All of the following are data validation error styles EXCEPT ________

In the image shown here, what does system B send to system A at step 2 of the three-way TCP handshake?

A. SYN B. ACK C. FIN/ACK D. SYN/ACK

Which of the following is not true of object-oriented design?

a. OOD takes advantage of inheritance relationships. b. OOD encapsulates attributes and operations into objects. c. OOD focuses on actions (verbs). d. Each class can be used to create multiple objects.