ANS-C01 Exam Dumps : Amazon AWS Certified Advanced Networking - Specialty

To use AWS PrivateLink, you need to create interface type VPC endpoints for the services that you want to access privately from your VPC1. These endpoints appear as elastic network interfaces (ENIs) with private IPs in your subnets2. To enable DNS resolution for these endpoints, you need to set the enableDnsSupport attribute to True for your VPC, and enable DNS support for each endpoint3. You also need to ensure that the VPC endpoint policy allows communication between your VPC and the service4. You do not need to create any route table entries or Route 53 hosted zones for the endpoints, as they are not required for PrivateLink5.

AWS PrivateLink FAQs – Amazon Web Services 2: AWS PrivateLink and service endpoint - Amazon EC2 Overview and Networking Introduction for Telecom Companies 3: VPC Endpoints: Secure and Direct Access to AWS Services 4: AWS PrivateLink and service endpoint - Amazon EC2 Overview and Networking Introduction for Telecom Companies 5: AWS Private Link vs VPC Endpoint - Stack Overflow

When a client queries a DNS server for a domain name, the DNS server typically starts by looking for NS records to determine which name servers are authoritative for the domain. The DNS server then queries the authoritative name servers to obtain the information about the domain that the client requested. For example, suppose you own the domain example.com, but you want to delegate control of the subdomain sub.example.com to a different set of name servers. You would create NS records in the example.com zone file that point to the name servers for sub.example.com. This tells DNS servers that the name servers for sub.example.com are authoritative for that subdomain, and they should query those name servers for any requests related to sub.example.com.