CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 391:

  During a security incident on an laaS platform, which of the following actions will a systems administrator most likely take as part of the containment procedure?

  A. Connect to an instance for triage.
  B. Add a deny rule to the network ACL.
  C. Mirror the traffic to perform a traffic capture.
  D. Perform a memory acquisition.
  B. Add a deny rule to the network ACL.

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  Explanation

  A network access control list (ACL) is a set of rules that controls the inbound and outbound traffic for a network interface or a subnet. A deny rule can be used to block or filter the traffic from a specific source or destination, such as an IP address, a port number, or a protocol. By adding a deny rule to the network ACL, a systems administrator can prevent the communication between the compromised instance and the attacker, or between the compromised instance and other instances or servers. This can help to contain the security incident and limit the potential damage or data loss. A deny rule can also be used to isolate the compromised instance for further investigation or remediation.

  References: CompTIA Cloud+ CV0-003 Study Guide, Chapter 5: Maintaining a Cloud Environment, page 222-223; What is a network access control list (ACL)?.

• Question 392:

  After a virtualized host is rebooted, ten guest VMs take a long time to start, and extensive memory utilization is observed. Which of the following should be done to optimize the host?

  A. Reduce the host memory assignment.
  B. Configure the virtual/swap memory configuration on the guest VMs.
  C. Increase the allocated vCPUs per VM.
  D. Reduce the allocated memory and enable dynamic memory.
  D. Reduce the allocated memory and enable dynamic memory.

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  Explanation

  D. Reduce the allocated memory and enable dynamic memory: Allocating excessive memory to VMs can lead to slow performance during initialization. Dynamic memory allows the system to allocate resources as needed, optimizing

  performance and resource use.

  References:

  CompTIA Cloud+ CV0-003 Study Guide Chapter 14: Compute Sizing for Deployment.

• Question 393:

  A cloud administrator needs to implement a mechanism to monitor the expense of the company's cloud resources.

  Which of the following is the BEST option to execute this task with minimal effort?

  A. Ask the cloud provider to send a daily expense report
  B. Set custom notifications for exceeding budget thresholds
  C. Use the API to collect expense information from cloud resources
  D. Implement a financial tool to monitor cloud resource expenses
  B. Set custom notifications for exceeding budget thresholds

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  Explanation

  Setting custom notifications for exceeding budget thresholds is the best option to execute the task of monitoring the expense of the company's cloud resources with minimal effort, as it can automate and simplify the process of tracking and alerting the cloud administrator about any overspending or wastage of cloud resources. Setting custom notifications can also help optimize the cost and performance of cloud resources, as it can enable timely and proactive actions to adjust or optimize the resource allocation or consumption based on the budget limits.

  References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5

• Question 394:

  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
  C. RPO

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  Explanation

  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 395:

  A systems administrator is attempting to gather information about services and resource utilization on VMs in a cloud environment. Which of the following will best accomplish this objective?

  A. Syslog
  B. SNMP
  C. CMDB
  D. Service management
  E. Performance monitoring
  E. Performance monitoring

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  Explanation

  Performance monitoring is a technique that collects and analyzes data about the services and resource utilization on VMs in a cloud environment. Performance monitoring can help the systems administrator to gather information about the CPU, memory, disk, network, and application performance of the VMs, as well as identify any bottlenecks, errors, or anomalies that may affect the cloud service quality. Performance monitoring can be implemented using various tools or agents that can collect and report the performance metrics from the VMs to a centralized dashboard or console. Performance monitoring can also help the systems administrator to optimize, troubleshoot, and plan the cloud resources and services.

  References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 5, Objective 5.1: Given a scenario, monitor cloud resources and services.

• Question 396:

  A company is using laaS services from two different providers: one for its primary site, and the other for a secondary site. The primary site is completely inaccessible, and the management team has decided to run through the BCP procedures. Which of the following will provide the complete asset information?

