AWS PrivateLink provides private connectivity between VPCs, AWS services, and on-premises networks without exposing traffic to the public internet, using interface VPC endpoints.
What it enables
PrivateLink lets you reach a service (an AWS service, a SaaS partner, or your own service in another VPC) through a private endpoint inside your VPC, so traffic never traverses the internet. The tell is “access a service privately” or “expose my service to other VPCs securely without peering.”
Test yourself
A company wants to expose an internal application to other VPCs privately, without VPC peering and without any traffic crossing the internet. What should they use?
- VPC peering
- AWS PrivateLink (interface endpoint)
- An Internet Gateway
- A NAT Gateway
👉 Click to reveal the answer & explanation
Correct answer: B. PrivateLink exposes a service through interface endpoints so other VPCs reach it privately, with no peering and no internet exposure. Peering (A) connects whole VPCs and doesn’t scale as cleanly; Internet Gateway (C) and NAT (D) involve internet routing.
Related topics
VPC endpoints · Amazon VPC · Transit Gateway
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