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

Vendor: Cisco
Product: 200-301
Update on: Dec 20, 2025
Questions: 1237

Cisco 200-301 Question Answer

1000BASE-ZX is supported on links up to 1000km, and 1000BASE-LX/LH operates over links up to 70 km.

1000BASE-LX/LH interoperates with multimode and single-mode fiber, and 10008ASE-ZX needs a conditioning patch cable with a multimode.

1000BASE-LX/LH is supported on links up to 10km, and 1000BASE-ZX operates over links up to 70 km

1000BASE-ZX interoperates with dual-rate 100M/1G 10Km SFP over multimode fiber, and 1000BASE-LX/LH supports only single-rate.

Cisco 200-301 Summary

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