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For which of the following reasons is the infrastructure as code technique used?
Infrastructure as code (IaC) is a software engineering approach that allows the provisioning and management of infrastructure resources using code and automation1.It involves defining infrastructure configurations and provisioning them through code, rather than manually configuring and managing infrastructure resources2.One of the main reasons for using IaC is to capture the system configurations to track changes and remediate configuration drift3. Configuration drift is the phenomenon where the actual state of an infrastructure resource deviates from its desired state over time due to manual interventions, updates, patches, or other factors. Configuration drift can cause inconsistencies, errors, and security issues in the infrastructure environment. IaC helps to prevent and detect configuration drift by storing the infrastructure configuration code in a version control system and applying it consistently across all environments. IaC also enables the use of automated testing and validation tools to verify the compliance and functionality of the infrastructure resources.By using IaC, DevOps teams can ensure that the infrastructure is always in a known and reproducible state, and that any changes are documented and traceable.Reference:1: https://technology.gov.capital/infrastructure-as-code-iac/2: https://aws.amazon.com/what-is/iac/3: https://learn.microsoft.com/en-us/devops/deliver/what-is-infrastructure-as-code : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, Chapter 5, page 179-180
A web application was deployed, and files are available globally to improve user experience. Which of the following technologies is being used?
A content delivery network (CDN) is a technology that distributes web content across multiple servers in different geographic locations to improve user experience11.A CDN can be used to deploy web applications and files globally, so that users can access them faster and more reliably from their nearest server12.A CDN also reduces bandwidth consumption and network congestion by caching static content at the edge servers13.
What is a content delivery network (CDN)?, IBM
Where to A/B Test: Front-End vs Back-End vs CDN vs API, Medium
Content Delivery Networks (CDNs), MDN Web Docs
An organization determines it cannot go forward with a cloud migration due to the risks involved. Which of the following types of risk response does this describe?
According to the CompTIA Cloud Essentials+ Study Guide, risk response is the process of developing and implementing strategies to address the identified risks in a cloud project1.There are four types of risk response strategies: acceptance, transference, avoidance, and mitigation1. Each strategy has its own advantages and disadvantages, depending on the nature and impact of the risk.
Acceptance is the strategy of acknowledging the risk and its consequences, without taking any action to reduce or eliminate it. This strategy is suitable for risks that have low probability and low impact, or for risks that are unavoidable or too costly to address.Acceptance can be passive, where no contingency plans are prepared, or active, where some reserves or fallback options are allocated1.
Transference is the strategy of shifting the risk and its responsibility to a third party, such as a cloud service provider, an insurance company, or a subcontractor. This strategy is suitable for risks that have high impact but low probability, or for risks that require specialized skills or resources to handle. Transference does not eliminate the risk, but it reduces the exposure and liability of the organization.However, transference also involves some costs and trade-offs, such as loss of control, dependency, or contractual issues1.
Avoidance is the strategy of eliminating the risk and its causes, by changing the scope, plan, or design of the cloud project. This strategy is suitable for risks that have high probability and high impact, or for risks that are unacceptable or intolerable for the organization.Avoidance can be effective in removing the threat, but it can also result in missed opportunities, reduced benefits, or increased costs1.
Mitigation is the strategy of reducing the probability and/or impact of the risk, by implementing some preventive or corrective actions. This strategy is suitable for risks that have moderate probability and impact, or for risks that can be controlled or minimized.Mitigation can be proactive, where actions are taken before the risk occurs, or reactive, where actions are taken after the risk occurs1.
In the given scenario, an organization determines it cannot go forward with a cloud migration due to the risks involved. This describes the avoidance strategy, as the organization is eliminating the risk and its causes by changing the plan of the cloud project.The organization is avoiding the potential negative consequences of the cloud migration, but it is also foregoing the potential benefits and opportunities of the cloud adoption.Reference:1: https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, Chapter 7, page 241-243
An online retailer wants to ensure its inventory for the holiday season is correct. The company does not have a large IT infrastructure or staff to collect and analyze sales information, customer analytics, marketing information, or trends. Which of the following cloud services will help the company analyze these metrics without a large investment in human capital?
Big data is a term that describes the large volume, variety, and velocity of data that is generated by various sources, such as social media, e-commerce, sensors, etc. Big data can be analyzed using cloud-based tools and techniques, such as machine learning, artificial intelligence, or data analytics, to gain insights and make informed decisions. Big data can help an online retailer to understand its customers' behavior, preferences, trends, and feedback, as well as optimize its inventory, marketing, pricing, and sales strategies. Big data can also help the retailer to reduce costs, improve efficiency, and increase customer satisfaction and loyalty.Big data is a cloud service that does not require a large investment in human capital, as the cloud provider can offer scalable, flexible, and secure solutions that can handle the complexity and volume of data.Reference: CompTIA Cloud Essentials+ Certification Exam Objectives1, CompTIA Cloud Essentials+ Study Guide, Chapter 5: Cloud Native Applications and Cloud Data Analytics2, CompTIA Cloud Essentials+: Cloud Native Apps & Cloud Data Analytics3
An on-premises, business-critical application is used for financial reporting and forecasting. The Chief Financial Officer requests options to move the application to cloud. Which of the following would be BEST to review the options?
A feasibility assessment is a process of evaluating the viability and suitability of moving an on-premises application to the cloud. A feasibility assessment can help identify the benefits, risks, costs, and challenges of cloud migration, as well as the technical and business requirements, constraints, and dependencies of the application. A feasibility assessment can also help compare different cloud service models, deployment models, and providers, and recommend the best option for the application. A feasibility assessment would be the best way to review the options for moving a business-critical application to the cloud.
A gap analysis is a process of identifying the differences between the current and desired state of a system or process. A gap analysis can help determine the gaps in performance, functionality, security, or compliance of an on-premises application and a cloud-based application, and suggest the actions needed to close the gaps. A gap analysis is usually performed after a feasibility assessment, when the cloud migration option has been selected, and before the transition planning phase.
A test is a process of verifying the functionality, performance, security, or compatibility of an application or system. A test can help detect and resolve any errors, bugs, or issues in the application or system, and ensure that it meets the expected standards and specifications. A test can be performed in a sandbox environment, which is an isolated and controlled environment that mimics the real production environment. A test is usually performed during or after the cloud migration process, when the application has been deployed or migrated to the cloud, and before the final release or launch.
A high-level architecture is a conceptual or logical design of an application or system that shows the main components, functions, relationships, and interactions of the application or system. A high-level architecture can help visualize and communicate the structure, behavior, and goals of the application or system, and guide the development and implementation process. A high-level architecture is usually created during the design phase of the cloud migration process, after the feasibility assessment and the gap analysis, and before the development and testing phase.Reference:CompTIA Cloud Essentials+ CLO-002 Study Guide, page 109-110, 113-114, 117-118, 121-122;CompTIA Cloud Essentials+ Certification Training, CertMaster Learn for Cloud Essentials+, Module 3: Cloud Solutions, Lesson 3.2: Cloud Migration, Topic 3.2.1: Cloud Migration Process
