Supporting Cisco Routing and Switching Network Devices (RSTECH, legacy) — Question 11

A null modem cable uses which adapter type?

Answer options

• A. RJ-11
• B. RJ-45
• C. RS-323
• D. RS-232
• E. USB

Correct answer: C

Explanation

The correct answer is C, RS-323, as it refers to a standard for serial communication that is often used in null modem cables. The other options, such as RJ-11 and RJ-45, are types of connectors for telephone and networking respectively, while USB is a different type of interface altogether.