End delimiter is 0111
Data sent is 0111111111
Here we have to place 0s in such a way that the receiver is able to distinguish up to what part data is present. 0111 is the end delimiter. Our data is containing end delimiter we have to find a way such that the receiver is able to know that 0111 is not end delimiter but data and that's why we will put 0s after each 011. While putting 0s if new 0111 sub strings formed then for such cases also we will be putting 0s after 011
so, I think answer will be 01101101101101