CompTIA CompTIA Certifications CV0-003 Questions & Answers

• Question 91:

  A company recently adjusted its load-balancer encryption policies to support only TLSv1.3. Soon after the change was made, several customers began reporting they could not access their website. Which of the following is the MOST likely cause of the issue?

  A. The certificate is expired.

  B. There is a mismatch between the key and the certificate.

  C. The customers are using an unsupported OS.

  D. The load balancer was misconfigured.

  Correct Answer: C

• Question 92:

  A cloud architect is reviewing the design for a new cloud-based ERP solution. The solution consists of eight servers with a single network interface. The allocated IP range is 172.16.0.0/28. One of the requirements of the solution is that it must be able to handle the potential addition of 16 new servers to the environment. Because of the complexity of the firewall and related ACL requirements, these new servers will need to be in the same network range. Which of the following changes would allow for the potential server addition?

  A. Change the IP address range to use a 10.0.0.0 address.

  B. Change the server template to add network interfaces.

  C. Change the subnet mask to use a 255.255.255.128 range.

  D. Change the server scaling configuration to increase the maximum limit.

  Correct Answer: C

• Question 93:

  A systems administrator is performing an OS upgrade on a production VM. Which of the following actions should the administrator take before the upgrade to ensure the FASTEST recovery of the system in case the upgrade fails in an unrecoverable way?

  A. Submit the upgrade to the CAB.

  B. Perform a full backup.

  C. Take a snapshot of the system.

  D. Test the upgrade in a preproduction environment.

  Correct Answer: C

• Question 94:

  Which of the following definitions of serverless computing BEST explains how it is different from using VMs?

  A. Serverless computing is a cloud-hosting service that utilizes infrastructure that is fully managed by the CSP.

  B. Serverless computing uses predictable billing and offers lower costs than VM compute services.

  C. Serverless computing is a scalable, highly available cloud service that uses SDN technologies.

  D. Serverless computing allows developers to focus on writing code and organizations to focus on business.

  Correct Answer: D

  This is the best definition of serverless computing that explains how it is different from using VMs (Virtual Machines). Serverless computing is a cloud service model that provides customers with a platform to run applications or functions

  without having to manage or provision any underlying infrastructure or resources, such as servers, storage, network, OS, etc. Serverless computing is different from using VMs in the following ways:

  Serverless computing allows developers to focus on writing code and organizations to focus on business, rather than spending time and effort on managing or scaling VMs or other infrastructure components. Serverless computing is event-

  driven and pay-per-use, which means that applications or functions are executed only when triggered by a specific event or request, and customers are charged only for the resources consumed during the execution time.

  Serverless computing is more scalable and flexible than using VMs, as it can automatically adjust the capacity and performance of applications or functions according to demand or workload, without requiring any manual intervention or

  configuration.

• Question 95:

  A company wants to move to a multicloud environment and utilize the technology that provides the most portability. Which of the following technology solutions would BEST meet the company's needs?

  A. Bootstrap

  B. Virtual machines

  C. Clusters

  D. Containers

  Correct Answer: D

  The technology that provides the most portability for a multicloud environment is containers. Containers are units of software that package an application and its dependencies into a standardized and isolated environment that can run on any platform or cloud service. Containers are lightweight, scalable, and portable, as they do not depend on the underlying infrastructure or operating system. Containers can also be managed by orchestration tools that automate the deployment, scaling, and networking of containerized applications across multiple clouds. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 1.0 Configuration and Deployment, Objective 1.3 Given a scenario involving integration between multiple cloud environments, select an appropriate solution design.

• Question 96:

  A systems administrator wants to restrict access to a set of sensitive files to a specific group of users. Which of the following will achieve the objective?

  A. Add audit rules on the server

  B. Configure data loss prevention in the environment

  C. Change tine permissions and ownership of the files

  D. Implement a HIPS solution on the host

  Correct Answer: C

  The best way to restrict access to a set of sensitive files to a specific group of users is to change the file permissions and ownership of the files. File permissions and ownership are attributes that determine who can read, write, execute, or modify the files. By changing the file permissions and ownership, the systems administrator can grant or deny access to the files based on the user identity or group membership. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.3 Given a scenario, implement appropriate access control measures for a cloud environment.

• Question 97:

  A systems administrator is diagnosing performance issues on a web application. The web application sends thousands of extremely complex SQL queries to a database server, which has trouble retrieving the information in time. The administrator checks the database server and notes the following resource utilization:

  1.

  CPU: 64%

  2.

  RAM: 97%

  3.

  Network throughput: 384,100Kbps.

  4.

  Disk throughput: 382,700Kbps

  The administrator also looks at the storage for the database server and notices it is consistently near its OPS limit. Which of the following will BEST resolve these performance issues?

  A. Increase CPU resources on the database server.

  B. Increase caching on the database server.

  C. Put the storage and the database on the same VLAN.

  D. Enable compression on storage traffic.

  E. Enable deduplication on the storage appliance.

  Correct Answer: B

  The performance issue is caused by the high demand of complex SQL queries on the database server, which consumes a lot of RAM and disk throughput. Increasing caching on the database server would reduce the number of disk reads and writes, as well as improve the response time of the queries by storing frequently accessed data in memory. This would be the best solution to resolve the performance issue. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 4.0 Troubleshooting, Objective 4.3 Given a scenario, troubleshoot capacity issues within a cloud environment.

• Question 98:

  A systems administrator is examining a managed hosting agreement and wants to determine how much data would be lost if a server had to be restored from backups. To which of the following metrics should the administrator refer?

  A. RTO

  B. MTBF

  C. RPO

  D. MTTR

  Correct Answer: C

  RPO (Recovery Point Objective) is the metric that the administrator should refer to determine how much data would be lost if a server had to be restored from backups. RPO is a metric that measures how much data can be lost or how far back in time a recovery point can be without causing significant impact or damage. RPO can help to determine how much data would be lost by comparing the time of the disruption or disaster with the time of the last backup or snapshot. RPO can also help to determine how frequently backups or snapshots should be performed to minimize data loss.

• Question 99:

  After initial stress testing showed that a platform performed well with the specification of a single 32 vCPU node, which of the following will provide the desired service with the LOWEST cost and downtime?

  A. One 32 vCPU node with CDN caching

  B. Two 8 vCPU nodes with load balancing

  C. Three to six 8 vCPU nodes autoscaling group

  D. Four 8 vCPU nodes with DNS round robin

  Correct Answer: D

• Question 100:

  A company is considering consolidating a number of physical machines into a virtual infrastructure that will be located at its main office. The company has the following requirements:

  1.

  High-performance VMs

  2.

  More secure

  3.

  Has system independence

  Which of the following is the BEST platform for the company to use?

  A. Type 1 hypervisor

  B. Type 2 hypervisor

  C. Software application virtualization

  D. Remote dedicated hosting

  Correct Answer: A