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

MACsec for Direct Connect:

MACsec (Media Access Control Security) is an IEEE standard (802.1AE) for encrypting traffic at Layer 2. AWS Direct Connect supports MACsec on dedicated connections of 10 Gbps and 100 Gbps capacity. This ensures that all WAN traffic over the Direct Connect connection is encrypted, meeting regulatory requirements.

Does Not Affect Bandwidth:

MACsec operates at the physical layer (Layer 2), and its encryption overhead is negligible. This ensures that the company's bandwidth capacity is not affected.

Existing Direct Connect Connection:

Configuring MACsec on the port of the existing Direct Connect connection avoids the need to establish a new connection, reducing complexity and costs.

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