pos2007-assn1-shell_syscall.txt

香港大学《操作系统》课程的实验

Marking Scheme for Assignment 1

Question 1 ............... 11%

Handicap Case ............. 2%
Handicap Case ............. 2%
Sample Case ............... 2%
Special Case .............. 2%
Huge Case ................. 2%
Non-destructive ........... 1%


Question 2 ............... 11%

Invalid Input ............. 2%
Invalid Input ............. 2%
Sample Correct Case ....... 2%
Special Case .............. 2%
Huge Case ................. 2%
Non-destructive ........... 1%


Question 3 ............... 11%

Sample Case ............... 2%
Special Case .............. 2%
Filter Unwanted File ...... 2%
Filter Unwanted File ...... 2%
Filter Unwanted File ...... 2%
Non-destructive ........... 1%


Question 4 ................ 6%

Handicap Case ............. 1%
Sample Case ............... 2%
Rely on Q3 ................ 2%
Non-destructive ........... 1%


Question 5 ............... 28%

Sample Case ............... 5%
Normal Case ............... 5%
Normal Case ............... 5%
3 Processes Only .......... 5%
Shell Return .............. 4%
Code Clarity .............. 4%


Question 6 ............... 33%

Sample Case #1 ............ 3%
Sample Case #2 ............ 3%
Sample Case #3 ............ 3%
Special Case .............. 3%
Normal Case ............... 3%
Normal Case ............... 2%
Normal Case ............... 2%
2 Processes Only .......... 4%
Shell Return .............. 5%
Code Clarity .............. 5%

Bonus / Penalty (Apply the highest appropriate)

>= 7 Days Earlier ...... * 1.1
Arrive On Time ......... * 1.0
<= 1 Day Late .......... * .98
<= 2 Days Late ......... * .96
<= 3 Days Late ......... * .94
<= 4 Days Late ......... * .92
<= 5 Days Late ......... * .90
<= 6 Days Late ......... * .88
<= 7 Days Late ......... * .86
> 7 Date Late .......... * .00