Your manager asks you to look into some upgrades for your...

Your manager asks you to look into some upgrades for your network. The current network is a 10Base2 system, and you have been experiencing numerous cable problems that have been hard to track down. As a result, you have decided to upgrade to a 10BaseT system. On the networking vendor's price list are both active and passive hubs. The passive hubs are considerably cheaper than the active ones, and you are tempted to opt for them so that you come in under budget. A colleague advises against the purchase of passive hubs. What is the primary difference between an active hub and a passive hub? R. Passive hubs do not offer any management capabilities. B. Passive hubs cannot be used in full-duplex mode. C. Passive hubs do not regenerate the data signal. D. Passive hubs forward data to all ports on the hub, not just the one for which they are intended.

Your manager asks you to look into some upgrades for your network. The current network is a 10Base2 system, and you have been experiencing numerous cable problems that have been hard to track down. As a result, you have decided to upgrade to a 10BaseT system. On the networking vendor's price list are both active and passive hubs. The passive hubs are considerably cheaper than the active ones, and you are tempted to opt for them so that you come in under budget. A colleague advises against the purchase of passive hubs. What is the primary difference between an active hub and a passive hub?
R. Passive hubs do not offer any management capabilities.
B. Passive hubs cannot be used in full-duplex mode.
C. Passive hubs do not regenerate the data signal.
D. Passive hubs forward data to all ports on the hub, not just the one for which they are intended.

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Key Concepts

Passive Hub

A passive hub serves as a simple connection point that splits the signal between multiple ports without any amplification or regeneration. It merely passes the electrical signal along, which may lead to signal degradation if the network span is extensive or if there are many interconnections. Passive hubs are generally less expensive but lack the robustness and performance improvements provided by active hubs.

Active Hub

An active hub is a network device that not only rebroadcasts incoming data signals to multiple ports but also amplifies and regenerates the signals. This regeneration ensures the signal maintains its integrity over longer distances or through multiple connections. Active hubs may also include management features and support full-duplex communications, making them more versatile and reliable in a network environment.

Signal Regeneration

Signal regeneration is the process of receiving a weakened network signal, restoring its original strength and clarity, and then retransmitting it. This is crucial in maintaining data integrity across a network, especially over longer distances. Devices such as active hubs perform signal regeneration to prevent issues like data loss or corruption, whereas passive hubs do not have this capability, potentially leading to network reliability problems.

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