What kind of volcanic activity might you expect to observe at or near a dormant volcano?

Dormant means inactive or asleep so what the other person said is certainly INCORRECT. What you would expect is it to be calm and quiet but it will eventually erupt, which my be expected or unexpected depending on the possible conditions

"A dormant volcano is an active volcano that is not erupting, but supposed to erupt again"

The answer you'd want to type is "May not erupt for thousands of years, may create hot spots or geysers. "

possible

"A dormant volcano may not erupt for thousands of years. However, the volcano’s body of magma may heat nearby groundwater, creating hot springs or geysers."

Explanation:

the correct answer would be true friction causes the faults to slip or collide