CV0-003 Exam Dumps - CompTIA Cloud+ Questions and Answers

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

CDN, or content delivery network, is a system of distributed servers that deliver web content to users based on their geographic location, the origin of the web page, and the content delivery server1. A CDN can improve the performance, availability, and scalability of cloud applications by caching static and dynamic content at the edge of the network, reducing the latency and bandwidth consumption between the users and the cloud servers2. A CDN can also provide security features such as encryption, authentication, and DDoS protection3.

Autoscaling, SR-IOV, and containerization are other techniques that can optimize the network for cloud applications, but they are not directly related to the requirement of faster downloads for users. Autoscaling is the process of automatically adjusting the number and size of compute resources based on the demand and workload of the application. SR-IOV, or single root I/O virtualization, is a technology that allows a physical network device to be partitioned into multiple virtual devices that can be assigned to different virtual machines or containers, bypassing the hypervisor and improving the network performance and efficiency. Containerization is the process of packaging an application and its dependencies into a lightweight and portable unit that can run on any platform, providing isolation, consistency, and portability.

References:

CompTIA Cloud+ CV0-003 Study Guide, Chapter 4: Network Optimization, Section 4.1: Content Delivery Networks, Page 17523

CompTIA Cloud+ CV0-003 Study Guide, Chapter 4: Network Optimization, Section 4.2: Autoscaling, Page 180

CompTIA Cloud+ CV0-003 Study Guide, Chapter 4: Network Optimization, Section 4.3: SR-IOV, Page 184

CompTIA Cloud+ CV0-003 Study Guide, Chapter 4: Network Optimization, Section 4.4: Containerization, Page 187

What is a CDN?

The correct answers are B and D.

B. Reduced monthly costs: One of the main advantages of public cloud is that it lowers the costs of IT infrastructure and maintenance for the customers. They do not need to purchase, install, or manage any hardware or software, and they only pay for the resources they use. This can result in significant savings compared to owning and operating a private cloud or an on-premise data center1234

D. Pay as you use: Another benefit of public cloud is that it offers a flexible and scalable pricing model based on the actual usage of the customers. They can adjust their resource consumption according to their changing needs and demands, and only pay for what they use. This eliminates the need for upfront capital investment or long-term contracts, and allows customers to optimize their spending and performance1234

The best way to resolve the issue of an unusual increase in the read operations that is causing a heavy load in the system that is using a relational database and is running in a VM is to use a cache system to store reading operations. A cache system is a type of storage system that temporarily stores frequently accessed or recently used data in memory for faster retrieval. A cache system can reduce the load on the database system by serving the read requests from the cache instead of querying the database every time. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 4.0 Troubleshooting, Objective 4.3 Given a scenario, troubleshoot capacity issues within a cloud environment.

Maximum resource consumption is what will help predict the operational expenditures in the cloud for an application that is being migrated from on premises to a public cloud provider. Operational expenditures are the ongoing costs of running and maintaining a system or service, such as cloud resources or services. Operational expenditures can vary depending on various factors, such as usage, demand, performance, etc. Maximum resource consumption is the highest amount of resources or capacity that are used or consumed by a system or service during peak periods of activity or load. Maximum resource consumption can help predict operational expenditures in the cloud by providing information such as:

Resource type: This indicates what type of resources are used or consumed by the system or service, such as compute, storage, network, etc.

Resource amount: This indicates how much of each resource type are used or consumed by the system or service, such as CPU cores, memory, disk space, bandwidth, etc.

Resource price: This indicates how much each resource type costs in the cloud provider’s pricing model, such as per hour, per GB, per Mbps, etc.

A site-to-site VPN is a type of VPN configuration that establishes a secure connection between two networks, such as a data center and a cloud environment. A site-to-site VPN allows all the devices in one network to communicate with all the devices in the other network, without requiring individual VPN clients or connections. A site-to-site VPN is suitable for a company that is migrating workloads from on premises to the cloud and would like to establish a connection between the entire data center and the cloud environment, as it can provide seamless and secure access to both networks.

A synthetic full backup is a type of backup that combines the latest full backup with all the subsequent incremental backups to create a new full backup. This type of backup will back up all the data from each VM daily while also saving space, as it does not require a new full backup every time and only transfers the changed data from the incremental backups. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 3.0 Maintenance, Objective 3.2 Given a scenario, implement backup, restore, disaster recovery and business continuity measures.

The most suitable hashing algorithm from a performance perspective to maintain file integrity checks on a cloud object store is MD5 (Message Digest 5). MD5 is a hashing algorithm that generates a 128-bit hash value for any given input data. MD5 is faster and more efficient than other hashing algorithms, such as SHA-256 or SHA-512, which generate longer hash values and require more computational resources. MD5 can be used to verify the integrity of files by comparing their hash values before and after transmission or storage. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.5 Given a scenario, apply data security techniques in the cloud.

One possible cause for the strange files and the large spike in network traffic on the storage appliance is that the default password is still configured on the appliance. A default password is a password that is set by the manufacturer or vendor of a device or software, and it is often easy to guess or find online. If the cloud engineer did not change the default password after deploying the virtual storage appliance, it could allow unauthorized users to access the appliance remotely and upload or download files, which could explain the symptoms observed by the administrator. This is a serious security risk that could compromise the confidentiality, integrity, and availability of the data stored on the appliance.

These are the components of the hypervisors that should be upgraded by the administrator who is performing upgrades to all the hypervisors in the environment. A hypervisor is a software or hardware that allows multiple VMs (Virtual Machines) to run on a single physical host or server. A hypervisor consists of various components, such as:

The firmware: This is the software that controls the basic functions and operations of the hardware or device. The firmware can affect the performance, compatibility, and security of the hypervisor and the VMs. The firmware should be upgraded to ensure that it supports the latest features and functions of the hardware or device, as well as fix any bugs or vulnerabilities.

The operating system: This is the software that manages the resources and activities of the hypervisor and the VMs. The operating system can affect the functionality, reliability, and efficiency of the hypervisor and the VMs. The operating system should be upgraded to ensure that it supports the latest applications and services of the hypervisor and the VMs, as well as improve stability and performance.