Health Metrics measure member activity and engagement in the community. What are they?

Which of the following is NOT a main component of the motherboard?

A) Cache memory B) CPU C) RAM D) DVD

Consider an array-based representation of a tree and a variable called root as the index to the tree’s root node. What value does the text suggest to assign to root if the tree is empty?

a. 0 b. -1 c. 1 d. nullptr