strobe/enable output pins role in MC14094B
Strobe pin :

Once you shift data into the shift register you need to toggle the strobe line to transfer the data into the latch and onto the outputs. This lets you load data into the device without affecting the output state, and then change all outputs at the same time.

Originally from this answer on the question &quot;What does “strobe” do for this shift register?&quot;
Output Enable : You can consider this pin as switch means when ever it is &quot;0&quot; there is no effect on output side and you have to put it &quot;1&quot; to make it functional