A network administrator is comparing two routing algorithms: one that counts hops to determine the best path, and another that calculates cost based on link quality. Which of the following best explains this difference?
🧩 Concept: Topology and Metrics
🧠 Symptoms / Clues:
Distance vector uses hop count
Link state uses link quality or cost
Hybrid protocols combine both approaches
🔍 Diagnosis:
Routing algorithms determine best paths based on their type and metrics. Distance vector protocols (like RIP) count hops, while link state protocols (like OSPF) analyze overall topology and link costs.
🛠️ Fix / Solution:
Choose distance vector for simple networks; link state or hybrid for larger, complex ones requiring faster convergence and efficiency.
🎨 Analogy:
Distance vector = counting bus stops; link state = checking all possible roads and choosing the fastest.
💡 Exam Tip:
“Hops,” “broadcast updates,” “link cost,” or “database of entire network” → identify algorithm type.
