CISSP-ISSAP · Question #133
You work as a Network Administrator for McNeil Inc. The company has a TCP/IP-based network. Performance of the network is slow because of heavy traffic. A hub is used as a central connecting device…
The correct answer is C. Switch. A Switch replaces a hub to reduce network congestion because it intelligently forwards frames only to the specific destination port using MAC address tables, eliminating unnecessary broadcast traffic that hubs create by sending data to all connected devices. A Repeater (A)…
Question
You work as a Network Administrator for McNeil Inc. The company has a TCP/IP-based network. Performance of the network is slow because of heavy traffic. A hub is used as a central connecting device in the network. Which of the following devices can be used in place of a hub to control the network traffic efficiently?
Options
- ARepeater
- BBridge
- CSwitch
- DRouter
How the community answered
(26 responses)- A4% (1)
- B12% (3)
- C81% (21)
- D4% (1)
Explanation
A Switch replaces a hub to reduce network congestion because it intelligently forwards frames only to the specific destination port using MAC address tables, eliminating unnecessary broadcast traffic that hubs create by sending data to all connected devices. A Repeater (A) simply amplifies signals to extend range - it does nothing to reduce traffic. A Bridge (B) can segment a network into two collision domains but is limited to two ports and lacks the granular per-port traffic control a switch provides. A Router (D) operates at Layer 3 and connects separate networks, making it overkill (and more expensive) for simply replacing a hub within a single LAN segment.
Memory tip: Think "S for Smart" - a Switch is the smart hub that remembers which device lives on which port, so it stops shouting data at everyone and whispers it only to the right recipient.
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