ANS-C01 Question 139
Select 3You are setting up a Direct Connect connection between your on-premises data center and your AWS environment. To optimize performance and ensure efficient Layer 2 communication, you are tasked with configuring the connection using VLANs and enabling features for high throughput. Which configuration steps should you take?
- A
Configure a unique VLAN ID for your Direct Connect connection.
- B
Enable jumbo frames on your network devices and AWS Direct Connect.
- C
Use a Link Aggregation Group (LAG) to combine multiple Direct Connect connections into a single logical connection.
- D
Configure multiple VLANs on the same Direct Connect connection without using a Direct Connect Gateway.
- E
Use standard Ethernet frames to ensure compatibility with AWS Direct Connect.
Show answer and explanation
Correct answers: A, B, C
Explanation
To optimize performance and ensure efficient Layer 2 communication, you must configure a unique VLAN ID, enable jumbo frames for high throughput, and use a Link Aggregation Group (LAG) if you need to combine multiple Direct Connect connections. VLAN tagging and jumbo frames are critical for maximizing the performance and reliability of your AWS Direct Connect connection. Configuring multiple VLANs without a Direct Connect Gateway or using standard Ethernet frames would lead to suboptimal performance or unsupported configurations.
- A. Correct.
Correct: AWS Direct Connect requires VLAN tagging to segregate traffic. A unique VLAN ID is essential for proper configuration and separation of traffic.
- B. Correct.
Correct: Enabling jumbo frames reduces overhead and improves throughput by allowing larger payloads in each frame. This is particularly beneficial for high-throughput connections like Direct Connect.
- C. Correct.
Correct: Using a Link Aggregation Group (LAG) allows you to combine multiple physical Direct Connect connections into a single logical interface, increasing bandwidth and providing redundancy.
- D. Incorrect.
Incorrect: While you can configure multiple VLANs on a single Direct Connect connection, this requires a Direct Connect Gateway to route traffic across multiple VPCs. Without a Direct Connect Gateway, this setup is not supported.
- E. Incorrect.
Incorrect: AWS Direct Connect supports jumbo frames and VLAN tagging for optimal performance. Using standard Ethernet frames (1500 MTU) is not recommended as it limits performance.