Which cable type must be used to interconnect one switch using 1000 BASE-SX GBIC modules and another switch using 1000 BASE-SX SFP modules?

The correct answer is A. LC to SC. All SFP and SFP+ optics require LC connectors so the question becomes when you need single mode fiber or multi mode fiber but the connector type is clear. SC square connectors are too big to fit in a SFP or SFP+. GBIC is commonly used with Gigabit Ethernet and Fibre Channel. But

Submitted by lars.no· Mar 5, 2026Network Access

Question

Which cable type must be used to interconnect one switch using 1000 BASE-SX GBIC modules and another switch using 1000 BASE-SX SFP modules?

Options

ALC to SC
BSC to SC
CLC to LC
DSC to ST

How the community answered

(48 responses)

A
88% (42)
B
2% (1)
C
2% (1)
D
8% (4)

Explanation

All SFP and SFP+ optics require LC connectors so the question becomes when you need single mode fiber or multi mode fiber but the connector type is clear. SC square connectors are too big to fit in a SFP or SFP+. GBIC is commonly used with Gigabit Ethernet and Fibre Channel. But its applications are not limited to these two types. There is also Fast Ethernet (FE) GBIC, BIDI GBIC, CWDM GBIC,

Topics

#Fiber optic connectors#GBIC transceivers#SFP transceivers#Switch cabling

Community Discussion

No community discussion yet for this question.

Full 200-301 Practice