A company is migrating its on-premises data warehouse to Amazon Redshift. What methods can be used to establish a private connection from on-premises network to Amazon Redshift (Select TWO)?

Answer options:

A.VPC Peering
B.Site-to-site VPN
C.Direct Connect
D.PrivateLink Interface Endpoint
E.PrivateLink Gateway Endpoint

Answer: B and C
Option A is incorrect because VPC peering is used to establish connectivity between two Amazon VPC’s.
Option B is CORRECT because Site-to-site VPN can be used to establish a secure and private connection between an on-premises network and Amazon VPC over the Internet.
Option C is CORRECT because AWS Direct Connect can be used to establish a secure and private connection between an on-premises network and Amazon VPC over a dedicated line.
Options D and E are incorrect because PrivateLink endpoints are used to integrate AWS services to Amazon VPC without the use of Internet Gateway.
Reference:
https://docs.aws.amazon.com/redshift/latest/mgmt/network-isolation.html