CompTIA CLO-002 Dumps

 Regression testing is the best testing technique to ensure that the existing functionalities are not compromised by the addition of a new functionality. Regression testing is the type of testing performed to ensure that a code change in software does not affect the product’s existing functionality. This ensures that the product functions correctly with new functionality, bug fixes, or changes to existing features. To validate the impact of the shift, previously executed test cases are re-executed1. Regression testing can be done manually or by using automated tools. Some of the most commonly used tools for regression testing are Selenium, WATIR, QTP, RFT, Winrunner, and Silktest2.

References: CompTIA Cloud Essentials+ CLO-002 Study Guide, Chapter 5: Cloud Service Operations, Section 5.3: Cloud Service Testing, p. 217-2181

Cloud bursting is a configuration method that uses cloud computing resources whenever on-premises infrastructure reaches peak capacity. When organizations run out of computing resources in their internal data center, they burst the extra workload to external third-party cloud services. Cloud bursting is a convenient and cost-effective way to to support workloads with varying demand patterns and seasonal spikes in demand12. Elasticity and scalability are related concepts, but they are not specific solutions for the retailer’s problem. Elasticity refers to the ability of a cloud service to automatically adjust the amount of resources allocated to a workload based on the current demand3. Scalability refers to the ability of a cloud service to handle increasing or decreasing workloads by adding or removing resources4. Self-service is a feature of cloud computing that allows users to provision, manage, and monitor their own cloud resources without the need for human intervention5. While these features are beneficial for cloud consumers, they do not address the retailer’s need to handle the high load on its servers during the holiday season without moving its IT operations completely to the cloud.

https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/what-is-cloud-bursting/

https://aws.amazon.com/what-is/cloud-bursting/

https://www.geeksforgeeks.org/cloud-bursting-vs-cloud-scaling/

According to the CompTIA Cloud Essentials objectives and documents, SaaS, or Software as a Service, is the best option for describing a cloud-hosted application in which the end user only creates user access and configures options. SaaS is a cloud service model that delivers and manages software applications over the internet, without requiring the end user to install, update, or maintain any software or hardware on their own devices. SaaS applications are typically accessed through a web browser or a mobile app, and the end user only pays for the usage or subscription of the service. SaaS providers are responsible for the infrastructure, platform, security, and maintenance of the software applications, and the end user only needs to create user access and configure options according to their preferences and needs. SaaS applications are usually designed for specific purposes or functions, such as email, collaboration, CRM, ERP, or accounting.

The other service models are not as suitable for describing a cloud-hosted application in which the end user only creates user access and configures options. MaaS, or Monitoring as a Service, is a type of cloud service that provides monitoring and management of cloud resources and services, such as performance, availability, security, or compliance. MaaS is not a cloud-hosted application, but rather a cloud service that supports other cloud applications. PaaS, or Platform as a Service, is a cloud service model that delivers and manages the hardware and software resources to develop, test, and deploy applications through the cloud. PaaS provides the end user with a cloud-based platform that includes the operating system, middleware, runtime, database, and other tools and services. PaaS providers are responsible for the infrastructure, security, and maintenance of the platform, and the end user only needs to write and manage the code and data of their applications. PaaS applications are usually customized and developed by the end user, rather than provided by the cloud service provider. IaaS, or Infrastructure as a Service, is a cloud service model that delivers and manages the basic computing resources, such as servers, storage, networking, and virtualization, over the internet. IaaS provides the end user with a cloud-based infrastructure that can be used to run any software or application. IaaS providers are responsible for the hardware, security, and maintenance of the infrastructure, and the end user is responsible for the operating system, middleware, runtime, database, and applications. IaaS applications are usually more complex and require more configuration and management by the end user, rather than by the cloud service provider.