What is a primary advantage of using a Network Load Balancer?

The primary advantage of using a Network Load Balancer is its ability to handle high-throughput, low-latency traffic very efficiently. This attribute makes it particularly well-suited for applications that require rapid processing of large volumes of requests, such as real-time gaming or high-frequency trading systems.

Network Load Balancers operate at the Transport Layer (Layer 4) of the OSI model, which allows them to make forwarding decisions based on IP address and TCP/UDP ports without the added overhead of inspecting the content of the packets. This results in lower latencies and higher throughput compared to load balancers that operate at the Application Layer (Layer 7). The design and architecture of Network Load Balancers are specifically optimized for these scenarios, enabling them to manage millions of requests per second while maintaining low latency.

The other options, while they might have features important in specific use cases, do not capture the primary purpose of Network Load Balancers. Multi-protocol routing and content-based routing are more characteristic of Application Load Balancers, and advanced SSL features are typically associated with features available in Application Load Balancers as well. Therefore, the focus on high-throughput and low-latency traffic establishes the Network Load Balancer's defining advantage in the AWS