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010-151 · Question #50
010-151 Question #50: Real Exam Question with Answer & Explanation
The correct answer is C. 1000 Mb/s. Category 5 UTP cable supports a maximum data transmission speed of 1000 Mb/s (1 Gbps), as the 1000BASE-T standard was designed to operate over Cat 5 four-pair cabling.
Question
Up to what speed can Category 5 UTP cable transmit data?
Options
- A10 Mb/s
- B100 Mb/s
- C1000 Mb/s
- D10000 Mb/s
Explanation
Category 5 UTP cable supports a maximum data transmission speed of 1000 Mb/s (1 Gbps), as the 1000BASE-T standard was designed to operate over Cat 5 four-pair cabling.
Common mistakes.
- A. 10 Mb/s describes the maximum throughput of Category 3 UTP cable used for legacy 10BASE-T Ethernet, which is far below Cat 5 capability.
- B. 100 Mb/s is the speed supported by 100BASE-TX over Cat 5, but it is not the maximum - Cat 5 can also carry 1000BASE-T at 1000 Mb/s.
- D. 10000 Mb/s (10 Gbps) requires Category 6A or higher cable because 10GBASE-T demands 500 MHz bandwidth and far stricter alien crosstalk margins than Cat 5 provides.
Concept tested. Category 5 UTP cable maximum rated speed
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