Hello! I need help with the following ASAP as it is due tonight. Please try to answer them all. As always, I will upvote. I have attached reference materials as well for further help. Square boxes mean there can be multiple answers and I would like to double check to make sure Q2 and Q3 are correct. Thanks!!

http://www.cs.unc.edu/~dewan/242/s07otes/intode12.html

http://www.cs.unc.edu/~dewan/734/current/lectures/JavaByteIPC_IO.pdf

Question 1 of 9 15 Points The lower and upper halves of an I/O driver: A. access a common data structure. B. access a common data structure in kernel space. C. access a common data structure in user/process space D. access a common bounded buffer (which may be synchronized differently compared to a traditional bounded buffer) E. execute in different modes F. both execute in kernel mode G. both execute in user mode H. None of the above The upper half of a driver (e.g. ttygetc) in the device- communication overview) is called by: A. the lower half OB. a trap handler C. an interrupt handler Question 3 of 9 6 Points The lower half of a driver is called by: A. the upper half B. an interrupt handler C. a trap handler Reset Selection Question 4 of 9 12 Points Select all that are true. A. e upper and lower halves of a driver are executed by the same thread. 0 B. The upper and lower halves ofa driver are executed by different threads. C. The lower half can unblock a thread blocked executing the upper half. 0 D. The upper half an unblock a thread blocked executing the lower half. Question 5 of 9 6 Points Select one: A. The lower half input driver consumes characters produced by the upper half. B. The upper half input driver consumes characters produced by the lower half. C. None of the above Reset Selection Question 6 of 9 6 Points Select one. A. The lower half output driver consumes characters produced by the upper half. B. The upper half output driver consumes characters produced by the lower half. C. None of the above Reset Selection Question 7 of 9 6 Points Select one. A. Enabling interrupts of an output device results in an output interrupt being posted. B. Disabling interrupts of an output device results in an output interrupt being posted. C. None of the above. Reset Selection Question 8 of 9 3 Points. Point(s) deducted for incorrect answer: 3.0 Input characters can get lost if they are not processed fast enough True False Reset Selection Question 9 of 9 3 Points Output characters can get lost if they are not processed fast enough. O True False Reset Selection