CLO-002 Exam Dumps : CompTIA Cloud Essentials+

Geo-redundancy is the distribution of mission-critical components or infrastructures, such as servers, across multiple data centers that reside in different geographic locations1. Geo-redundancy acts as a safety net in case the primary site fails or in the event of a disaster or an outage that impacts an entire region1. Geo-redundancy also reduces latency and ensures close proximity to end users by delivering web content from the nearest data center2. Geo-redundancy is a common feature of cloud computing, as it provides high availability, reliability, and performance for cloud applications and services2.

Replication is the process of copying data from one location to another, such as from a primary site to a secondary site, or from one cloud provider to another3. Replication is a necessary but not sufficient condition for geo-redundancy, as it does not guarantee that the replicated data is accessible or consistent across different regions3. Replication can also introduce operational complexity and data synchronization issues3.

Zones are logical or physical partitions of a cloud provider’s infrastructure that offer high availability and fault tolerance within a region4. Zones are usually located in the same or nearby data centers, and are connected by low-latency network links4. Zones can help distribute the workload and prevent single points of failure, but they do not provide geo-redundancy, as they are still vulnerable to regional outages or disasters4.

Backup is the process of creating and storing copies of data for the purpose of recovery in case of data loss or corruption5. Backup is an important part of data protection and disaster recovery, but it does not provide geo-redundancy, as it does not ensure that the backup data is available or up-to-date in different regions5. Backup can also have longer recovery time and higher cost than geo-redundancy5. References: Use geo-redundancy to design highly available applications; Geo Redundancy Explained | Cloudify; Georedundancy - Open Telekom Cloud; Why geo-redundancy for cloud infrastructure is a ‘must have’; Geo-Redundancy: Why Is It So Important? | Unitrends.

 After documenting the business use-case scenarios, the architect’s next step should be to conduct a feasibility study. A feasibility study is an analysis of the viability and suitability of a proposed solution or project, such as migrating to the cloud. A feasibility study evaluates the technical, operational, financial, legal, and ethical aspects of the solution, as well as the risks and benefits involved. A feasibility study helps the architect to determine if the solution is feasible, desirable, and achievable, and to identify any potential issues or challenges that may arise1. A feasibility study is one of the key components of a cloud assessment, which is a process of evaluating the readiness and suitability of an organization for cloud adoption1.

A proof of concept (PoC) is a demonstration or prototype of a solution that shows how it works and what it can achieve. A PoC is usually done after a feasibility study, when the solution has been proven to be feasible and the requirements have been defined1.

A gap analysis is a comparison of the current state and the desired state of a process, system, or organization. A gap analysis identifies the gaps or differences between the two states, and the actions or resources needed to close them. A gap analysis is usually done after a feasibility study and a PoC, when the solution has been validated and the goals have been established1.

Gathering cloud requirements is the process of collecting and analyzing the needs and expectations of the stakeholders for the cloud solution. Gathering cloud requirements is usually done after a feasibility study and before a PoC, when the solution has been confirmed to be feasible and the scope has been defined1. References: CompTIA Cloud Essentials+ Certification | CompTIA IT Certifications, The New CompTIA Cloud Essentials+: Setting the Foundation For Vendor-specific IT Certifications, CompTIA Cloud Essentials CLO-002 Certification Study Guide

Rip and replace is a cloud migration method that involves discarding the existing legacy system and building a new one from scratch on the cloud platform. This method allows the organization to take full advantage of the cloud computing model, such as scalability, elasticity, performance, and cost-efficiency. Rip and replace also enables the organization to leverage the cloud-native features and services, such as serverless computing, microservices, and containers. However, rip and replace is also the most complex and risky migration method, as it requires a complete redesign and redevelopment of the system, which can be time-consuming, expensive, and prone to errors. Therefore, rip and replace is only suitable for systems that are outdated, incompatible, or unsuitable for the cloud environment, and that have a clear business case and return on investment for the migration. References: CompTIA Cloud Essentials+ CLO-002 Study Guide, Chapter 5: Cloud Migration, page 1971