  We consider microwave spectroscopy of Josephon junctions composed of
hybridized Majorana states in topological 1-D superconductors. We point out how
spectroscopic features of the junction appear in the current phase relation
under microwave irradiation. Moreover, we discuss a way to directly probe the
nonequilibrium state associated with the 4{\pi} periodic Josephson effect. In
particular, we show how the microwave driving can be used to switch from a
4{\pi} to a 2{\pi} Shapiro step in the current voltage relation.
