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These VPC’s are existing in the AWS roundabout. This AWS around a geographic area. It can be around the world in Amazon's clustered data centers. It is lived in that assigned geographical area only to maintain customer distribution. So that in different areas customers can not set up another VPC in another geographical area.
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If you want to connect Amazon EC2-classic instances to VPC, you have to use ClassicLink. This work only within the same region and this makes use of private IP addresses. Its working is simple- you just have to enable ClassicLink in your VPC account and associate a security group from VPC to EC2-classic instance.
This type of questions are the additions AWS VPC interview questions that you shouldn’t miss so prepare yourself with the answer.
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This AWS VPC provides the given below features:
IPv4 and IPv6 address book.
Internet connectivity.
Subnet creation.
Route tables.
Elastic IP addresses.
Network/ Subnet security.
Additional networking services.
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Yes, VPC works globally. All its components are also working globally. Obviously, they are divided into zone to crate Subnet networks.
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If we want to build up our custom VPC, please follow the given below steps:
First, we need to create a virtual private cloud.
After that need to create subnets.
Now need to create an internet gateway.
Need to attach internet gateway with VPC.
Need to create a routing table.
Now add that created gateway in the new route table.
Do subnet association with the routing table.
Need to create a database server for the private subnet and a web server for the public subnet.
Need to create a new secured group of NAT.
Need to add HTTP and HTTPS inbound rules to allow traffic from private subnet IP.
Need to create elastic IP.
Tag this elastic IP with NAT.
Now deactivate the check for NAT.
Need to add this NAT in the base route table initially.
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AWS VPC classic link is most important to connect EC2 instance classic form with the VPC using IP address. We need to activate this link in the VPC account. All by default rules will be applicable as per the VPC security group between the EC2 classic instance and the instance in the VPC.
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One data center can connect hardware VPN with AWS VPC. AWS supports internet protocol security VPN connections only. The encrypted data will be transferred. VPN connection helps in data security while transiting. No internet gateway is required to establish a hardware VPN connection with AWS VPC.
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Beginners who were trying AWS VPC interview questions for the first time used to get confused with this question, since these terms look similar.
Actually, VPS or Virtual Private Server is none other than the host server offered by web hosting companies like BlueHost and GoDaddy (These companies also provide shared hosting services wherein the server is shared by several users). Here, a single host divided to multiple virtual units, each having an independent function. Each of these units is virtual private servers which can work without depending on one another. You’ll get access to the complete physical server including root access.
In the case of VPC, its functions are similar to that of a VPS but its servers don’t have to place in a single location.