IBM C2090-546 問題集

質問 1：
Which two authorities can grant SELECT privilege on a table? (Choose two.)
A. DATAACCESS authority on the database.
B. SECADM authority on the database.
C. ACCESSCTRL authority on the database.
D. DBADM authority on the database.
E. SYSADM authority on the instance.
正解：B,C

質問 2：
Which SQL statement will archive the audit log for the connected database?
A. CALL SYSPROC.AUDIT_ARCHIVE(NULL, NULL)
B. CALL SYSPROC.AUDIT_ARCHIVE_LOG(' ', -1)
C. SELECT * FROM TABLE(SYSPROAUDIT_ARCHIVE(NULL, NULL)) AS t1
D. SELECT * FROM TABLE(SYSPROC.AUDIT_ARCHIVE_LOG(' ', -1)) AS t1
正解：A

質問 3：
The SAMPLE database is backed up and the recovery logs are included in the backup image. Which of the following actions is required to restore the database to the end of the backup?
A. RECOVER DB sample TO END OF BACKUP;
B. RESTORE DB sample;
ROLLFORWARD DB sample TO END OF BACKUP AND COMPLETE;
C. RECOVER DB sample TO END OF BACKUP;
ROLLFORWARD DB sample AND COMPLETE;
D. RESTORE DB sample TO END OF BACKUP AND STOP;
正解：B

質問 4：
A range-partitioned table TAB1 has been created with COL1 and COL2 with COL1 as the partitioning column. What is the result of running the following statement? CREATE UNIQUE INDEX xcol2 ON tab1(col2) PARTITIONED
A. The uniqueness will be enforced locally within each partition.
B. The index will be created as a non-unique index and a warning will be returned.
C. The statement will be rejected and an error will be returned.
D. The index will be created as a unique non-partitioned index and a warning will be returned.
正解：C

質問 5：
If DB2 load operation is performed against a table which contains at least one XML column, which statement is true?
A. One compression dictionary is built for relational data, one compression dictionary is built for XML data, and one compression dictionary is built for both relational and XML data.
B. One compression dictionary is built for relational data and one compression dictionary is built for the XML data.
C. One compression dictionary is built for both relational data and for XML data.
D. One compression dictionary is built for relational data, XML data is not compressed.
正解：B

質問 6：
When using an SQL UPDATE statement on an XML column, which statement is valid?
A. An SQL UPDATE statement cannot be used on an XML column.
B. An SQL UPDATE statement can update an XML column using an XMLQUERY transform expression.
C. An SQL UPDATE statement on an XML column must supply the complete new XML document.
D. An SQL UPDATE statement can modify a portion of an XML column using the SUBSTR function.
正解：B

質問 7：
Which of the following is NOT a valid workload name?
A. #WKLOAD
B. SYS_WKLOAD
C. DBA_WKLOAD
D. &WKLOAD
正解：B

質問 8：
If table space TS is created as follows: CREATE TABLESPACE ts MANAGED BY DATABASE USING (FILE '/data.dat' 12 M); If table space TS contains 4 MB of data and the hight water mark is at 6 MB, and the following statements are executed: ALTER TABLESPACE ts LOWER HIGH WATER MARK; ALTER TABLESPACE ts REDUCE (ALL CONTAINERS 5 M); What are the expected results?
A. The high water mark for all containers used by table space TS is only lowered if the size of all containers can be reduced by 5 MB.
B. The size of all containers is only reduced by 5 MB if the high water mark is lowered.
C. The high water mark for table space TS is lowered and the size of all containers is reduced by 5 MB.
D. The high water mark for all containers used for table space TS is lowered by 5 MB.
正解：C