Basic Facts About Multi$-$Level Don$$t Cares

Which of these are correct statements about multi$-$level don$$t cares? Select all the correct answers.

Multi$-$level don$$t cares are useful in part because they allow us to put back some of the $$expressivity$$ lost in the simplifications $($e$.$g$.,$ the algebraic model$)$ we used as the basis for our Boolean network model.

Observability Don$$t Cares $($ODCs$)$ are impossible patterns at the input to an internal Boolean network node.

Controllability Don$$t Cares $($CDCs$)$ are patterns of inputs to a node that mask its output at the overall networks Primary Output$($s$).$

Status: $[$object Object$]$

$10$ points

$5.$

Question $5$

Problem $4.$ Satisfiability Don$$t Cares $($SDCs$)$