When using unshielded twisted pair (UTP) for a 100BaseT Ethernet network, which cable type is recommended?

For a 100BaseT Ethernet network, the recommended cable type is Category 5 (Cat 5). This is primarily due to its ability to effectively support data transmission speeds of up to 100 Mbps over distances of up to 100 meters, which aligns perfectly with the requirements of the 100BaseT standard.

Cat 5 cables are designed to minimize crosstalk and interference through their twisted pair design, making them suitable for the fast-paced transmission needed in 100BaseT networks. Additionally, Cat 5 supports 100 MHz bandwidth, which is essential for handling the data traffic without significant loss or degradation.

While other categories like Cat 6 and Cat 7 offer higher performance with greater bandwidth and speed capabilities useful for more advanced networking needs, they are not required for a 100BaseT standard, making Cat 5 the appropriate choice in this context. Using a higher category cable would still work; however, it might increase costs unnecessarily without providing tangible benefits for a 100 Mbps network. Thus, Category 5 is both sufficient and efficient for the requirements of a 100BaseT Ethernet installation.