A. The transparent encryption of backups uses the encryption wallet
B. The database uses the same encryption key for every encrypted backup
C. The password encryption of backups only uses the password while creating and restoring backup
D. If transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.
第1题:
A.ThebackupperformedonSundayscontainsalltheblocksthathaveeverbeenusedinthedatabase.
B.ThebackupperformedonSundayscontainsalltheblocksthathavechangedsincethelastlevel1backup.
C.Thebackupperformedoneachworkingdaycontainsalltheblocksthathavechangedsincethelastlevel0 backup.
D.ThebackupperformedonMondaycontainsalltheblocksthathavechangedsincethelevel0backup,and everyotherworkingdaycontainsalltheblocksthathavechangedsincethelevel1backup
第2题:
下列复选框构造方法,错误的是 ( )
A.setLayout(new GridLayout(3,1));
B.add(new Checkbox("one",null,true));
C.add(new Checkbox("two"));
D.add(new Checkbox("one",true));
第3题:
About ________ of the workers in the factory were born in the ________.
A.two-thirds, 1970 B.two-thirds, 1970s C.two-third,1970 D.two-third, 1970s
第4题:
You performed an incremental level 0 backup of a database:RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;To enable block change tracking after the incremental level 0 backup, you issued this command:SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’;To perform an incremental level 1 cumulative backup, you issued this command:RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which three statements are true?()
A. Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.
B. The change tracking file must always be backed up when you perform a full database backup.
C. Block change tracking will always reduce I/O performed during cumulative incremental backups.
D. More than one database block may be read by an incremental backup for a change made to a single block.
E. The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.
第5题:
下列复选框构造方法,错误的是()。
A.setLayout(newGridLayout(3,1));
B.add(newCheckbox("one",null,true));
C.add(newCheckbox("tWO");
D.add(newCheckbox("one",true);
第6题:
12. About_______ of the workers in the factory were born in the __________.
A. two- thirds;1970
B. two- thirds ; 1970s
C. two-third ; 1970
D. two-third ; 1970s