Question 89 of 952 from exam 200-125: Cisco Certified Network Associate Exam

Question 89 of 952 from exam 200-125: Cisco Certified Network Associate Exam

Question

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?

Answers

Explanations

A. B. C. D.

A

The concept of collision domain comes from the Ethernet networking technology, where a collision domain refers to a segment of a network where packets can collide with each other due to sharing the same physical medium. In a switched network, each port on the switch represents a separate collision domain.

In the given scenario, three devices are plugged into one port on a switch, and two devices are plugged into a different port. To determine the number of collision domains on the switch, we need to count the number of ports that have devices connected to them.

Therefore, the switch has a total of two collision domains, one for each port with connected devices.

Hence, the correct answer is A. 2.