Cisco Specialist Certification Exam 642-651

What is the maximum length of a 1000BASE-T cable segment?

A. 25 meters
B. 75 meters
C. 100 meters
D. 182 meters
E. 550 meters
Answer: B
Explanation:
1000BASE-T uses UTP cable 642-591 with a maximum transmission distance of 75 m.

Incorrect Answers:
A: 1000BASE-CX uses STP cable with a maximum transmission distance of 25 m.
C:
Leading the way in IT testing and certification tools, www.certifyme.com
- 432 -


10BASE-T and 100BASE-TX uses UTP 642-651 cable with a maximum transmission distance of
100 m.
D: 10BASE2 uses thin coaxial cable with a maximum transmission distance of 182 m.
E: 1000BASE-SX uses multimode 642-652 fiber optic cable that has a maximum transmission
distance of 550 m.

References:
David Groth and Dan Newland, A+ Complete Study 642-964 Guide (2nd Edition), Sybex,
Alameda CA, 2002, pp. 325,327.
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda
CA, 2005, pp. 30-31