What category/class of cabling does BICSI recommend for the MINIMUM performance level of horizontal balanced twisted-pair cabling?

Question

Options

• ACategory 5e/class D
• BCategory 6/class E
• CCategory SA/class EA
• DCategory 7/class F

• A
  4% (3)
• B
  84% (58)
• C
  9% (6)
• D
  3% (2)

Explanation

BICSI's Telecommunications Distribution Methods Manual (TDMM) designates Category 6/Class E as the minimum performance level for horizontal balanced twisted-pair cabling because it offers a 250 MHz bandwidth rating and significantly better noise immunity than its predecessor, making it more suitable for current and near-future network demands. Category 5e/Class D (option A) was the older baseline standard and, while still widely installed, no longer meets BICSI's current minimum recommendation for new horizontal cabling deployments. Category 6A/Class EA (option C) and Category 7/Class F (option D) both exceed the minimum requirement - Cat 6A supports 500 MHz for 10GBase-T applications, and Cat 7 reaches 600 MHz - so neither represents the minimum floor BICSI sets. For the exam, remember that BICSI "raised the floor" from 5e to 6: the number 6 is the minimum, with anything below it falling short and anything above it being above and beyond.

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