C2090-541の無料問題集（104題）、C2090-541認定試験参考書

IBM C2090-541 問題集

試験コード：C2090-541

試験名称：DB2 9.7 DBA for Linux UNIX and Windows

最近更新時間：2025-07-09

問題と解答：全104問

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質問 1：
Which statement is correct about informational constraints?
A. The database manager uses an informational constraint to enforce the uniqueness of the key during changes to the columns of the unique constraint.
B. An informational constraint specifies that every row that is inserted or updated in the table must conform to the definition of the table.
C. An informational constraint is a column or combination of columns that has the same properties as a unique constraint.
D. An informational constraint can be used by the SQL compiler to improve the access to data and query performance.
正解：D

質問 2：
Which statement is correct about using the TAKEOVER HADR command?
A. The TAKEOVER HADR command can only be issued on the standby database and the primary database is not connected to the standby database when the command is issued.
B. The TAKEOVER HADR command can only be issued to switch the roles of the primary and standby databases if the databases are in peer state.
C. The TAKEOVER HADR command can only be issued on the primary database and the primary database is connected to the standby database when the command is issued.
D. The TAKEOVER HADR command can only be issued to switch the roles of the primary and standby databases if the standby database is in local catchup state.
正解：B

質問 3：
Given the following CREATE TABLE statement:
CREATE TABLE applicant (id INTEGER NOT NULL PRIMARY KEY, lastname VARCHAR(50));
Which SQL statement will execute successfully?
A. ALTER TABLE applicant ADD COLUMN resume XML CHECK (resume IS VALIDATED)
B. ALTER TABLE applicant ADD COLUMNresume XML WITH DEFAULT
C. ALTER TABLE applicant ADD COLUMN resumeXML(1000) WITH DEFAULT
D. ALTER TABLE applicant ADD COLUMN resumeXML(1000) CHECK (resume IS VALIDATED)
正解：A

質問 4：
You are running a LOAD utility and have not provided an exception table. What will happen if duplicates for a unique key get Inserted during the LOAD phase due to duplicates in the input file?
A. LOAD will fail and generate an error message.
B. LOAD will create the exception table.
C. LOAD will complete but the table being loaded will be placed in SET INTEGRITY PENDING state
D. LOAD will eliminate the duplicate rows from the table and give a warning message.
正解：D

質問 5：
Scheduled tasks are executed by the DB2 autonomic computing daemon (db2acd). Every five minutes the daemon checks for new or updated tasks. If a task is scheduled to run every five minutes and for some reason, the task takes seven minutes to complete, the daemon will not execute another instance of the task at the next 5 minute interval. Which minute mark will allow the next task to run?
A. 10
B. 17
C. 5
D. 22
正解：A

質問 6：
Tables TABLE_A and TABLE_B in database TESTDB have the same data structure (same columns with the same definitions). You wish to unload the data from the two tables into a single file In PC/IXF format.
Which command(s) can be used to do this?
A. EXPORT TO combined.ixf OF IXF SELECT * FROMtable_a UNION ALL SELECT * FROM table_b
B. EXPORT TO combined.ixf OF IXF SELECT * FROM table a INTERSECT SELECT * FROM table b
C. EXPORT TO combined.ixf OF IXF SELECT * FROMtable_a: EXPORT APPEND TO combined.ixf OF IXF SELECT * FROM table_b;
D. EXPORT TO combined.ixf OF IXF SELECT * FROMtable_a, table_b
正解：A

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IBM DB2 9.7 DBA for Linux UNIX and Windows 認定 C2090-541 試験問題:

1. The SELF_TUNING_MEM database configuration (db cfg) parameter is set to ON.
Which three statements will cause the memory tuner to actively tune memory within the database? (Choose three.)

A) Any two of LOCKLIST, SHEAPTHRES_SHR,PCKCACHESZ are set to AUTOMATIC.
B) MAXLOCKS is set to AUTOMATIC.
C) At least one buffer pool has its size set to AUTOMATIC.
D) The SORTHEAP db cfg parameter is set to AUTOMATI
E) One dbcfg parameter is set to AUTOMATIC or the size of at least one buffer pool is set to AUTOMATIC, and the DAT ABAS E_M E M O R Y db cfg parameter is set to a numeric value or to AUTOMATIC.

2. You are running a LOAD utility and have not provided an exception table. What will happen if duplicates for a unique key get Inserted during the LOAD phase due to duplicates in the input file?

A) LOAD will fail and generate an error message.
B) LOAD will create the exception table.
C) LOAD will complete but the table being loaded will be placed in SET INTEGRITY PENDING state
D) LOAD will eliminate the duplicate rows from the table and give a warning message.

3. What are two available forms of compression in DB2 9.7? (Choose two.)

A) page
B) index
C) column
D) row

4. BOB and ALICE moved from the DEVELOPER group to the ANALYST group.
As the security administrator, which two commands would remove Bob and Alice from the
DEVELOPER group? (Choose two.)

A) REVOKE GROUP developer FROM bob,alice
B) REVOKE GROUP developer FROM USER bob, USERalice
C) REVOKE ROLE developer FROM bob,alice
D) REVOKE ROLE developer FROM USER bob, USERalice

5. Click the Exhibit button

Refer to the logging configuration parameters shown in the exhibit.
If there are currently 100 active log files and there is an error with archiving log file 1. What will happen when DB2 attempts to create log file 101?

A) The database will appear hung because the active log space will be full and BLK_LOG_DSK_FUL is set to YES. Once log file 1 is archived, DB2 will begin normal processing.
B) DB2 will continue normal processing. It will create log file 101 while attempting to archive log file 1 up to five times. If the fifth attempt to archive log file 1 to the regular archive location fails, it will be placed in the FAILARCHPATH location until the regular archive location becomes available.
C) The transaction that prompts DB2 to try and create log file 101 receives a "log full" error and is rolled back because the active log space is full. Since the physical log path is not full, the BLK_LOG_DSK_FUL parameter does not take effect, so the database does not appear hung.
D) DB2 will attempt to archive log file 1 to the regular archive location up to five times. If log archival still fails after the fifth attempt, the application will receive a "log full" error and at least one transaction will be rolled back.

質問と回答：

質問 # 1
正解： A、D、E

質問 # 2
正解： D

質問 # 3
正解： B、D

質問 # 4
正解： C、D

質問 # 5
正解： B