ICND1: Interconnecting Cisco Networking Devices Part 1 (CCENT, legacy) — Question 6

If three devices are plugged into one port on a switch and two devices are plugged into a different port, how many collision domains are on the switch?

Answer options

• A. 2
• B. 4
• C. 5
• D. 6

Correct answer: A

Explanation

A switch creates a separate collision domain for each port. In this scenario, one port has three devices, which still counts as one collision domain, and the other port has two devices, also counting as one collision domain. Therefore, there are a total of 2 collision domains on the switch.