Information Technology > QUESTIONS & ANSWERS > AWS, Questions with accurate answers. 100% verified. Rated A. 2022/2023 (All)

AWS, Questions with accurate answers. 100% verified. Rated A. 2022/2023

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AWS, Questions with accurate answers. 100% verified. Rated A. 2022/2023 What is cloud computing? - ✔✔The on-demand delivery of compute power, db storage, applications and other IT resources t... hrough a cloud services platform via the internet w/ pay as you go pricing Advantages of cloud computing? - ✔✔1. Cloud computing provides a simple way to access servers, storage, databases and a broad set of application services over the Internet 2. You don't need to make large upfront investments with hardware and spend a lot of time managing that hardware. 3. You don't have to guess your capacity needs, because you can scale up or scale down the amount of resources you use in minutes. 4. You can focus on projects that differentiate your business, not the infrastructure that supports it. 5. You can provision the right type and size of computing resources. Access as many resources as you need almost instantly, and only pay for what you use. 6. Easily deploy your application in multiple regions around the world with just a few clicks What is infrastructure as a service? - ✔✔Contains the basic building blocks for cloud IT. Provides access to networking features, computers (virtual or on dedicated hardware), and data storage space. Provides you with the highest level of flexibility and management control over your IT resources. What is platform as a service? - ✔✔Removes the need for your organization to manage the underlying infrastructure (usually hardware and OSs) and allows you to focus on deployment and management of your applications What is software as a service? - ✔✔Provides you with a completed product that is run and managed by the service provider. With a SaaS offering you don't need to think about how the service is maintained or how the underlying infrastructure is managed. You only need to think about how you will use that particular piece of software. A common example of a SaaS application is web-based email which you can use to send and receive email without having to manage feature additions to the email product or maintain the servers and operating systems that the email program is running on. Cloud Deployment Model - ✔✔Is fully deployed on the cloud and all parts of the application run on the cloud. Can be built on low level infrastructure pieces or can use higher level services that provide abstraction from the management, architecting, and scaling requirements of the core infrastructure. Hybrid Deployment Model - ✔✔A way to connect infrastructure and applications between cloud based resources and existing resources that are not located in the cloud. The most common method of hybrid deployment is between the cloud and existing on-premises infrastructure to extend, and grow, an organization's infrastructure into the cloud while connecting cloud resources to the internal system. On Premises Deployment Model - ✔✔The deployment of resources on-premises, using virtualization and resource management tools is sometimes called the "private cloud". On-premises deployment doesn't provide many of the benefits of cloud computing but is sometimes sought for its ability to provide dedicated resources AWS Region - ✔✔Is a physical location in the world where we have multiple Availability Zones. Availability Zone - ✔✔Consist of one or more discrete data centers each with redundant power, networking, and connectivity, housed in separate facilities. These Availability Zones offer you the ability to operate production applications and databases that are more highly available, fault tolerant, and scalable than would be possible from a single data center. AWS provides you with the flexibility to place instances and store data within multiple geographic regions as well as across multiple Availability Zones within each AWS Region Security in the Cloud vs. Security in your Physical Data Center - ✔✔You don't take on the cost of maintaining facilities and hardware. You don't have to manage physical servers or storage devices. Instead, you use software-based security tools to monitor and protect the flow of information into and out of your cloud resources. Shared Responsibility Model for Cloud Security - ✔✔AWS manages the security of the cloud while you manage the security in the cloud. This means that you retain control of the security you choose to implement to protect your own content, platform, applications, systems, and networks no differently than you would in an on-site data center Benefits of AWS security - ✔✔1. Keeps your data safe 2. Meets compliance requirements 3. Save Money 4. Scale quickly AWS Command Line Interface - ✔✔Tool to manage your AWS services. Control multiple AWS tools through the command line and automate them through scripts. AWS Management Console - ✔✔User interface used to manage AWS resources Elastic Compute Cloud (EC2) - ✔✔A web service that provides secure, resizable compute capacity in the cloud. It is designed to make web scale computing easier for developers. Benefits of Elastic Compute Cloud (EC2) - ✔✔1. Elastic Web Computing - Enables you to increase or decrease capacity within minutes by creating or deleting EC2 server instances. 2. Completely Controlled - You have complete control over your EC2 instances. You have root access to each one and interact with them as if it was your own machine. 3. Flexible Cloud Hosting Services - You can choose between multiple instance types, operating systems, and software packages. Amazon EC2 allows you to select the memory configuration, CPU, instance storage, and boot partition size that are optimal for your choice of operating system and application. 4. Integrated - EC2 is integrated with most AWS services, such as Amazon Simple Storage Service (Amazon S3), Amazon Relational Database Service (Amazon RDS), and Amazon Virtual Private Cloud (Amazon VPC) to provide a complete, secure solution for computing, query processing, and cloud storage across a wide range of applications. 5. Reliable - EC2 offers a highly reliable environment where replacement instances can be rapidly and predictably commissioned. 6. Secure - Amazon EC2 works in conjunction with Amazon Virtual Private Cloud (VPC) to provide security and robust networking functionality for your compute resources. 7. Inexpensive - Amazon EC2 passes on to you the financial benefits of Amazon's scale. You pay a very low rate for the compute capacity you actually consume Elastic Compute Cloud (EC2) Instance - ✔✔A virtual [Show More]

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