此题为判断题(对,错)。
第1题:
YouhaveaWindowsPowerShellscriptthatcontainsthefollowingcode:import-csvAccounts.csv|Foreach{New-ADUser-Name$_.Name-Enabled$true-AccountPassword$_.password}Whenyourunthescript,youreceiveanerrormessageindicatingthattheformatofthepasswordisincorrect.Thescriptfails.Youneedtorunascriptthatsuccessfullycreatestheuseraccountsbyusingthepasswordcontainedinaccounts.csv.Whichscriptshouldyourun()
A.import-csvAccounts.csv Foreach{New-ADUser-Name$_.Name-Enabled$true-AccountPassword(ConvertHost-
B.import-csvAccounts.csv Foreach{New-ADUser-Name$_.Name-Enabled$true-AccountPassword(ConvertTo-
C.import-csvAccounts.csv Foreach{New-ADUser-Name$_.Name-Enabled$true-AccountPassword(Read-To
D.import-csvAccounts.csv Foreach{New-ADUser-Name$_.Name-Enabled$true-AccountPassword(Read-Host
第2题:
YoucreatedtheORDERStableinyourdatabasebyusingthefollowingcode:
SQL>CREATETABLEORDERS(ORDER_DATETIMESTAMP(0)WITHTIMEZONE);
Then,youinserteddataintheORDERStableandsaveditbyissuingthefollowingstatements:SQL>INSERTINTOORDERSVALUES(’18-AUG-0010:26:44PMAmerica/New_York’);
SQL>INSERTINTOORDERSVALUES(’23-AUG-0212:46:34PMAmerica/New_York’);
SQL>COMMIT;
Next,youissuedthefollowingstatementtochangethetimezoneforthedatabase:
SQL>ALTERDATABASESETTIME_ZONE=’Europe/London’;
Whatwillbetheresultofexecutingtheabovestatement?()
第3题:
2、如何为结构体类型定义一个新的名称? struct type_name{ code_block; };
A.typedef struct type_name new_name{ code_block; };
B.typedef struct type_name{ code_block; }new_type_name;
C.typedef struct new_name type_name{ code_block; };
D.struct type_name{ code_block; }typedef new_name;
第4题:
A.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,job_name=>’JOB1’);
B.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,job_name=>’JOB_LOG’);
C.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,which_log=>’JOB1’);
D.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,which_log=>’JOB_LOG’);
第5题:
对于基本表S(S#,NAME,SEX,BIRTHDAY)和SC(S#,C#,ORADE),其中S#、NAME、 SEX、BIRTHDAY、C#和GRADE分别表示学号、姓名、性别、生日、课程号和年级。有一 SQL语句:
SELECT S#,NAME
FROM S
WHERE S# NOTIN
(SELECT S#
FROM SC
WHERE C#='C102');
其等价的关系表达式是______。
A.πS#.NAME(σC#≠'C102'(S
SC) )
B. πS#.NAME(S)-πS#.NAME(σC#='C102'(S
SC) )
C.πS#.NAME(S
σC#≠'C102'(SC) )
D.πS#.NAME(S
(SC) )
第6题:
用vi打开一个文件,如何用字母”new”来代替文件中所有的字母”old”
A.:r/old/new
B.:s/old/new
C.:1,$s/old/new/g
D.:%s/old/new/g