CLO-002 Online Practice Questions and Answers

Correct Answer: B

Explanation: Load testing is the technique that helps an organization determine benchmarks for application performance within a set of resources. Load testing is the process of simulating a high volume of user requests or traffic to a cloud application or service, and measuring its response time, throughput, availability, and reliability. Load testing can help an organization to evaluate the performance and scalability of the cloud application or service, as well as to identify and resolve any bottlenecks, errors, or failures. Load testing can also help the organization to optimize the resource utilization and allocation, and to plan for future growth or peak demand. Load testing can be done using various tools, such as JMeter, LoadRunner, or BlazeMeter12 References: CompTIA Cloud Essentials+ Certification Exam Objectives3, CompTIA Cloud Essentials+ Study Guide, Chapter 6: Cloud Connectivity and Load Balancing4, Cloud Essentials+ Certification Training2

Correct Answer: B

Explanation: Big data is a term that describes the large and diverse datasets that are generated from various sources at high speed and require advanced analytics techniques to process and extract value from them. Big data can help organizations gain insights, uncover patterns, and make informed decisions12 The company is implementing big data because it is using different information sources in combination with its current databases, which implies that the data is large in volume and variety. The company is also using the CSP's solutions to ingest, transform, and process the information, which implies that the data is high in velocity and requires specialized tools and frameworks to handle it. The company is using big data analytics to analyze the results of its email marketing campaign, which can help it understand the effectiveness, impact, and return on investment of its marketing strategy34 Blockchain is not the correct answer, because blockchain is a technology that enables the creation and management of distributed, decentralized, and immutable ledgers of transactions. Blockchain can help organizations improve transparency, security, and trust in their business processes, but it is not related to the analysis of email marketing campaign results. Social media is not the correct answer, because social media is a platform that enables the creation and sharing of content and information among users. Social media can help organizations communicate, engage, and interact with their customers, but it is not the main focus of the analysis of email marketing campaign results. Social media can be one of the information sources for big data, but it is not the same as big data. IoT is not the correct answer, because IoT is a concept that refers to the network of physical devices, sensors, and machines that are connected to the internet and can collect and exchange data. IoT can help organizations improve efficiency, productivity, and innovation, but it is not related to the analysis of email marketing campaign results. IoT can be one of the information sources for big data, but it is not the same as big data. References: 1: https://www.comptia.org/training/books/cloud-essentials-clo-002-studyguide, page 36 2: https://cloud.google.com/learn/what-is-big-data 3: https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 48 4: https://www.ibm.com/cloud/blog/how-to-estimate-cloud-costs-a-pricing-crash-course : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 40 : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 38 : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 39

Correct Answer: B

API stands for Application Programming Interface, which is a set of rules and protocols that allow different software components or systems to communicate and exchange data. API is used to integrate with cloud solutions because it enables developers to access the cloud services and resources programmatically, without having to deal with the underlying infrastructure or platform details. API also allows for automation, scalability, and interoperability of cloud applications and services. References: Chapter 3: Cloud Computing Concepts and Models, Section 3.2: Cloud Service Models, Subsection 3.2.1: Software as a Service (SaaS), Page 87; Chapter 4: Cloud Computing Principles and Design, Section 4.3: Cloud Characteristics and Risks, Subsection 4.3.2: Cloud Characteristics, Page 121; from https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide or CompTIA Cloud Essentials+ sources.

Correct Answer: D

Explanation: The marketing department likely stores large media files on its servers, leading to increased storage costs. This is because the marketing department is responsible for creating and distributing various types of digital content, such as videos, images, podcasts, and webinars, to promote the products and services of the enterprise. These media files tend to be large in size and require more storage space than other types of data, such as text documents or spreadsheets. Therefore, the marketing department consumes more storage resources than the other departments, which increases the monthly cloud costs for the enterprise. References: CompTIA Cloud Essentials+ CLO-002 Study Guide, Chapter 3: Cloud Service and Delivery Models, Section 3.2: Cloud Storage, Page 97

Correct Answer: B

Explanation: A feasibility study is a process of evaluating the viability of a project or an idea before committing resources and time to it. It helps to identify the potential benefits, costs, risks, and challenges of a proposed solution. A feasibility study is especially important when migrating an application to a cloud platform, as it can determine whether the application is compatible with the cloud provider's services, standards, and requirements. In this case, the organization wants to migrate a locally hosted application that runs on a 15-year-old operating system to a PaaS model. The application cannot be upgraded, which means it may not be supported by the cloud provider's platform. A feasibility study can help the organization to assess the technical and operational feasibility of the migration, as well as the financial and strategic implications. A feasibility study can also help the organization to compare different cloud providers and select the best one for their needs. References: CompTIA Cloud Essentials+ Certification Study Guide, Second Edition (LO-002), Chapter 4: Cloud Planning, Section 4.2: Feasibility Studies1

Correct Answer: D

Explanation: A lift and shift migration approach, also known as rehosting, is a cloud migration strategy where applications and infrastructure are moved from one environment to another without making substantial changes to the underlying architecture123. This approach can be faster, cheaper, and less risky than other migration strategies, as it does not require extensive redesign or reconfiguration of the applications. However, it may also limit the ability to leverage the native features and benefits of the cloud platform, such as scalability, elasticity, and performance1245. One of the challenges of a lift and shift migration is transferring large amounts of data and virtual machines over the network, which can be time-consuming, costly, and prone to errors. To overcome this challenge, some cloud providers offer a technique where the customer can transfer all of their on-premises data and virtual machines to an appliance, such as a physical storage device or a server, and then ship it to the cloud provider. The cloud provider then uploads the data and virtual machines to the cloud platform, where they can be accessed by the customer12. This technique can reduce the network bandwidth and latency issues, as well as the security risks, associated with transferring data over the internet. However, it may also introduce additional costs and delays for shipping and handling the appliance, as well as the risk of damage or loss during transit2. Therefore, transferring all of a customer's on-premises data and virtual machines to an appliance, and then shipping it to a cloud provider is a technique used in a lift and shift migration approach. References:

1: Lift and Shift: An Essential Guide | IBM

2: What Is Lift and Shift? | 5 Strategies to Consider | NetApp

3: What Is Lift and Shift Migration? | Pure Storage

4: Lift and Shift: Business Benefits, Planning and Execution - NetApp

5: Lift and Shift Cloud Migration: Benefits, Disadvantages and Use Cases ...

