CCNA R&S Exam Prep Question of the Week

CCNAMainQOW

A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. How can you accomplish this task using the fewest physical interfaces?

A. Add a second router to handle the VLAN traffic.
B. Use a hub to connect the four VLANS with a Fast Ethernet interface on the router.
C. Implement a router-on-a-stick configuration.
D. Add two more Fast Ethernet interfaces.

The correct answer is C.

“Router on a stick” is a term used when trunking is configured on the router. Sub-interfaces are configured and mapped to VLANs to allow for interVLAN routing. In this case, only one physical interface is needed.

Related Resources
CCNA Exam Prep Mobile App

Related Courses
CCNAX v2.0 — CCNA Routing and Switching Boot Camp
ICND1 v2.0 — Interconnecting Cisco Networking Devices, Part 1
ICND2 v2.0 — Interconnecting Cisco Networking Devices, Part 2

Please support our Sponsors here :