CISC 7334X Midterm Exam

1. c
2. a
3. d
4. c
5. d
6. c
7. d
8. b
9. c
10. e.: 36Mbps; # 12*log(7+1)/log(2)
11. e.: 30Kbps; # 90000 / (log( (28+4)/4 ) /log(2) )
12. e.: ~3 voltage levels; # 2.8284; 2^(90000/(2*30000))
13. e.:  4 voltage levels
14. e.: 13; # 13.010; 10 * log(20)/log(10)
15. e.: 26Mbps; # 26.633; 4 * log(100+1)/log(2)
16. e.: 470bps; # 470.64; 1000.0 - 1000.0 * -(0.88*log(0.88)/log(2) + 0.12*log(0.12)/log(2))
17. e.: ~-1; # -0.96910; 10 * log ( 20 / 25 ) /log(10)
18. d
19. d
20. a