CLO-002 Exam Questions & Answers

Correct Answer: BC

Explanation: Geo-redundancy and backup are two methods that can ensure the availability of data that is accessed across multiple sites. Geo-redundancy is the practice of storing data in more than one geographic location, such as different regions, countries, or continents. This can improve the data availability by reducing the impact of natural disasters, network failures, or malicious attacks that may affect one site. Geo-redundancy can also improve the data performance by allowing users to access the data from the nearest or fastest site. Backup is the process of creating and storing copies of data that can be used to restore the original data in case of data loss, corruption, or deletion. Backup can ensure the data availability by providing a way to recover the data from a previous state, such as before a hardware failure, software error, or human error. Backup can also protect the data from accidental or intentional modifications that may compromise its integrity or security. Geo-redundancy and backup are different from other options, such as auto-scaling, provisioning, locality, and zones. Auto-scaling is the ability of a cloud service to automatically adjust the amount of resources allocated to a workload based on the demand or usage. Provisioning is the process of allocating and configuring the resources needed to run a cloud service or application. Locality is the principle of storing data close to where it is used, such as in the same region, country, or jurisdiction. Zones are logical or physical subdivisions of a cloud region that provide isolation and redundancy for the cloud resources. While these options may also affect the data availability, they do not directly address the data access across multiple sites, which is the focus of the question. References: Extending a Datastore Across Two Sites with Stretched Clusters, SQL Server Multi-Subnet Clustering - SQL Server Always On, What Is a Distributed Database? {Features, Benefits and Drawbacks}, Cloud Computing Availability - CompTIA Cloud Essentials+ (CLO-002) Cert Guide

Correct Answer: C

Explanation: A gaming application is a type of SaaS application that requires high compute resources to run the game logic, graphics, physics, and networking. Gaming applications also need to handle a large number of concurrent users and provide low latency and high performance. Therefore, the compute costs from the CSP would be extremely high for a gaming application. On the other hand, a gaming application does not need much storage space, as most of the game data is stored on the client side or in memory. Therefore, the storage costs from the CSP would be relatively low for a gaming application. The other options are not likely to have high compute costs and low storage costs. An email application, a CDN service, and an audio streaming service all need to store large amounts of data on the cloud, which would increase the storage costs. An email application and a CDN service do not need much compute power, as they mainly involve sending and receiving data. An audio streaming service may need some compute power to process and encode the audio files, but not as much as a gaming application. Therefore, the correct answer is C. A gaming application. References:

Cloud Computing for Gaming Applications, Cloud Computing for Online Games: A Survey, Cloud Gaming: A Green Solution to Massive Multiplayer Online Games.

Correct Answer: C

Explanation: VDI, or Virtual Desktop Infrastructure, is the result of performing a physical- to-virtual migration of desktop workstations. VDI is a technology that allows users to access and run desktop operating systems and applications from a centralized server in a data center or a cloud, instead of from a physical machine on their premises. VDI provides users with virtual desktops that are delivered over a network to various devices, such as laptops, tablets, or thin clients1. VDI offers several benefits, such as improved security, reduced costs, increased flexibility, and enhanced performance2. SaaS, or Software as a Service, is not the result of performing a physical-to-virtual migration of desktop workstations, but a cloud service model that provides ready-to-use software applications that run on the cloud provider's infrastructure and are accessed via a web browser or an API3. SaaS does not involve migrating desktop workstations, but using software applications that are hosted and managed by the cloud provider. IaaS, or Infrastructure as a Service, is not the result of performing a physical-to-virtual migration of desktop workstations, but a cloud service model that provides access to basic computing resources, such as servers, storage, network, and virtualization, that are hosted on the cloud provider's data centers and are rented on-demand. IaaS does not involve migrating desktop workstations, but renting infrastructure resources that can be used to host various workloads. VPN, or Virtual Private Network, is not the result of performing a physical-to-virtual migration of desktop workstations, but a technology that creates a secure and encrypted connection between a device and a network over the internet. VPN does not involve migrating desktop workstations, but connecting to a network that can provide access to remote resources or services. References: What is VDI? Virtual Desktop Infrastructure Definition - VMware; VDI Benefits: 7 Advantages

of Virtual Desktop Infrastructure; What is SaaS? Software as a service | Microsoft Azure; [What is IaaS? Infrastructure as a service | Microsoft Azure]; [What is a VPN? | HowStuffWorks].