A jump server acts as a controlled access point that administrators use to connect to other servers within a network. The main security benefit of using a jump to facilitate remote management is that it reduces the attack surface by limiting entry points to the secure network, and it allows for the consolidation of auditing and logging on a single access point. While a jump server provides an additional layer and could be seen as more complex, complexity is not the primary reason. High availability is a part of network resilience and failover strategies, which is not directly related to the use of a jump server. Increased network throughput is more related to performance improvement rather than a security benefit.