test 181 要点

gaoxintian

1. there has two workstations named earth and moon . a vg named
    gis_data lies in moon . User at earth want to mount gis_data by
    NFS , consider the seneiano , what to do ?
    key point : the attribute of mount of gis_data should be true at
    moon in /etc/exports
2. you can ping serverA , but when you telnet it , you get refused
   response . why ?
3. how to reducevg a disk with an active ps ?
4. how to install a PCI machine with a MCA bootable tape , consider
   you have system CD ?
5. how to see lv at a pv ? ( lspv -l)
6. how to upgarade aix4.2.1 to aix4.3 , upgrade or reinstall it?
7. how to apply user defined application when shutdown ? (rc.shutdown)
8. how to see a pv identification ? ( lspv hdiskx)
9. how to determine an APRA fix version ? (instfix -ivk ARPA_NAME)
10. when chtz takes effect ? ( next login )
11. ping loopback unscessfully , why ?( I am not sure , rc.tcp to
    restart  TCPIP daemon )
12. how to get info access similar to aix4.2.1 info command get ?
    ( install bos.html)
13. how to migrate a pv to another in the same vg ?
14. CDE environment , when you key in user name and passwd at login
    diague , after blue screen appeared , the login diague appear
    again , why ? (dtlogin not start or /home full)
15. showmount -e servername
16. the usage of cpio , dd , tar commands
17. how to see bootlog ? ( alog -o -t boot)
18. the usage of /etc/qconfig
19. how to reduce a file system size ?
20. how to config a device and find the device drive (cfgmgr -i /devname)
21. the usage of /etc/exclude.rootvg
22. the effection on system performence of NBPI and fragment size .
23. inutoc
24. tape not act smoothly , how can you PD this ?(power and cable ,
    SCSI ID , right driver )
25. if a running print job can be cancelled ?
26. how to perform shutdown while give user time to logout ?
    ( shutdown -r , I am not sure )
27. how to repair system with super block dirty ? (fsck)
28. how to change user default login shell ? (/usr/lib/security/mkuser.default)
29. date mmddhhmmssyy
30. use vmstat iostat tuning performance
31. how to change pv (reducevg vgname pvname ;rmdev -ld pvname;
    physical exchange;mkdev -ld pvname;extendvg vgname pvname)
32. how to upgrate aix4.2.0 to 4.2.1
33. /etc/inittab
34. how to in current shell start a programe
35. how to find ODM (/etc/objrepos;$ODMDIR)
36. how to see error log to find a ssa problem
37. not to find rsh,how to start it (change login.cfg)
38. tty's default speed (9600)
39. a user can ftp,rexec to a remote host,once change passwd and fault,how to correct it.
    (change /etc/.netrc and chmod 600)
40. TCB has installed and running,how to disable it ? (remove it's package)
41. NFS has a error "RPC no respond " at the client,how to correct it? ( server's NFSD not start)
42. does migration install,how to preserve some config file and other files. (/etc/preserve.list)
43. how to restore a file from mksysb's tape. ( restore -xvqf /dev/rmt0.1 /.../filename)
44. how to stat tcpip (stratsrc -g tcpip. rc.tcpip)
45. lsps -a to find paging space and set up auto to yes,means active it at next boot.
    what different in auto paging space and active paging space
46. can't to umonut a filesystems,how to to it. (close to use it or user exit and umount it)
47. after add a scsi hdisk, led stay at c33-c34,how to correct it. (reboot in maintance mode
    and  and change bootlist. bootlist -m normal new-hdisk cd0 rmt0 )
48. how to find a scsi id problem
49. how to add a lv mirror and reduce a lv mirror.
50. how to make a vg-mirror.
51. how to reduce the size of a fs. (backup,umonut,remove,recreate,restore)
52. how to find a large file enable of fs.(lsfs -q fsname to list inode)
53. mksysb only to make the backup of rootvg, don't to back up total disk.
54. can ping a remote host, but can't to telnet the remote host , hoe to correct it ?
    (list the server's inetd.conf  or paging space is not full )
55. the mksysb of MCA machine can clone on PCI machine.
56. the min number of VGDA of a vg ?  (2)
57. how to change a tape machine form undefine to available. (cfgmgr -v or mkdev -ld /dev/rmto)
58. whether  to canael a printing job. (yes)
59. mksysb call mkszfile to create image.data
60. what the min size of file system (512)
61. how to create a file syatem  has large number of files but every is short. (change nbpi
    to small   fs size/nbpi=inode number)
62. buffercrate copy the software files from cd to disk for later install)
63. smitty -xs to create a shell script in a diskette, how to use the diskette during boot.
64. crontab (minutes hour day month  weekday command)
65. tape doesn't to take off the tape machine,what is the first step to do? (tctl offline)

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