CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 241:

  A cloud administrator recently deployed an update to the network drivers of several servers. Following the update, one of the servers no longer responds to remote login requests. The cloud administrator investigates the issue and gathers the following information:

  1.The cloud management console shows the VM is running and the CPU and memory utilization is at or near 0%.

  2.The cloud management console does not show an IP address for that server. A DNS lookup shows the hostname resolves to an IP address.

  3.The server is a member of the same security group as the others.

  4.The cloud administrator is able to log in remotely to the other servers without issue.

  Which of the following is the MOST likely cause of the server being unavailable?

  A. The network driver updates did not apply successfully, and the interface is in a down state.
  B. The ACL policy for the server was updated as part of the server reboot, preventing login access.
  C. The server was assigned a new IP address, and DNS entry for the server name was not updated.
  D. The update caused an increase in the output to the logs, and the server is too busy to respond.
  A. The network driver updates did not apply successfully, and the interface is in a down state.

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  Explanation

• Question 242:

  A cloud administrator is provisioning five VMs, each with a minimum of 8GB of RAM and a varying load throughout the day. The hypervisor has only 32GB of RAM. Which of the following features should the administrator use?

  A. Memory overcommitment
  B. Thin-provisioned model
  C. Process scheduling
  D. Hyperthreading
  C. Process scheduling

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  Explanation

• Question 243:

  An organization has a web-server farm. Which of the following solutions should be implemented to obtain efficient distribution of requests to theservers?

  A. A clustered web server infrastructure
  B. A load-balancing appliance
  C. A containerized application
  D. Distribution of web servers across different regions and zones
  B. A load-balancing appliance

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  Explanation

  A web-server farm is a group of web servers that work together to provide high availability and scalability for web applications1. A web-server farm can handle a large number of requests from clients by distributing the workload among the

  servers. A load-balancing appliance is a device that sits between the clients and the web servers and distributes the incoming requests to the servers based on a predefined algorithm2. A load-balancing appliance can improve the

  performance, reliability, and security of a web- server farm by providing the following benefits2:

  Load balancing: It ensures that no single server is overloaded and that all servers are utilized efficiently.

  Failover: It detects and redirects requests from failed or unavailable servers to healthy ones.

  Health monitoring: It periodically checks the status and performance of the servers and reports any issues or anomalies.

  SSL offloading: It terminates the SSL connections from the clients and forwards the requests to the servers in plain text, reducing the encryption overhead on the servers. Caching: It stores frequently requested content in its memory and

  serves it to the clients, reducing the network traffic and load on the servers. A clustered web server infrastructure is a configuration where multiple web servers are connected to a shared storage device and appear as a single logical server to

  the clients3. A clustered web server infrastructure can provide high availability and fault tolerance for web applications, but it does not provide load balancing or scalability.

  Therefore, option A is incorrect.

  A containerized application is an application that is packaged with its dependencies and runtime environment in a lightweight and portable unit called a container. A containerized application can run on any platform that supports container

  technology, such as Docker or Kubernetes. A containerized application can provide portability, consistency, and isolation for web applications, but it does not provide load balancing or scalability by itself.

  Therefore, option C is incorrect.

  Distribution of web servers across different regions and zones is a strategy that involves deploying web servers in multiple geographic locations to serve clients from different areas. Distribution of web servers across different regions and

  zones can provide low latency, high availability, and disaster recovery for web applications, but it does not provide load balancing or scalability within each region or zone. Therefore, option D is incorrect.

• Question 244:

  Which of the following is relevant to capacity planning in a SaaS environment?

  A. Licensing
  B. A hypervisor
  C. Clustering
  D. Scalability
  D. Scalability

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  Explanation

  Scalability is the ability of a system or service to handle increased workload or demand by adding or removing resources or capacity as needed. Scalability is relevant to capacity planning in a SaaS environment, as it can affect the performance, availability, and cost of the SaaS service. Scalability can help optimize the capacity planning process by ensuring that the SaaS service has enough resources or capacity to meet the current and future needs of the customers without wasting or underutilizing resources or capacity.

