3.2 Determine How a Router Makes a Forwarding Decision by Default
Targeted CCNA practice for this exam objective, with an explanation for every answer option.
- Certification
- CCNA
- Domain
- IP Connectivity
- Questions
- 6
Practice CCNA 3.2 Determine How a Router Makes a Forwarding Decision by Default questions with exam-style scenarios, detailed explanations, and option-by-option rationale for this topic area.
Example question from this objective
Each option is explained, so the reasoning behind the distractors is part of the answer.
A static route points to next hop `192.0.2.1`, but the router must use another route to determine which interface reaches 192.0.2.1. What behavior is occurring?
- PortFast edge transition
- Wireless client roaming
- ARP cache poisoning
- Recursive next-hop lookup
PortFast edge transition — PortFast affects spanning-tree behavior on access ports, not IP route recursion.
Wireless client roaming — Wireless roaming is a client mobility event and is unrelated to route resolution.
ARP cache poisoning — ARP cache poisoning is a security attack and does not describe routing table next-hop resolution.
Recursive next-hop lookup — A recursive lookup occurs when the router resolves a next-hop address through another route before forwarding traffic.