I just wanted to let you know what is going on with all of these questions. In order to increase my certification level on my job, I have to take certification tests. When I take these tests, I print out the questions of the ones I am uncertain of the answer and after the test, I research the correct answer(s). Since my schedule is packed, I have been asking for your assistance in determining the correct answers. Therefore, it becomes a learning experience for me. Thanks for your help. By the way, it appears that 90% of what you have provided matches how I answered. Thanks.