  A. DR replication document
  B. DR playbook
  C. DR policies and procedures document
  D. DR network diagram
  B. DR playbook

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  Explanation

  According to the CompTIA Cloud+ CV0-003 Certification Study Guide1, the answer is

  B. DR playbook. A DR playbook is a document that contains the detailed steps and procedures to recover from a disaster scenario. It includes the asset information, such as the cloud resources, configurations, and dependencies, that are needed to restore the normal operations of the business. A DR replication document is a document that describes how the data and applications are replicated between the primary and secondary sites. A DR policies and procedures document is a document that defines the roles and responsibilities of the staff, the communication channels, and the objectives and scope of the DR plan. A DR network diagram is a visual representation of the network topology and connectivity between the primary and secondary sites.

• Question 397:

  A systems administrator is building a standardized OS template for the deployment of a web service. The image is intended for various autoscaling groups. Which of the following should be included in the image as best practice?

  A. Graphical user interface.
  B. Website configuration.
  C. System security hardening elements.
  D. Compute, memory, and storage capacity.
  C. System security hardening elements.

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  Explanation

  C. System security hardening elements: Pre-hardened templates reduce vulnerabilities, enforce security best practices, and ensure compliance. They provide a standardized base for scalable deployments.

  References:

  CompTIA Cloud+ CV0-003 Study Guide Chapter 15: Cloud Migrations.

• Question 398:

  A systems administrator is troubleshooting issues with audio lag during phone conferences. When looking at the core switch, the administrator notices its buffers are consistently full, and packets are being dropped due to the large number being sent and received. There is no room in the budget for new hardware, but it is critical that the audio lag be fixed immediately. Which of the following will most likely resolve the issue?

  A. Enable compression of audio traffic.
  B. Configure QoS rules for VolP traffic.
  C. Verify that the gateway uplink is not saturated.
  D. Add an exception to IPS for voice traffic.
  B. Configure QoS rules for VolP traffic.

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  Explanation

  Quality of Service (QoS) rules can be configured to prioritize certain types of traffic, such as voice over IP (VoIP) traffic. This can help reduce audio lag during phone conferences by ensuring that VoIP packets are delivered faster and with

  less delay than other types of traffic. QoS rules can be applied at different levels of the network, such as the core switch, the router, or the firewall. By configuring QoS rules for VoIP traffic, the administrator can avoid packet drops and buffer

  overflows that can affect the quality of the audio.

  References: [CompTIA Cloud+ CV0-003 Study Guide], Chapter 3, Objective 3.2:

  Given a scenario, troubleshoot network connectivity issues.

• Question 399:

  A cloud administrator has configured a connection between two virtual private cloud environments at a public cloud provider that are each in different accounts. The administrator has configured the accounts correctly so they can connect to each other's resources. Both cloud environments have policies that allow anyone from 0.0.0.0/0 on TCP port 22. The following table shows the network configuration information:

  

  However, the administrator is unable to establish an SSH connection from a server in 10.250.40.100 to 10.250.48.214. Which of the following is the MOST likely issue?

  A. The network ACL is not configured to allow SSH access.
  B. The IP configuration on one of the servers is incorrect.
  C. The administrator does not have sufficient credentials.
  D. The routing tables have not been updated correctly.
  D. The routing tables have not been updated correctly.

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  Explanation

• Question 400:

  An organization is required to set a custom registry key on the guest operating system.

  Which of the following should the organization implement to facilitate this requirement?

  A. A configuration management solution
  B. A log and event monitoring solution
  C. A file integrity check solution
  D. An operating system ACL
  A. A configuration management solution

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  Explanation

  A configuration management solution is a type of tool or system that automates and standardizes the configuration and deployment of cloud resources or services according to predefined policies or rules. A configuration management solution can help set a custom registry key on the guest operating system in an IaaS instance, as it can apply the desired registry setting to one or more virtual machines (VMs) without manual intervention or scripting. A configuration management solution can also help maintain consistency, compliance, and security of cloud configurations by monitoring and enforcing the desired state.

  References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5