350-401 · Question #255
What type of network device helps reduce the size of a broadcast domain?
The correct answer is D. Router. Routers operate at Layer 3 and inherently create separate broadcast domains for each connected network segment by not forwarding broadcast traffic between interfaces.
Question
What type of network device helps reduce the size of a broadcast domain?
Options
- AHub
- BSwitch
- CLoad balancer
- DRouter
How the community answered
(23 responses)- A4% (1)
- B4% (1)
- D91% (21)
Why each option
Routers operate at Layer 3 and inherently create separate broadcast domains for each connected network segment by not forwarding broadcast traffic between interfaces.
A hub operates at Layer 1 and simply repeats all traffic, expanding a single collision domain and broadcast domain.
A switch operates at Layer 2 and creates separate collision domains but forwards broadcast frames to all ports within the same VLAN, thus staying within a single broadcast domain per VLAN.
A load balancer distributes network traffic across multiple servers and does not primarily segment broadcast domains.
Routers segment networks into different broadcast domains because when a router receives a broadcast frame on one interface, it does not forward that broadcast out of its other interfaces.
Concept tested: Broadcast domain segmentation
Source: https://www.cisco.com/c/en/us/products/switches/what-is-a-broadcast-domain.html
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