xxxxxxxxxx
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.
xxxxxxxxxx
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.
xxxxxxxxxx
An Internet Gateway is highly available, horizontally scaled VPC component. Gateways establish coherent connections between your Amazon VPC network and the internet. There can be only one gateway associated with each VPC. These are the VPC components that provide NAT (Network Address Translation) for instances which have already assigned public IP addresses. In the case of internet routable traffic, such a gateway provides a target in your VPC route tables.
xxxxxxxxxx
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.
xxxxxxxxxx
Yes, VPC works globally. All its components are also working globally. Obviously, they are divided into zone to crate Subnet networks.
xxxxxxxxxx
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.
xxxxxxxxxx
If we want to use a classic link, then we need to activate at least one VPC in our account, particularly for the classic link. Now we need to tag one security group from the VPC with the expected classic link. Now our EC2 classic instance is connected to a VPC. This classic link is now a member of a security group in VPC. Please remember that the EC2 classic instance can not be connected to more than one VPC at a time.
xxxxxxxxxx
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.
xxxxxxxxxx
Yes, we can not connect classic links with classes inter-domain routing. That router range will be 10.0.0.0/8, with the exception of 10.0.0.0/16 and 10.1.0.0/16. Even if the VPC route table entry points to 10.0.0.0/8 classless inter-domain routing space to target other than local only.
xxxxxxxxxx
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.