CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 381:

  An organization is concerned that its IT help desk is receiving too many calls about password resets for various internal and external applications. The organization implements a SSO solution.

  Which of the following technologies should the cloud architect at the organization recommend implementing?

  A. SAML
  B. LDAP
  C. Kerberos
  D. MFA
  A. SAML

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  Explanation

  SAML (Security Assertion Markup Language) enables Single Sign-On (SSO) by allowing authentication and authorization data to be exchanged between an identity provider and service providers, reducing the need for multiple passwords and password reset calls.

• Question 382:

  Which of the following is a difference between a SAN and a NAS?

  A. A SAN works only with fiber-based networks.
  B. A SAN works with any Ethernet-based network.
  C. A NAS uses a faster protocol than a SAN
  D. A NAS uses a slower protocol than a SAN.
  D. A NAS uses a slower protocol than a SAN.

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  Explanation

  A NAS (Network Attached Storage) typically uses file-level protocols such as NFS or SMB, which are generally considered slower and less efficient than the block-level protocols used by SANs (Storage Area Networks), such as iSCSI or Fibre Channel. SANs are designed for high performance and low latency, making them more suitable for applications requiring fast and efficient storage access.

• Question 383:

  A company that requires full administrative control at the OS level is considering the use of public cloud services.

  Which of the following service models would BEST fit the company's requirements?

  A. SaaS
  B. DBaaS
  C. PaaS
  D. laaS
  D. laaS

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  Explanation

  laaS (Infrastructure as a Service) is a public cloud service model that provides access to fundamental compute, network, and storage resources on demand over the public Internet or through dedicated connections. Customers can provision and configure these resources according to their needs, and they have full administrative control at the OS level. This means that customers can install, update, and manage any software or applications they want on the cloud servers, as well as apply their own security and compliance policies. laaS is suitable for companies that require high flexibility and customization of their cloud infrastructure, as well as scalability and cost-efficiency.

• Question 384:

  An administrator is creating a cron job that shuts down the virtual machines at night to save on costs.

  Which of the following is the best way to achieve this task?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  C. Option C

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  Explanation

  Option C is the correct script for shutting down virtual machines that are currently running. It iterates through a list of VMs, checks if the status of each VM is 'running', and if so, proceeds to shut down the VM.

  The script then prints a message stating that the VM has been stopped. This approach ensures that only VMs that are actively running are targeted for shutdown, optimizing resource utilization and cost savings.

• Question 385:

  Which of the following is used to detect signals and measure physical properties, such as the temperature of the human body?

  A. Beacon
  B. Transmission protocols
  C. Sensors
  D. Gateways
  C. Sensors

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  Explanation

  Sensors are used to detect signals and measure physical properties, such as temperature. They are devices that respond to a physical stimulus (like heat, light, sound, pressure, magnetism, or a particular motion) and transmit a resulting impulse for detection and measurement.

  References:

  The use of sensors in cloud environments, particularly in IoT (Internet of Things) applications, is included in the technical domains of the CompTIA Cloud+ material.

• Question 386:

  A cloud solution needs to be replaced without interruptions. The replacement process can be completed in phases, but the cost should be kept as low as possible.

  Which of the following is the best strategy to implement?

  A. Blue-green
  B. Rolling
  C. In-place
  D. Canary
  B. Rolling

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  Explanation

  A rolling strategy is the best to implement when needing to replace a cloud solution without interruptions and keeping costs low. This approach updates or replaces parts of the system gradually with minimal downtime and allows for a phased implementation.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Deployment and Provisioning

• Question 387:

  A cloud administrator needs to distribute workloads across remote data centers for redundancy reasons.

  Which of the following deployment strategies would eliminate downtime, accelerate deployment, and remain cost efficient?

  A. In-place
  B. Rolling
  C. Blue-green
  D. Canary
  C. Blue-green

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  Explanation

  Blue-green deployment is the strategy that can eliminate downtime, accelerate deployment, and remain cost-efficient. It involves running two identical production environments, only one of which is live at any given time (blue or green). When it's time to deploy, the new version is released to the inactive environment (green), which is then thoroughly tested. Once ready, the traffic is switched over, making the green environment live.

  References:

  Deployment strategies and their impact on operations are a significant topic within the CompTIA Cloud+ examination objectives.

• Question 388:

  Which of the following best explains the concept of migrating from on premises to the cloud?

  A. The configuration of a dedicated pipeline to transfer content to a remote location
  B. The creation of virtual instances in an external provider to transfer operations of selected servers into a new. remotely managed environment
  C. The physical transportation, installation, and configuration of company IT equipment in a cloud services provider's facility
  D. The extension of company IT infrastructure to a managed service provider
  B. The creation of virtual instances in an external provider to transfer operations of selected servers into a new. remotely managed environment

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  Explanation

  Migrating from on-premises to the cloud generally involves creating virtual instances in an external provider's environment and transferring the operations of selected servers to this new, remotely managed setup. This process allows organizations to leverage the cloud provider's resources and services.

  References:

  The migration process and strategies are topics included in the Business Principles of Cloud Environments within the CompTIA Cloud+ curriculum.

• Question 389:

  A cloud engineering team recently built a new website to be hosted on a cloud server. However, the website is not loading. The team runs a troubleshooting command that provides the following output:

  

  Which of the following records would the team most likely add to resolve this issue?

  A. MX
  B. A
  C. PTR
  D. SRV
  B. A

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  Explanation

  The DIG output shows that the queried domain has no A record returned. Adding an A record is required to map the domain name to the server's IP address so the website can load.

• Question 390:

  A security analyst receives the following security alert: The following VM (vm_1) is exhibiting signs increased CPU usage over a 24-hour period. Please consider increasing the allocated CPU cores.

  After additional investigation, the analyst identifies a process consuming 98% CPU utilization on the VM.

  The analyst attempts to stop the process, but the process continues.

  Which of the following is the most likely cause of this security alert?

  A. Hashing
  B. Cryptojacking
  C. Phishing
  D. On-path attack
  B. Cryptojacking

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  Explanation

  Cryptojacking occurs when unauthorized cryptocurrency-mining software runs on a system and consumes significant CPU resources. A process continuously using 98% of CPU capacity and restarting or persisting after attempts to stop it is a common indicator of cryptojacking malware designed to maximize mining performance while resisting termination.