IBM DB2 C2090-544

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IBM C2090-544 Exam Syllabus Topics:

IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. Table T1 was created by executing the following statement:

Immediately after creation, table T1 was populated with 10 rows. Later, user USER1 ran an application that inserted 100,000 rows into table T1. The following query is frequently ran against the T1 table:
SELECT deptno, empno, deptname FROM t1 WHERE deptno = 'EN' AND empno = '123' Assuming current statics exist for the table and index, which index will provide optimal performance for this query?

A) CREATE INDEX idx1 ON t1 (deptno, empno)
B) CREATE INDEX idx1 ON t1 (deptno, empno) INCLUDE (deptname)
C) CREATE INDEX idx1 ON t1 (deptno) INCLUDE (empno)
D) CREATE INDEX idx1 ON t1 (deptno)

2. A primary and standby database are enabled for HADR and are in peer state. The HADR_SYNCMODE configuration parameter is set to SYNC. An application connects to the primary database, issues a COMMIT and receives a successful return code in response. How were the log buffers for this unit of work processed?

A) The log buffers were written to the DB2 log files on the primary server and received in the log buffers on the standby database. The return code was then sent to the application.
B) The log buffers were written to the DB2 log files on the primary server, sent to the standby, and written to log files on the standby server. The return code was then sent to the application.
C) The log buffers were written to the DB2 log files on the standby server and held in memory on the primary server. The return code was then sent to the application.
D) The log buffers were written to the DB2 log files on the primary server and sent to TCP/IP send buffer to be shipped to the standby server. The return code was then sent to the application.

3. Which description is correct when discussing the DB2_MEM_TUNING_RANGE registry variable?

A) It is recommended that this variable be enabled at all times in order to prevent DB2 from taking too much physical memory.
B) It is recommended to set this variable only when the Self-Tuning Memory Manager (STMM) is disabled.
C) It is recommended that this variable be used to set the maximum percentage of memory that DB2 can use on the system.
D) It is recommended to set this variable only when using STMM, when DATABASE_MEMORY is set to AUTOMATIC, and if insufficient system memory problems are occurring.

4. Which database configuration parameters can be used to limit the amount of memory allocated for the LOAD utility?

A) LOAD_HEAP_SZ and STAT_HEAP_SZ
B) UTIL_HEAP_SZ and STAT_HEAP_SZ
C) UTIL_HEAP_SZ and DATABASE_MEMORY
D) LOAD_HEAP_SZ and DATABASE_MEMORY

5. Which conditions must be met to implement HADR?

A) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases must have the same bit-size (32 or 64 bit).
B) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).
C) Operating systems on primary and standby servers need not be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).
D) Operating systems on primary and standby servers must be the same; DB2 versions need not be the same; and the databases must have the same bit-size (32 or 64 bit).

Solutions: