Practice Quiz

CompTIA Network+ Exam Review

Category - Networking

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Which one of the following can significantly increase congestion on an Ethernet network?
  1. Subdividing the network into different VLANs
  2. Increasing the number of collision domains
  3. Adding more hubs in to the network
  4. Adding more switches in to the network
Explanation
Answer - C - Adding more and more hubs in to the network can significantly increase congestion on the Ethernet network.

Key Takeaway: A hub is a common connection point for devices on a network. It has multiple connection ports and is used to connect segments of a LAN. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets. So if more and more hubs are added to the Ethernet network, the amount of broadcasts increase and network performance is affected adversely.
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