CV0-003 Exam Dumps - CompTIA Cloud+ Certification Exam

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.

Detailed Explanation:

A. Add CPU resources to the cluster: High CPU wait time indicates insufficient CPU resources for handling workload demands. Adding CPUs to the cluster will reduce latency and improve application performance.

References:

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

SR-IOV stands for Single Root I/O Virtualization, which is a technology that allows a physical network adapter to be partitioned into multiple virtual functions (VFs) that can be directly assigned to virtual machines (VMs). This way, the network traffic bypasses the software layer of the hypervisor and the virtual switch, and goes directly from the VM to the physical adapter. This reduces the CPU overhead, the network latency, and the packet loss, and improves the network throughput and scalability. SR-IOV can achieve near-native performance for network-intensive applications, such as an integration application that communicates between different application and database servers. By enabling SR-IOV capability on the physical server and the virtual server, the P2V migration can maintain the same level of network throughput and latency as the original physical machine. References: High performance network virtualization with SR-IOV; Supercharge Your Network Throughput via Single Root I/O Virtualization (SR-IOV); Overview of Single Root I/O Virtualization (SR-IOV).

Volume-based licensing is a model where the cost of the software is based on the number of licenses purchased1. This model is commonly used for software that is installed on a specific number of devices, such as antivirus software or office productivity suites1. Therefore, the number of machines is the most important factor when considering licensing costs in this model.

References: CompTIA Cloud+ CV0-003 Exam Objectives, Objective 1.2: Given a scenario, compare and contrast various cloud service models ; Cloud+ Exam CV0-003: CompTIA Cloud+ Licensing Models1

A production snapshot is a point-in-time copy of the state and data of a production server or instance. It can be used to restore the server or instance to the exact state it was in when the snapshot was taken, in case of a failure, error, or corruption. A production snapshot can help to ensure a quick rollback in case an issue arises during an application upgrade, as it can revert the changes made by the upgrade and restore the previous version of the application. A production snapshot can also preserve the configuration and settings of the server or instance, as well as the application data and dependencies. A production snapshot is different from a backup, which is a copy of the data only, and may not include the state or configuration of the server or instance. References: CompTIA Cloud+ CV0-003 Study Guide, Chapter 2: Deploying a Cloud Environment, page 75-76; Snapshots vs Backups: Key Differences and Similarities.

Detailed 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​​.

The best option to perform the database migration is to create a replica database, synchronize the data, and switch to the new instance. This option can help meet the restricted SLA and avoid offline time for the database. Creating a replica database can help copy the data from the source to the destination without interrupting the database operations. Synchronizing the data can help ensure that the replica database is updated with any changes that occur in the source database during the migration process. Switching to the new instance can help complete the migration and activate the new database in the cloud. This option can also help avoid the network bandwidth limitation and the large size of the data. References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 7, Objective 7.1: Given a scenario, migrate applications and data to the cloud.

FIM stands for File Integrity Monitoring, and it is a security technique that monitors and detects changes in files and directories. FIM can help the systems administrator to be notified every time an application’s configuration files are updated by generating alerts or reports when the files are modified, added, deleted, or accessed. FIM can also help verify the integrity and authenticity of the files by comparing their hashes or signatures with a baseline or a trusted source. FIM can be implemented using software tools or agents that run on the host or the network. References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 9, Objective 9.1: Given a scenario, apply security controls and techniques.