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NO.1 A member of a data sharing group is suffering from elongated response times. You suspect that
sysplex workload balancing (WLB) is not working properly for the DDF work (not
evenly distributing the work among the different members).
What is the simplest way to verify how the DDF threads are distributed amongst the different
members?
A. Execute the-DIS GROUP command.
B. Execute the -DIS DDF DETAIL command on each member.
C. Execute the -DIS THDO DETAIL SCOPE(GROUP) command.
D. Executed the -DIS LOCATION(') DETAIL command on each member.
Answer: B
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NO.2 If a DB2 subsystem fails during start up in the log initialization phase, which two steps are
needed in your corrective actions to minimize impact without completing a cold start?
A. Start DB2 using DEFER ALL.
B. Use DSNJU003 with the ENDRBA option.
C. Use DSNJU003 with the STARTRBA option.
D. Start DB2 using DEFER on catalog and directory.
E. Recover the subsystem to the last known system checkpoint in BSDS.
Answer: D,E
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NO.3 Which two features are the motivation behind the conversion to extended RBA/LRSN format?
A. Greater RECOVER utility concurrency.
B. Reduction of the potential for an RBA rollover.
C. More precise PIT recovery of the DB2 system catalog and directory.
D. Potentially faster UPDATE performance due to greater LRSN granularity.
E. Reduced p-Lock contention in the coupling facility due to greater LRSN granularity.
Answer: C
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NO.4 The statement cache table, DSN_STATEMENT_CACHE_TABLE. contains information about the
SQL statements in the statement cache.
Which SQL statement will NOT capture information from the DB2 dynamic statement cache into this
table?
A. EXPLAIN STMTCACHE;
B. EXPLAIN STMTCACHE ALL;
C. EXPLAIN STMTCACHE STMTID integer;
D. EXPLAIN STMTCACHE STMTTOKEN string;
Answer: A
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NO.5 The ALTER BUFFERPOOL command specifying the AUTOSIZE(YES) option enables DB2 to use
WLM services to fine tune the buffer pools.
What is the result of issuing this ALTER?
A. The immediate write threshold can be increased by 25%.
B. A pool size can be increased by up to 25% over original pool size.
C. The pool size can be increased in 25% increments base on sequential read hit ratio.
D. Depending on the type of I/O performed, pool size can be increased or decreased.
Answer: B
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Reference:http://www01.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/com.ibm.db2z11.doc.p
erf/src/tpc/db 2z_enableautobpsize.dita
NO.6 You wish to enable automatic clean-up of committed pseudo-deleted index entries for all
indexes in the DB2 subsystem. You have verified that system table SYSIBM.SYSINDEXCLEANUP has no
rows.
Without taking any other action, which action will accomplish this?
A. Set subsystem parameter INDEX_CLEANUP_THREADS to 10.
B. Set subsystem parameter INDEX_CLEANUP_THREADS to YES.
C. Issue an ALTER INDEX statement against all indexes with ERASE YES.
D. Issue an ALTER INDEX statement against all indexes with FREEPAGE 0.
Answer: A
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Reference:http://www.gsebelux.com/system/files/GSE%20DB2%20DB2%2011%20Availabi
lity%20endhancements.pdf(slide 20)
NO.7 Which action should you take to improve the performance of authorization checking for stored
procedures or user-defined functions?
A. Set subsystem parameter EXTSEC to YES.
B. Increase the value of subsystem parameter SECQTY.
C. Increase the value of subsystem parameter AUTHCACH.
D. Increase the value of subsystem parameter CACHERAC.
Answer: D
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Reference:http://www.redbooks.ibm.com/redbooks/pdfs/sg247134.pdf(page 336)
NO.8 A given buffer pool is to be used for sequentially accessed pages only.
Setting which buffer pool attribute to 0 (zero) will disable parallel processing operations in this buffer
pool?
A. DWQT
B. VDWQT
C. VPSEQT
D. VPPSEQT
Answer: D
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Reference:http://www01.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/com.ibm.db2z11.doc.c
omref/src/tpc /db2z_cmd_alterbufferpool.dita(vppseqt)
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