Amy has just added a 462 meter run of fiber optic cable to the network. What should she do next?

test the installed cable

Explanation:

Based on the information provided within the question it can be said that the next step that Amy should take would be to test the installed cable. One of the most performed tests is called an Insertion Loss test. This is done with light source and power meter (LSPM) or optical loss test set, and tests to make sure that the information is travelling through the cable correctly and that no loss occurs in transit.