CompTIA Network+ Practice Test

How does SD-WAN ensure optimal performance for varied connection types?

1. By mandating the use of one specific connection type

2. Through transport agnostics, allowing any underlying network

3. By controlling only fiber-based connections

4. Through dedicated hardware management tools

The correct answer is: Through transport agnostics, allowing any underlying network

SD-WAN, or Software-Defined Wide Area Networking, ensures optimal performance for varied connection types through its ability to leverage transport agnostics. This means that SD-WAN solutions are designed to work over any underlying network infrastructure, such as MPLS, LTE, broadband Internet, or even satellite connections. This capability allows organizations to utilize a combination of these connection types based on their performance characteristics, cost-effectiveness, and availability. By dynamically choosing the best path for data packets in real-time, SD-WAN can optimize for factors such as latency, jitter, and packet loss, ensuring that applications perform reliably and efficiently regardless of the underlying network technology. The other options do not reflect the flexibility and performance optimization that SD-WAN provides. For instance, enforcing a single specific connection type would eliminate the advantages of using diverse connection types, thereby reducing overall performance capabilities. Similarly, limiting control to fiber-based connections excludes the benefit of other connection methods that may be more accessible or cost-effective in certain locations. Finally, reliance on dedicated hardware management tools does not align with the flexible and software-driven nature of SD-WAN, which prioritizes centralized management and orchestration over proprietary hardware solutions.