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What is a VPC?

Contents

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Course Introduction
1
Introduction
PREVIEW3m 3s
VPC Fundamentals
2
What is a VPC?
PREVIEW2m 25s
3
Subnets
PREVIEW16m 20s
VPC Security and Control
VPC Connectivity
AWS Transit Gateway
DNS & Content Delivery on AWS
17
Amazon Route 53
PREVIEW6m 12s
What is a VPC?
Overview
Difficulty
Beginner
Duration
2h 7m
Students
8
Description

In this section of the AWS Certified: SAP on AWS Specialty learning path, we introduce you to the various Networking services currently available in AWS that are relevant to the PAS-C01 exam.

Learning Objectives

  • Identify and describe the various Networking services available in AWS
  • Describe how to configure an Amazon Virtual Private Cloud (VPC)
  • Understand how to control network traffic via Security Groups and Network Access Control Lists (NACLs)
  • Describe AWS-managed services for Domain Name System (DNS) and Content Delivery Network (CDN)
  • Understand how the AWS global infrastructure is used in conjunction with services like Route 53, CloudFront, and the AWS Global Accelerator to reduce latency and improve application performance for end-users
  • Identify networking and VPC configuration options for SAP environments running on AWS

Prerequisites

The AWS Certified: SAP on AWS Specialty certification has been designed for anyone who has experience managing and operating SAP workloads. Ideally you’ll also have some exposure to the design and implementation of SAP workloads on AWS, including migrating these workloads from on-premises environments. Many exam questions will require a solutions architect level of knowledge for many AWS services, including AWS Networking services. All of the AWS Cloud concepts introduced in this course will be explained and reinforced from the ground up.

Transcript

Hello and welcome and I'm going to be talking to you about VPCs. Virtual Private Clouds. Now to understand what a VPC is, let's just take a look at the AWS infrastructure. 

So, here is the AWS Cloud. Very simple. And a VPC resides inside of the AWS Cloud and it's essentially your own isolated segment of the AWS Cloud itself, so here is your VPC sitting inside the AWS Cloud. 

Now by default when you create your VPC, the only person that has access to this is your own AWS account, just you. It is totally isolated and no one else can gain access to your VPC other than your own AWS account. Now obviously there are millions upon millions of other VPCs within the AWS network created by other customers all across the world. So, there are millions of customer VPCs. However, they do not have access to your VPC and likewise, you do not have access to their VPC. 

Now what do you use a VPC for? Well, essentially it allows you to start deploying resources within your VPC, for example, different compute resources or storage or database and other network infrastructure among others and this allows you to start building and deploying your solutions within the Cloud. 

Now by default from a limitation perspective, you are allowed up to five VPCs per region per AWS account and it's very simple to create a VPC. All you need to do is to give it a name, when you create your VPC and also define an IP address range that the VPC can use and this is done in the form of a CIDR block which stands for Classless Inter-Domain Routing. And I'll talk more about that when I talk more about subnets in a few minutes. 

So, just to recap at a high level, simply put, a VPC is an isolated segment of the AWS public cloud that allows you to provision and deploy resources in a safe and secure manner. I now want to dive deeper into the VPC architecture and start talking about subnets and how you can segment your VPC out into different areas across multiple availability zones for resiliency and high availability, so let's take a look.

About the Author
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Stuart Scott
AWS Content Director
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190740
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Stuart has been working within the IT industry for two decades covering a huge range of topic areas and technologies, from data center and network infrastructure design, to cloud architecture and implementation.

To date, Stuart has created 150+ courses relating to Cloud reaching over 180,000 students, mostly within the AWS category and with a heavy focus on security and compliance.

Stuart is a member of the AWS Community Builders Program for his contributions towards AWS.

He is AWS certified and accredited in addition to being a published author covering topics across the AWS landscape.

In January 2016 Stuart was awarded ‘Expert of the Year Award 2015’ from Experts Exchange for his knowledge share within cloud services to the community.

Stuart enjoys writing about cloud technologies and you will find many of his articles within our blog pages.