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QUESTION 21
In preparation for disaster recovery, which technique will establish a system wide point of consistency?
A. An -ARCHIVE LOG SCOPE(GROUP) command.
B. A QUIESCE of the DB2 system catalog and directory.
C. A coordinated shut down all members of a data sharing group.
D. A -SET LOG SUSPEND command on all members of a data sharing group.
Correct Answer: C QUESTION 22
A -STOP DB2 MODE (FORCE) command was used to terminate a DB2 subsystem with inflight remote units-of-work. What happens to the inflight DB2 work?
A. Runs to normal completion and DB2 will shutdown.
B. Runs to the next application checkpoint and DB2 will shutdown.
C. Runs to the next DB2 system checkpoint and DB2 will shutdown.
D. Possibly creates in-doubt units of recovery for threads that are between commit processing phases.
Correct Answer: D QUESTION 23
Upon system restart, DB2 encounters a Critical Log Read (CLR) error during the backout of an inflight UR and the restart fails. Table space DB1.TS1 and a few catalog page sets are affected by this UR. What can you do to enable DB2 to restart WITHOUT a conditional restart?
A. Set DSNZPARM BACKODUR to 0 and LBACKOUT to YES.
B. Issue the -START DB2 command with the LIGHT(YES) option.
C. DEFER the restart for this table space using keyword DEFER=ALL in the DSNZPARM module used for this restart.
D. There is no way to restart without a conditional restart if you run into a Critical Log Read error and catalog or directory objects are involved.
Correct Answer: D QUESTION 24
Which statement is true regarding the RESTORE SYSTEM utility?
A. INSTALL SYSADM authority is required to run RESTORE SYSTEM.
B. The usage of RESTORE SYSTEM requires a conditional restart control record.
C. Once RESTORE SYSTEM completes successfully all objects are immediately ready for use.
D. If the backup was created using the FULL option, logs are also restored as part of RESTORE SYSTEM operation.
Correct Answer: B
QUESTION 25
When performing a group restart in a data sharing environment and all members are at the same DB2 version, in which order should this occur?
A. Order is not important and the group restart can be done in parallel.
B. Order is not important but restart should be performed one member at a time.
C. Restart the member with the lowest LRSN and continue restarting other members in ascending LRSN order.
D. Restart the member with the highest LRSN and continue restarting other members in descending LRSN order.
Correct Answer: A
QUESTION 26
For normal DB2 restart processing, what is the first phase of the restart process?
A. Log initialization.
B. Forward log recovery.
C. Current status rebuild.
D. Backward log recovery.
Correct Answer: A
QUESTION 27
When restoring a subsystem during disaster recovery, and the ICF user catalog for the DB2 page sets has been imported from a backup and user data sets have not been restored, what step should be executed before recovery of the DB2 page sets can begin?
A. Run installation job DSNTIJIN to define the DB2 system datasets.
B. Use IDCAMS CATALOG command to properly catalog all the data sets.
C. Nothing, DB2 requires the user page set ICF catalog definitions during execution of the RECOVER utility.
D. Use IDCAMS DELETE NOSCRATCH to remove the ICF catalog entries for the DB2 page sets that do not exist on DASD.
Correct Answer: D
QUESTION 28
A stand-alone DB2 subsystem (not a member of a data sharing group) is suffering from high page latch wait times. Which area(s) do you need to investigate?
A. Page latches are managed by buffer manager so you should analyze the buffer pools.
B. This problem can only occur in a data sharing environment, so it does not apply here as this is a stand-alone DB2 system.
C. Page latches are typically just a symptom of an underlying problem. You must determine what other things are delayed that can also lead to page latch wait problems.
D. You need to identify which latch class is involved, by either looking at DB2 statistics information, or by starting more detailed performance traces (that include IFCID 51/52 (shared latch wait) and/or IFCID 56/57 (exclusive latch waits)) to determine why this is happening.
Correct Answer: C
QUESTION 29
The -DISPLAY BUFFERPOOL command has an option that can be used to display statistics accumulated
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