CompTIA Security+ Exam Prep

Answer: B - Dedicated links are single links that are pre-established for the purposes of WAN communication between two destinations. It is dedicated, meaning only the destination points can communicate with each other. This link is not shared by any other entities at any time. This was the main way companies communicated in the past because not as many choices were available as there are today. Establishing a dedicated link is a good idea for two locations that will communicate often and require fast transmission and a specific bandwidth, but it is expensive compared to the possible technologies that enable several companies to share the same bandwidth and also share the cost.