In Unit Grade 2, what is the recommended category for the four-pair UTP cable?

In Unit Grade 2, what is the recommended category for the four-pair UTP cable?

• A. Cat5e
• B. Cat3
• C. Cat7
• D. Cat6 (recommended)

Answer: (D)

Choosing the right category for a four-pair UTP cable is about ensuring enough bandwidth with good signal integrity for typical Ethernet needs. Cat6 is the recommended choice because it offers tighter specifications for crosstalk and return loss and supports higher frequencies than Cat5e or Cat3, giving reliable performance for current Ethernet speeds and headroom for future upgrades over standard cable lengths. Cat5e can handle common 1 Gbps networks but has less margin in real installations, Cat3 is older and slower, and Cat7 is shielded and generally unnecessary and more costly for standard building wiring. So Cat6 provides a solid balance of performance and cost for Unit Grade 2.

Choosing the right category for a four-pair UTP cable is about ensuring enough bandwidth with good signal integrity for typical Ethernet needs. Cat6 is the recommended choice because it offers tighter specifications for crosstalk and return loss and supports higher frequencies than Cat5e or Cat3, giving reliable performance for current Ethernet speeds and headroom for future upgrades over standard cable lengths. Cat5e can handle common 1 Gbps networks but has less margin in real installations, Cat3 is older and slower, and Cat7 is shielded and generally unnecessary and more costly for standard building wiring. So Cat6 provides a solid balance of performance and cost for Unit Grade 2.