CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 321:

  A developer wants to use an environment that has two sets of servers, with one active and one passive at any time. When a new version of the application is ready, it will be installed to the passive servers, which will then become active. Which of the following environment types BEST describes these two sets of servers?

  A. Disaster recovery
  B. Blue-green
  C. Development
  D. Staging
  B. Blue-green

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  Explanation

• Question 322:

  A technician just received the lessons learned from some recent data that was lost due to an on-premises file-server crash. The action point is to change the backup strategy to minimize manual intervention. Which of the following is the BEST approach for the technician to implement?

  A. Backup as a service
  B. RAID 1
  C. Long-term storage
  D. New backup devices
  A. Backup as a service

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  Explanation

  Backup as a service (BaaS) is the best approach for changing the backup strategy to minimize manual intervention after a data loss due to an on-premises file-server crash. BaaS is a cloud-based service that provides backup and recovery solutions for customers' data and systems. BaaS can automate and simplify backup processes by using cloud storage, encryption, deduplication, compression, scheduling, etc., without requiring customers to purchase or maintain backup hardware or software.

• Question 323:

  A systems administrator adds servers to a round-robin, load-balanced pool, and then starts receiving reports of the website being intermittently unavailable. Which of the following is the MOST likely cause of the issue?

  A. The network is being saturated.
  B. The load balancer is being overwhelmed.
  C. New web nodes are not operational.
  D. The API version is incompatible.
  E. There are time synchronization issues.
  C. New web nodes are not operational.

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  Explanation

  New web nodes are not operational is the most likely cause of the issue of website being intermittently unavailable after adding servers to a round-robin, load- balanced pool. A round-robin, load-balanced pool is a method of distributing network traffic evenly and sequentially among multiple servers or nodes that provide the same service or function. A round-robin, load-balanced pool can help to improve performance, availability, and scalability of network applications or services by ensuring that no server or node is overloaded or underutilized. New web nodes are not operational if they are not configured properly or functioning correctly to provide web service or function. New web nodes are not operational can cause website being intermittently unavailable by disrupting the round- robin, load-balanced pool and creating inconsistency or unreliability in web service or function.

• Question 324:

  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 325:

  A cloud administrator set up a link between the private and public cloud through a VPN tunnel. As part of the migration, a large set of files will be copied. Which of the following network ports are required from a security perspective?

  A. 22, 53, 445
  B. 22, 443, 445
  C. 25, 123, 443
  D. 137, 139, 445
  B. 22, 443, 445

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  Explanation

  These are the network ports that are required from a security perspective to copy a large set of files between the private and public cloud through a VPN tunnel. A VPN (Virtual Private Network) tunnel is a secure and encrypted connection that allows data to be transferred between two networks or locations over the public internet. To copy files between the private and public cloud, the following ports are needed: Port 22: This is the port used by SSH (Secure Shell) protocol, which is a method of remotely accessing and managing cloud resources or systems using a command- line interface. SSH can also be used to securely transfer files using SCP (Secure Copy Protocol) or SFTP (SSH File Transfer Protocol). Port 443: This is the port used by HTTPS (Hypertext Transfer Protocol Secure), which is a protocol that encrypts and secures web traffic. HTTPS can also be used to transfer files using web browsers or tools such as curl or wget. Port 445: This is the port used by SMB (Server Message Block) protocol, which is a protocol that allows file sharing and access over a network. SMB can also be used to transfer files using tools such as robocopy or rsync.

• Question 326:

  Which of the following is a best practice used in relation to MTBF?

  A. Determine backup schedule based on uptime requirements
  B. Proactively replace components before they fail
  C. Determine downtime to perform a system recovery
  D. Reactively replace components after failure
  B. Proactively replace components before they fail

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  Explanation

• Question 327:

  A cloud administrator is assigned to establish a connection between the on-premises data center and the new CSP infrastructure. The connection between the two locations must be secure at all times and provide service for all users inside the organization. Low latency is also required to improve performance during data transfer operations. Which of the following would BEST meet these requirements?

  A. A VPC peering configuration
  B. An IPSec tunnel
  C. An MPLS connection
  D. A point-to-site VPN
  B. An IPSec tunnel

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  Explanation

  An IPSec tunnel is what would best meet the requirements of establishing a connection between the on-premises data center and the new CSP infrastructure that is secure at all times and provides service for all users inside the organization with low latency. IPSec (Internet Protocol Security) is a protocol that encrypts and secures network traffic over IP networks. IPSec tunnel is a mode of IPSec that creates a virtual private network (VPN) tunnel between two endpoints, such as routers, firewalls, gateways, etc., and encrypts and secures all traffic that passes through it. An IPSec tunnel can meet the requirements by providing: Security: An IPSec tunnel can protect network traffic from interception, modification, spoofing, etc., by using encryption, authentication, integrity, etc., mechanisms. Service: An IPSec tunnel can provide service for all users inside the organization by allowing them to access and use network resources or services on both ends of the tunnel, regardless of their physical location. Low latency: An IPSec tunnel can provide low latency by reducing the number of hops or devices that network traffic has to pass through between the endpoints of the tunnel.

• Question 328:

  A company wants to check its infrastructure and application for security issues regularly. Which of the following should the company implement?

  A. Performance testing
  B. Penetration testing
  C. Vulnerability testing
  D. Regression testing
  C. Vulnerability testing

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  Explanation

  Vulnerability testing is a type of testing that identifies and evaluates the weaknesses or flaws in a system or application that could be exploited by attackers. Vulnerability testing can help check the infrastructure and application for security issues regularly, as it can reveal the potential risks and exposures that may compromise the confidentiality, integrity, or availability of the system or application. Vulnerability testing can also help remediate or mitigate the vulnerabilities by providing recommendations or solutions to fix or reduce them.

  References: CompTIA Cloud+ Certification Exam Objectives, page 19, section 4.1

  https://pure.security/services/technical-assurance/external-penetration-testing/

• Question 329:

  A company is utilizing a private cloud solution that is hosted within its datacenter. The company wants to launch a new business application, which requires the resources below:

  

  The current private cloud has 30 vCPUs and 512GB RAM available. The company is looking for a quick solution to launch this application, with expected maximum sessions to be close to 24,000 at launch and an average of approximately

  5,000 sessions.

  Which of the following solutions would help the company accommodate the new workload in the SHORTEST amount of time and with the maximum financial benefits?

  A. Configure auto-scaling within the private cloud
  B. Set up cloud bursting for the additional resources
  C. Migrate all workloads to a public cloud provider
  D. Add more capacity to the private cloud
  B. Set up cloud bursting for the additional resources

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  Explanation

  Cloud Bursting can be used for both compute and storage. This question is about compute capability. "Compute Bursting" unleashes the high-performance compute capabilities of the cloud for processing locally created datasets. (reference:

  https://www.ctera.com/it-initiatives/cloud-bursting/)

  https://azure.microsoft.com/en-us/overview/what-is-cloud-bursting/

• Question 330:

  A company is using an IaaS environment. Which of the following licensing models would BEST suit the organization from a financial perspective to implement scaling?

  A. Subscription
  B. Volume-based
  C. Per user
  D. Socket-based
  D. Socket-based

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  Explanation

  https://www.fingent.com/blog/cloud-service-models-saas-iaas-paas-choose-the-right-one-for-your-business/