In routing, which distance value takes precedence?

• A. The smallest distance value
• B. The largest distance value
• C. The average distance value
• D. The distance value is ignored

Answer: (A)

When a router has multiple routes to the same destination, it decides which one to use based on the distance value assigned to each route. The distance represents how trustworthy or preferred the route source is; the smaller the distance, the higher the priority. Therefore, the route with the smallest distance is chosen and installed in the routing table to forward packets. If distances are equal, other factors like the protocol’s internal metrics or tie-breakers come into play. For example, directly connected routes often have a very low distance (sometimes 0), static routes are next (often 1), and routes learned from dynamic protocols have higher distances, so they’re chosen only when no lower-distance options exist.