Which layer is responsible for establishing communication setup between the source and destination computers

What engine component is shown in the above figure?

Who is most likely be your target audience if you create a slide presentation that had yellow background and purple text

Two students are discussing electricity that has a frequency of 60 hz. student a says that this type of electricity is referred to as ac. student b says that in this type of electricity, the electrons flow in only one direction. which of the following statements is correct? a. only student a is correct b. only student b is correct c. both of the two students are correct d. neither of the two students is correct