# Embedded Firmware Engineering questions
 1. What happens to a bit that is 'shifted out'?
  1. `0b00000001 >> 1` - where does the 1 go?
   1. It doesn't 'go' anywhere, it just becomes a 0. 0 and 1 are just voltage states. When we shift, the state transitions based on the state of the from position. In this case there is no destination, so shifting just clears the bit.
 1. Islands problem
 1. Are Parens necessary when shifting/casting?
  1. I go overboard with the number of parens. SOme see it is as unecessary and confusing. I would rather be explicit than rely on my knowledge of c order of operations
 1. What are the connection params?
  1. What function does Supervisory Timeout perform?
  1. What does the MTU define
 1. Design an event driven fifo read with 2 levels of abstraction
 1. What happens when you dereference a null pointer