200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ504

Network Fundamentals

What is the difference between 1000BASE-LX/LH and 1000BASE-ZX interfaces?

  • A 1000BASE-LX/LH interoperates with multimode and single-mode fiber, and 1000BASE-ZX needs a conditioning patch cable with multimode.
  • B 1000BASE-ZX interoperates with dual-rate 100M/1G 10Km SFP over multimode fiber, and 1000BASE-LX/LH supports only single-rate
  • C 1000BASE-ZX is supported on links up to 1000km, and 1000BASE-LX/LH operates over links up to 70 km
  • D 1000BASE- LX/LH is supported on links up to 10km, and 1000Base-ZX operates over links up to 70 km
Explanation

1000BASE-LX/LH is a shorter-reach Gigabit Ethernet optic that can run over multimode fiber for up to 550 m and over single-mode fiber for up to 10 km, whereas 1000BASE-ZX is a long-reach single-mode optic designed for links of about 70 km. That distance distinction is the defining difference here.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!