The removal of a hard drive from a PC before it is retired and sold as surplus is an example of what type of action?

What are end-point and mid-point PSEs examples of?

A) Power sourcing equipment B) Powered devices C) Powered end users D) Power sinking equipment

What number is now at the front of the queue?

A queue performs the following commands (in pseudo-code): enqueue 4, 6, 8, 3, 1 dequeue three elements enqueue 3, 1, 5, 6 dequeue two elements a. 3 b. 4 c. 5 d. 6