off-site backups
  D. Volume snapshots
  D. Volume snapshots

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  Explanation

  Implementing volume snapshots is an effective solution for quick recovery from ransomware attacks and protecting data integrity and availability. Snapshots capture the state of a storage volume at a point in time and can be used to restore data quickly with minimal administrative overhead.

  References:

  Data protection strategies like volume snapshots are discussed under cloud data management and protection in the CompTIA Cloud+ objectives.

• Question 377:

  During project initiation, a project manager must identify goals and deliverables that align with cost and schedule constraints.

  Which artifact best supports this requirement?

  A. Work breakdown structure
  B. Change log
  C. Project success criteria
  D. Milestone chart
  C. Project success criteria

• Question 378:

  An engineer receives information about an application issue and reviews the events. The engineer decides to horizontally scale the application server.

  Which of the following would most likely explain the engineer's decision?

  A. The web server reached the maximum number of TCP sessions.
  B. Ephemeral storage for the server OS reached 90%.
  C. A runtime error in the application logs indicated a bug in the application.
  D. The application server averages 50% CPU and spiked to 90% CPU.
  A. The web server reached the maximum number of TCP sessions.

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  Explanation

  Reaching the maximum number of TCP sessions indicates the server can no longer handle additional client connections. This is a classic indicator that the workload requires horizontal scaling to add more servers and increase connection-handling capacity.

• Question 379:

  A company wants to create a few additional VDIs so support vendors and contractors have a secure method to access the company's cloud environment. When a cloud administrator attempts to create the additional instances in the new locations, the operation is successful in some locations but fails in others.

  Which of the following is the most likely reason for this failure?

  A. Partial service outages
  B. Regional service availability
  C. Service quotas
  D. Deprecation of functionality
  C. Service quotas

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  Explanation

  If a cloud administrator can create additional instances in some locations but not others, the most likely reason for this failure is service quotas. Cloud providers often have quotas on the number of resources that can be created, and these limits can vary by region.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Resource Management

• Question 380:

  A cloud engineer is troubleshooting a connectivity issue. The application server with IP 192.168.1.10 in one subnet is not connecting to the MySQL database server with IP 192.168.2 20 in a different subnet. The cloud engineer reviews the following information: Application Server Stateful Firewall

  

  

  Which of the following should the cloud engineer address lo fix the communication issue?

  A. The Application Server Stateful Firewall
  B. The Application Server Subnet Routing Table
  C. The MySQL Server Stateful Firewall
  D. The MySQL Server Subnet Routing Table
  C. The MySQL Server Stateful Firewall

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  Explanation

  The connectivity issue between the application server and the MySQL database server in different subnets is likely due to the MySQL Server Stateful Firewall's inbound rules. The application server has an IP of 192.168.1.10, but the MySQL server's inbound rules only permit IP 192.168.1.10/32 on port 3306. This rule allows only a single IP address (192.168.1.10) to communicate on port 3306, which is typical for MySQL.

  However, if the application server's IP is not 192.168.1.10 or the application is trying to communicate on a different port, it would be blocked. To fix the communication issue, the cloud engineer should address the inbound rules on the MySQL Server Stateful Firewall to ensure that the application server's IP address and therequired port are allowed.

  References:

  Based on the information provided in the question and general networking principles.