CCNA: Cisco Certified Network Associate — Question 680

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?

Answer options

• A. LC to SC
• B. SC to SC
• C. LC to LC
• D. SC to ST

Correct answer: A

Explanation

The correct answer is A, as the LC to SC cable is compatible with both GBIC and SFP modules, allowing for a successful connection between the two switches. Options B (SC to SC), C (LC to LC), and D (SC to ST) do not match the required connector types for this specific interconnection.