Having done a significant amount of assembly language programming in the past, understanding bit-wise operations is required. In my first job out of college, I was parsing bytes of data where each bit represented a multiple choice answer to a question. So, yea I'm tight with bit-wise operations. And, I'm glad that I have this knowledge, because a good deal of Raspberry Pi projects, where I'm parsing data from a chip on the i2c bus, require it.