Security Characteristics of VPC Peering for Connecting Two VPC Networks

Security Characteristics of VPC Peering

Question

Which two security characteristics are related to the use of VPC peering to connect two VPC networks? (Choose two.)

Answers

Explanations

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Sure, I'd be happy to explain the security characteristics related to the use of VPC peering to connect two VPC networks.

VPC (Virtual Private Cloud) peering is a way to connect two VPC networks, enabling instances in either network to communicate with each other as if they are on the same network. Here are the two security characteristics related to the use of VPC peering:

  1. Non-transitive peered networks: When two VPC networks are peered, they form a direct connection between them. However, this connection does not extend to other networks that might be connected to either of the peered networks. This means that peering is non-transitive, and only the directly peered networks can communicate with each other. This characteristic ensures that traffic between VPC networks is secure and does not traverse untrusted networks.

  2. Ability to share specific subnets across peered networks: VPC peering allows specific subnets within a VPC network to be shared with another peered VPC network. This capability provides more granular control over network traffic, allowing administrators to specify which subnets are allowed to communicate with each other. This characteristic ensures that only authorized traffic is allowed between the peered networks, reducing the risk of unauthorized access or data leakage.

To summarize, VPC peering provides non-transitive peered networks and the ability to share specific subnets across peered networks, which help to ensure the security of the connected VPC networks. However, it's worth noting that VPC peering is not a replacement for network security measures such as firewalls and VPNs. Administrators still need to implement appropriate security controls to protect their VPC networks from threats.