200-301 · Question #773
Which technology can enable multiple VLANs to communicate with one another?
The correct answer is A. inter-VLAN routing using a Layer 3 switch. Inter-VLAN routing, typically performed by a Layer 3 switch or a router, enables communication between devices on different Virtual Local Area Networks (VLANs).
Question
Options
- Ainter-VLAN routing using a Layer 3 switch
- Binter-VLAN routing using a Layer 2 switch
- Cintra-VLAN routing using router on a stick
- Dintra-VLAN routing using a Layer 3 switch
How the community answered
(42 responses)- A93% (39)
- B5% (2)
- D2% (1)
Why each option
Inter-VLAN routing, typically performed by a Layer 3 switch or a router, enables communication between devices on different Virtual Local Area Networks (VLANs).
A Layer 3 switch is capable of performing inter-VLAN routing by having a routing table and processing IP addresses, allowing devices in different VLANs to communicate with each other. This is an efficient method as routing is done directly on the switch hardware.
A Layer 2 switch operates at the data link layer and cannot perform routing between different IP subnets (VLANs).
"Intra-VLAN routing" is a misnomer; routing happens *between* VLANs (inter-VLAN). "Router on a stick" is a method of inter-VLAN routing using a router, but the term "intra-VLAN" is incorrect.
"Intra-VLAN routing" is a misnomer; routing happens *between* VLANs (inter-VLAN).
Concept tested: Inter-VLAN routing methods
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12_2_25_se/configuration/guide/scg/swvlan.html
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