Which statement describes a key benefit of manually configured static routes?

• A. Improves security, and resource efficiency (less bandwidth usage and no CPU cycles are used to calculate and communicated route)
• B. They automatically adapt to topology changes
• C. They require more CPU cycles to process
• D. They always find the best path in failure scenarios

Answer: (A)

Manually configured static routes minimize routing protocol overhead. Because these routes are entered by an administrator and not learned from or shared via a dynamic routing protocol, the router doesn’t participate in routing updates or convergence calculations. This reduces the amount of bandwidth used for routing messages and the CPU cycles spent processing dynamic routing protocols, making the device more efficient. It also limits the routing information that could be corrupted or misinterpreted from external sources, giving a more controlled security posture in environments where the network topology is stable and well-known.

That’s why the statement about improving security and resource efficiency fits best. Static routes don’t automatically adapt to topology changes, so they won’t adjust to failures unless you manually modify them. They also don’t guarantee the best path in failure scenarios, since a fixed next hop may become unavailable.