  References: CompTIA Cloud+ Certification Exam Objectives, page 12, section 2.2

• Question 245:

  A systems administrator needs to implement a security control that will prevent unknown malware from infecting a system in case the antivirus solution fails. Which of the following should the administrator implement?

  A. A software whitelist
  B. File integrity monitoring
  C. A host-based IDS
  D. Hardened baselines
  A. A software whitelist

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  Explanation

• Question 246:

  A web consultancy group currently works in an isolated development environment. The group uses this environment for the creation of the final solution, but also for showcasing it to customers, before commissioning the sites in production. Recently, customers of newly commissioned sites have reported they are not receiving the final product shown by the group, and the website is performing in unexpected ways. Which of the following additional environments should the group adopt and include in its process?

  A. Provide each web consultant a local environment on their device.
  B. Require each customer to have a blue-green environment.
  C. Leverage a staging environment that is tightly controlled for showcasing.
  D. Initiate a disaster recovery environment to fail to in the event of reported issues.
  C. Leverage a staging environment that is tightly controlled for showcasing.

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  Explanation

  A staging environment is a type of development environment that is used to test and demonstrate the final product before deploying it to the production environment. A staging environment can help the web consultancy group avoid the issues of delivering a different or faulty product to the customers, as it can ensure that the product is fully functional, compatible, and secure. A staging environment can also help the group showcase the product to the customers in a realistic and controlled way, as it can mimic the production environment and avoid any interference from other development activities. A staging environment can be leveraged by using cloud services that allow for easy provisioning, scaling, and deployment of web applications

• Question 247:

  Which of the following are advantages of a public cloud? (Choose two.)

  A. Full control of hardware
  B. Reduced monthly costs
  C. Decreased network latency
  D. Pay as you use
  E. Availability of self-service
  F. More secure data
  B. Reduced monthly costs
  D. Pay as you use

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  Explanation

  https://services.global.ntt/ja-jp/insights/blog/5-benefits-of-public-cloud-computing

• Question 248:

  A corporate jump server located in the public cloud was terminated overnight because the underlying hardware failed. The next morning, developers were unable to reach environments. Which of the following is the best way to remediate the issue?

  A. Setting up a virtual load balancer in front of a jump server
  B. Provisioning and configuring a new jump server via a cloud console
  C. Recommending developers use their laptops for development
  D. Configuring autoscaling with a minimum number of jump servers set to one
  B. Provisioning and configuring a new jump server via a cloud console

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  Explanation

• Question 249:

  A cloud administrator is configuring a CDN for an organization's website to improve performance for users in remote regions. Which of the following CDN features will help achieve this goal?

  A. Compression of content.
  B. Content replication to edge locations.
  C. Dynamic request routing.
  D. Content deduplication.
  B. Content replication to edge locations.

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  Explanation

  B. Content replication to edge locations: By replicating content to servers closer to end users, CDNs reduce latency and improve website performance for remote users.

  References:

  CompTIA Cloud+ CV0-003 Study Guide Chapter 13: Cloud Networking Solutions.

• Question 250:

  A cloud administrator receives a billing report and notices the IT department billing has been the same for the last few months, despite the deployment of ten new instances for the SIEM solution. Which of the following is the most likely cause of the issue?

  A. Inconsistent hostnames.
  B. Misconfigured VM names.
  C. Incomplete provisioning tasks.
  D. Incorrect tagging.
  D. Incorrect tagging.

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  Explanation

  D. Incorrect tagging: Many cloud providers use tags for billing and tracking resource usage. Incorrect or missing tags can prevent the new instances from being associated with the correct billing group, leading to inaccurate billing.

  References:

  CompTIA Cloud+ CV0-003 Study Guide Chapter 17: Operation of a Cloud Environment.