Correct Answer: C

Explanation: Variable cost is a billing concept that means the customer pays only for the resources they consume, and the cost varies depending on the usage. This is different from fixed cost, which means the customer pays a predetermined amount regardless of the usage. IaaS-based setups typically use variable cost billing, as the customer can provision and deprovision resources on demand, and only pay for what they use. This allows the customer to optimize their costs and scale their resources according to their needs123. References: [CompTIA Cloud Essentials+ Certification Study Guide, Second Edition (LO-002)], Chapter 1: Cloud Principles and Design, pages 17-18.

Correct Answer: D

Explanation: Infrastructure as code (IaC) is the ability to provision and support your computing infrastructure using code instead of manual processes and settings1. IaC can be used to achieve automation, environment consistency, and standardization of computer resources in a cloud environment, as it eliminates the need for developers to manually configure and manage servers, operating systems, database connections, storage, and other infrastructure elements every time they want to develop, test, or deploy a software application2. IaC also enables developers to easily duplicate, track, and version their infrastructure, and to avoid configuration errors and drifts that can cause deployment failures2. IaC is an essential DevOps practice, as it enables faster and more reliable software delivery lifecycles2. References: 1: AWS, What is Infrastructure as Code? - IaC Explained; 2: IBM, Infrastructure as Code | IBM

Correct Answer: B

Explanation: A CDN (content delivery network) is a network of distributed servers that store and deliver content to users based on their geographic location and network conditions. A CDN can improve the performance, availability, scalability, and security of web-based applications and services by reducing the latency, bandwidth, and load on the origin server. A CDN is most likely to be used by a video streaming service, which typically involves large amounts of data, high demand, and diverse audiences. A video streaming service can benefit from using a CDN by caching and streaming the video content from the nearest or best-performing server to the user, thus enhancing the user experience and reducing the cost and complexity of the service. A realty listing website is a web-based application that allows users to search, view, and compare properties for sale or rent. A realty listing website may use a CDN to improve the performance and availability of the website, especially if it has a large number of images, videos, or other media files. However, a realty listing website is not as likely to use a CDN as a video streaming service, since the content is not as dynamic, the demand is not as high, and the audience is not as diverse. An email service provider is a company that offers email hosting, management, and delivery services to users. An email service provider may use a CDN to improve the security and reliability of the email service, especially if it has a large number of users, messages, or attachments. However, an email service provider is not as likely to use a CDN as a video streaming service, since the content is not as public, the performance is not as critical, and the location is not as relevant. A document management system is a software application that allows users to create, store, organize, and share documents. A document management system may use a CDN to improve the scalability and accessibility of the document storage and retrieval, especially if it has a large number of documents, users, or collaborators. However, a document management system is not as likely to use a CDN as a video streaming service, since the content is not as large, the demand is not as variable, and the audience is not as global. References: CompTIA Cloud Essentials+ CLO-002 Study Guide, page 165- 166; CompTIA Cloud Essentials+ Certification Training, CertMaster Learn for Cloud Essentials+, Module 4: Management and Technical Operations, Lesson 4.2: Cloud Networking, Topic 4.2.4: Content Delivery Networks

Correct Answer: B

Explanation: A software-defined network (SDN) is a category of technologies that make it possible to manage a network via software. SDN technology enables IT administrators to configure their networks using a software application. SDN software is interoperable, meaning it should be able to work with any router or switch, no matter which vendor made it1. SDN is used to build and manage interconnections between cloud resources within the same cloud environment, as it allows for greater flexibility, scalability, and automation of network configuration and operation2. SDN is also a key component of cloud computing, as it enables the creation of virtual networks that can span across different physical infrastructures3. A firewall is a device or software that monitors and controls incoming and outgoing network traffic based on predefined rules. A firewall is used to protect a network from unauthorized access or malicious attacks, but it does not create or manage interconnections between cloud resources4. A virtual private network (VPN) is a technology that creates a secure and encrypted connection over a public network, such as the Internet. A VPN is used to extend a private network across a public network, allowing users to access remote resources as if they were on the same local network. A VPN is not used to build or manage interconnections between cloud resources within the same cloud environment, but rather to connect different cloud environments or users to a cloud environment5. Direct Connect is a service offered by some cloud providers, such as Amazon Web Services (AWS), that allows customers to establish a dedicated network connection between their premises and the cloud provider's data center. Direct Connect is used to bypass the public Internet and provide a more consistent and secure network performance, as well as lower costs and latency. Direct Connect is not used to build or manage interconnections between cloud resources within the same cloud environment, but rather to connect a customer's network to a cloud provider's network. References: What is software- defined networking (SDN)? | Cloudflare, What is Software-Defined Networking? - IBM, Software-defined networking - Wikipedia, What is a firewall? | Cloudflare, What is a VPN? | Cloudflare, [AWS Direct Connect - Amazon Web Services]