Learn which device is required for inter-VLAN communication for the CCNA 200-301 exam. Understand how a Layer 3 switch enables routing between VLANs using SVIs, providing efficient and high-speed inter-VLAN routing.
Table of Contents
Question
A company is implementing VLANs and needs to ensure inter-VLAN communication. Which device is required?
A. Layer 2 Switch
B. Hub
C. Router
D. Layer 3 Switch
E. Bridge
Answer
D. Layer 3 Switch
Explanation
A Layer 3 switch can perform routing between VLANs using SVIs (Switched Virtual Interfaces) or routed interfaces, eliminating the need for an external router.
A Layer 3 switch is required to enable inter-VLAN communication. While Layer 2 switches can segment traffic into VLANs, they cannot route traffic between VLANs. Layer 3 switches combine traditional switching with routing capabilities, allowing them to forward traffic between VLANs using Switch Virtual Interfaces (SVIs) or routed interfaces. This hardware-based routing is significantly faster than using a traditional router and eliminates the need for external routing devices in most enterprise environments. Each VLAN is assigned an SVI with an IP address, which serves as the default gateway for devices in that VLAN, and the Layer 3 switch routes traffic between these SVIs efficiently.
Cisco Certified Network Associate CCNA 200-301 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Cisco Certified Network Associate CCNA 200-301 exam and earn Cisco Certified Network Associate CCNA 200-301 certification.