What is the typical maximum frequency rating for Cat6 ethernet cabling?

• A. 125 MHz
• B. 250 MHz
• C. 500 MHz
• D. 1000 MHz

Answer: (B)

This question tests the frequency rating of Cat6 cabling, which defines its usable bandwidth. Cat6 is specified to operate up to 250 MHz, a step up from Cat5e’s 100 MHz and this higher rating helps maintain signal integrity and reduce crosstalk over the standard 100-meter link. That bandwidth supports the data rates Cat6 is designed for, including 1 Gbps up to 100 meters, and explains why higher performance for 10 Gbps is typically associated with Cat6a, which is rated around 500 MHz. The other values aren’t the standard Cat6 maximums: 125 MHz is below the Cat6 spec, 500 MHz is the Cat6a rating, and 1000 MHz corresponds to even higher-category cabling. Therefore, 250 MHz is the typical maximum frequency rating for Cat6.