Is a 30 minute lay over enough time in an airport?

I am flying from Boston, MA to Parkersburg, WV but there is a stop in Cleveland, OH in between with a 30 minute layover from Ohio to West Virginia..Is that enough time for me to switch planes over without missing my flight for WV? I am not checking any luggage i only have one carry on bag with me. And could someone explain how a lay over works? ive never flew before :/