Correct answer D
* A VPC is a logically isolated piece of AWS cloud dedicated to your company. This means, you can run applications on overly provisioned, highly available, and redundant infrastructure setup and it is managed by AWS. All the complexity of setting up a data center with cables, server racks, hardware, power supply, etc. all are managed by AWS.
* A VPC belongs to a region.
* A VPC spans all availability zones.
* You can have multiple VPCs per region.
* VPC contains one or more subnets.
* A Subnet is tied to a single availability zone.
* EC2 instances launch into subnets.
The correct answer is D. A VPC can span all Availability Zones within an AWS Region.
Here's a breakdown of VPC scope:
Regional Construct: A VPC is a logically isolated virtual network that exists within a single AWS Region. You cannot make a VPC span multiple Regions.
Availability Zone Coverage: A VPC can have subnets located in different Availability Zones (AZs) within the same Region. This improves fault tolerance by distributing your resources across multiple AZs.
Subnet Restrictions: A subnet, on the other hand, must reside within a single Availability Zone.
A VPC is a logically isolated section of the AWS cloud where users can launch resources such as Amazon EC2 instances, Amazon RDS databases, and other AWS services. It provides control over networking aspects, including IP addressing, subnets, routing tables, and network gateways.
When creating a VPC, users can choose the AWS Region where it will reside. Within that Region, a VPC can span multiple Availability Zones. Availability Zones are separate data centers within a given Region, each with redundant power, networking, and connectivity. By spanning multiple Availability Zones, a VPC can provide high availability and fault tolerance for resources deployed within it.
Uma VPC pode ser configurada para ter um ou mais subnets (sub-redes) em diferentes zonas de disponibilidade, para garantir alta disponibilidade e tolerância a falhas.
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