The PDU at the Data Link layer is called a ____________.

While giving her students a physics exam, Professor Thompson noticed that Jack, one of her students who has been struggling with the course material, appeared to be copying answers from Graydon, one of the best students in the class. She decides that she should compare their answers when the class period is over before deciding what to do about the situation. In which phase of the ethical decision-making process is Professor Thompson? 

A. ?gathering information B. ?developing a problem statement C. ?identifying options D. ?weighing options

?Case 22-2 Clark, an HR manager, wants to communicate a policy on information security to all the employees. He acquires the names and addresses of the employees from an Excel worksheet. He also drafts a preliminary text about the policy and a table of points to follow to ensure online safety. To incorporate transparency, he inserts a simple poll to receive feedback. In the context of mail merge, which of the following is the data source in this scenario?

A. ?The table of points about online safety B. ?The preliminary text concerning the policy C. ?The poll designed to receive feedback from employees D. ?The Access table containing the employee names and addresses