Drag and drop each OSPF packet type on the left to its matching function on the right.
Drag a concept onto its matching description — or click a concept then click the description.
Discovers and maintains OSPF neighbor adjacencies
Contains a summary of the link-state database for initial synchronization
Requests specific link-state advertisements from a neighbor
Carries one or more full LSAs during flooding or in response to an LSR
Acknowledges receipt of an LSU to ensure reliable flooding
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Hello: Discovers and maintains OSPF neighbor adjacencies
Hello packets discover and maintain neighbor relationships. DBD (Database Description) packets contain a summary of the LSDB for synchronization. LSR (Link-State Request) packets request specific LSAs. LSU (Link-State Update) packets carry full LSAs in response to LSRs or during flooding. LSAck (Link-State Acknowledgment) packets confirm receipt of LSUs.
Visual reference
Quick reference
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
About these practice questions
Courseiva writes every 350-401 question from scratch — 1,175 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.