同志们出人命啦！~~~~~~（在线等）

大家帮帮做几道题目~~~~急死了！

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9. Consider the following: "cp /etc/rc2.d/s22mylp; /etc/rc2.d/.s22mylp.orig"
a.  There is a problem, because init will execute both run control files at startup.
b.  There is a problem, because init will get confused and fail to run at startup.
c.  This is not a problem, because they will cancel each other out when init executes both files at startup.
d.  This is not a problem, because .s22mylp.orig will not be executed by init at startup.
10. Environment variables are known in all _______ created after the variable is defined.
a.  sub-shells
b.  aliases
c.  processes
d.  jobs
11. Excluding diskettes, the only type of disk-based file system that can be created on a standard
Solaris 8 operating system is UFS.
a.  true
b.  false
12. Executables can be identified as such by:
a.  an asterisk following the name using the ls -F command
b.  a hyphen in the first column using the ls -l command
c.  the directory in which they reside
d.  a filename ending in .exe
13. For a directory named /tmp with absolute mode permissions of 777, change the permissions to add the sticky bit:
a.  chmod 1777 /tmp
b.  chmod o+t  /tmp
c.  chmod 2777 /tmp
d.  chmod g+s /tmp
14. For files /etc/hosts.equiv and $HOME/.rhosts, which is true:
a.  created by superuser only
b.  related to system access security
c.  created by default during the installation
d.  run first during install
15. For run level 3, the rc program is  _______ and the rc script directory is  _______. (In order)
a.  /etc/rc3 and /etc/rc3d
b.  /etc/rc3 and /etc/rc.3d
c.  /etc/rc3.d and /etc/rc3
d.  /etc/rc3 and /etc/rc3.d
16. For the device name /dev/dsk/c0t3d0sa, what does the letter 'a' identify ?(two options):
A.  partition
B.  disk
C.  controller
D.  slice
17. From where does the root account obtain it's special privileges?
a.  any account with a login-id of "root" is treated specially by the system
b.  the UID of 0 associated with the "root" account gives it special privilege
c.  it is inherited from the file system which is also named root
d.  the root account has no special powers
18. The ______ acts as an intermediary between applications running on a computer and the hardware inside the computer. It controls physical and virtual memory, schedules processes, and starts and stops daemons. All commands interact with it.
a.  file system
b.  shell
c.  storage
d.  kernel
19. Which shells are available by default for root user in Solaris 8?
a.  Bourne shell
b.  Korn shell
c.  C shell
d.  Z shell
e.  TC shell
20. The ______ is the intermediary between the users and the computer. It accepts user input, routes it to the proper device for processing, and returns program output back to the user, and interacts with peripherals through device drivers written specially for each component of the system.
a.  kernel
b.  file system
c.  operating system
d.  daemon
21. How many lines do the commands "head" and "tail" display by default?
a.  10 lines
b.  5 lines
c.  15 lines
d.  20 lines
22. How many system run levels are there?
a.  4
b.  6
c.  8
d.  9
23. What key-sequence moves the cursor one character to the left in vi?
a.  l
b.  u
c.  k
d.  h
24. What key-sequence deletes the current character in vi?
a.  d
b.  i
c.  x
d.  e
25. Which command displays disk-usage in MB?
a.  df -k
b.  quota -k
c.  df -MB
d.  du
26. Which searches the entire system for the file "filex" and reports results?
a.  find /  -name filex  -print
b.  find /  -filex  -print
c.  find /  -find filex  -print
d.  find  filex  -print
27. Which answer will provide online help regarding "login"?
a.  help
b.  help login
c.  cat login
d.  man login
28. The mkdir command creates directories with default permissions ______ (which is then modified by the umask value).
a.  555
b.  444
c.  666
d.  777
29. What is accomplished by executing the following command "cd ~/files"?
a.  the working directory is changed to the subdirectory /files in /
b.  the working directory is changed to ./files
c.  an error is returned because it is not valid to use ~ (tilde) in this fashion
d.  the working directory is changed to the /files subdirectory of the user's home directory