CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 171:

  A technician is working with an American company that is using cloud services to provide video-based training for its customers. Recently, due to a surge in demand, customers in Europe are experiencing latency.

  Which of the following services should the technician deploy to eliminate the latency issue?

  A. Auto-scaling
  B. Cloud bursting
  C. A content delivery network
  D. A new cloud provider
  C. A content delivery network

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  Explanation

  https://www.cloudflare.com/learning/cdn/what-is-a-cdn/ "A content delivery network (CDN) refers to a geographically distributed group of servers which work together to provide fast delivery of Internet content."

• Question 172:

  A company recently acquired another company, and the human resources staff expects to see a 50% increase in usage for the employee benefits web portal once the employees from the acquired company receive access. The cloud administrator needs to assess whether the current web portal can handle the increased load. Which of the following should the cloud administrator do first?

  A. Increase CPU resources by 50% on the web portal.
  B. Review current monitoring logs to determine resource usage on the web portal.
  C. Create an autoscaling policy to expand the web portal environment dynamically.
  D. Provision additional servers to handle the expected increased usage.
  B. Review current monitoring logs to determine resource usage on the web portal.

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  Explanation

  B. Review current monitoring logs to determine resource usage on the web portal:

  Reviewing logs helps the administrator understand current resource utilization and identify whether the current setup can handle additional load before making changes.

  References:

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

• Question 173:

  A storage array that is used exclusively for datastores is being decommissioned, and a new array has been installed. Now the private cloud administrator needs to migrate the data. Which of the following migration methods would be the BEST to use?

  A. Conduct a V2V migration
  B. Perform a storage live migration
  C. Rsync the data between arrays
  D. Use a storage vendor migration appliance
  D. Use a storage vendor migration appliance

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  Explanation

• Question 174:

  A cloud administrator created four VLANs to autoscale the container environment. Two of the VLANs are on premises, while two VLANs are on a public cloud provider with a direct link between them. Firewalls are between the links with an additional subnet for communication, which is 192.168.5.0/24. The on-premises gateways are:

  192.168.1.1/24 192.168.2.1/24

  The cloud gateways are:

  192.168.3.1/24 192.168.4.1/24

  The orchestrator is unable to communicate with the cloud subnets. Which Of the following should the administrator do to resolve the issue?

  A. Allow firewall traffic to 192.168.5.0/24.
  B. Set both firewall interfaces to 192.168.5.1/24.
  C. Add interface 192.168.3.1/24 on the local firewall.
  D. Add interface 192.168.1.1/24 on the cloud firewall.
  A. Allow firewall traffic to 192.168.5.0/24.

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  Explanation

  To allow communication between the on-premises and cloud subnets, the firewall traffic should be allowed to pass through the additional subnet for communication, which is 192.168.5.0/24. This subnet acts as a bridge between the two networks and should have firewall rules that permit traffic from and to both sides.

  References: [CompTIA Cloud+ Study Guide], page 181.

• Question 175:

  A cloud engineer recently used a deployment script template to implement changes on a cloud-hosted web application. The web application communicates with a managed database on the back end. The engineer later notices the web application is no longer receiving data from the managed database. Which of the following is the MOST likely cause of the issue?

  A. Misconfiguration in the user permissions
  B. Misconfiguration in the routing traffic
  C. Misconfiguration in the network ACL
  D. Misconfiguration in the firewall
  A. Misconfiguration in the user permissions

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  Explanation

  https://www.sunnyvalley.io/docs/network-security-tutorials/most-common-cause-of-firewall-failure

• Question 176:

  A piece of software applies licensing fees on a socket-based model. Which of the following is the MOST important consideration when attempting to calculate the licensing costs for this software?

  A. The amount of memory in the server
  B. The number of CPUs in the server
  C. The type of cloud in which the software is deployed
  D. The number of customers who will be using the software
  B. The number of CPUs in the server

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  Explanation

  The most important consideration when attempting to calculate the licensing costs for a piece of software that applies licensing fees on a socket-based model is the number of CPUs in the server. A socket-based model is a type of licensing model that charges based on the number of physical CPU sockets or slots on the server, regardless of how many cores or threads each CPU has. The systems administrator should count how many CPUs are installed on each server and multiply that by the licensing fee per socket to determine the total licensing cost for the software.

  CompTIA Cloud+ Certification Exam Objectives, Domain 3.0 Maintenance, Objective 3.3 Given a scenario, analyze system performance using standard tools.

• Question 177:

  A company has moved all on-premises workloads into a public cloud. After some time, the cloud engineer starts noticing time drifts on the VMs and suspects an NTP issue. Time drifts were not an issue when all the workloads were on-premises.

  Which of the following describes how the cloud engineer should resolve the issue?

  A. Implement Coordinated Universal Time on all workloads
  B. Point all workloads back to an on-premises NTP server
  C. Point all workloads to a stratum 2 within the public cloud provider
  D. Configure all of the VMs as NTP servers within the public cloud provider
  A. Implement Coordinated Universal Time on all workloads

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  Explanation

• Question 178:

  A systems administrator needs to modify the replication factors of an automated application container from 3 to 5. Which of the following file types should the systems administrator modify on the master controller?

  A. .yaml
  B. .txt
  C. .conf
  D. .etcd
  A. .yaml

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  Explanation

  In many containerized applications and orchestration tools like Kubernetes, configuration settings are often stored in YAML (YAML Ain't Markup Language) files. These files define various aspects of the application's behavior, including replication factors, deployment settings, and other parameters. Replication factor refers to the number of replica instances of a containerized application that should be maintained for high availability and fault tolerance.#master-components

• Question 179:

  An engineer is investigating potential performance issues in a hypervisor platform. When comparing the allocated versus actual resources, the engineer notices the platform is oversubscribed. Which of the following is MOST likely the immediate cause of the performance issues?

  A. Dynamic allocation
  B. Oversubscription
  C. Ballooning
  D. Transparent page sharing
  B. Oversubscription

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  Explanation

  https://www.techtarget.com/searchitoperations/answer/How-do-I-size-capacity-for-VMware-oversubscription

• Question 180:

  A systems administrator is deploying a solution that includes multiple network I/O-intensive VMs. The solution design requires that vNICs of the VMs provide low-latency, near-native performance of a physical NIC and data protection between the VMs. Which of the following would BEST satisfy these requirements?

  A. SR-IOV
  B. GENEVE
  C. SDN
  D. VLAN
  A. SR-IOV

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  Explanation

  SR-IOV (Single Root Input/Output Virtualization) is what would best satisfy the requirements of low-latency, near-native performance of a physical NIC and data protection between VMs for multiple network I/O-intensive VMs. SR-IOV is a technology that allows a physical NIC to be partitioned into multiple virtual NICs that can be assigned to different VMs. SR-IOV can provide the following benefits: Low-latency: SR-IOV can reduce latency by bypassing the hypervisor and allowing direct communication between the VMs and the physical NIC, without any overhead or interference. Near-native performance: SR-IOV can provide near-native performance by allowing the VMs to use the full capacity and functionality of the physical NIC, without any emulation or translation. Data protection: SR-IOV can provide data protection by isolating and securing the network traffic between the VMs and the physical NIC, without any exposure or leakage.