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Free C2090-318 Exam Braindumps (page: 4)

Page 3 of 16
PDF with 60 Questions

In order to install the RACF access control module for a DB2 subsystem, to which of the following modules should DSNTIJEX refer?

  1. DSNXRXAC
  2. DSNXSXAC
  3. DSN3@SGN
  4. DSN3@ATH

Answer(s): A

Explanation:

https://www.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/racf/src/tpc/db2z_installingracfste ps.html



A down level page set is identified by the following error message:
DSNB232I UNEXPECTED DATA SET LEVEL ID ENCOUNTERED
Which of the following should be performed to correct the condition?

  1. Execute a REORG on the object in question
  2. Execute a REPAIR DBD REBUILD on the object
  3. Stop the object, set the DLDFREQ subsystem parameter to OFF. and then restart the object in RW status
  4. Replace the object with an appropriate data set at the proper level and confirm with DSN1PRNT of the header page

Answer(s): B

Explanation:

https://www.ibm.com/support/knowledgecenter/SSEPEK_10.0.0/ugref/src/tpc/db2z_repairsamples.html



Which service class does not have a goal, but runs with a fixed dispatching priority above all of the other work on the system?

  1. ONLINE
  2. SYSSTC
  3. SYSTEM
  4. SYSOTHER

Answer(s): B



Which one of the following buffer pool thresholds determines the percentage of the buffer pool that might be occupied by sequentially accessed pages?

  1. DWQT
  2. VDWQT
  3. VPSEQT
  4. VPPSEQT

Answer(s): C

Explanation:

Sequential Steal Threshold (VPSEQT) ­ The percentage of pages that can be used for prefetch. Default is 70%. For pools with mostly sequential access, you can set this value as high as 100. For pools with mostly random access, set this value very low. Review the prefetch failure statistics to determine if applications attempt to use sequential processing against the objects allocated in this pool. https://www.bmc.com/blogs/db2-for-zos-buffer-pools-the-basics/






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