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IBM Certified System Programmer - IBM IMS Sample Questions:

1. Your accounting report shows that a large component of class 3 wait time for an application is service task switch time. For which type of contention should you be looking?

A) system catalog
B) open/close data set
C) logging
D) asynchronous read

2. Click the Exhibit button.
In the exhibit, a customer has a two way data sharing group running with one internal coupling facility (ICF) and one external coupling facility (CF). The only CF structures allocated are the ones depicted in the exhibit. ICF1 is a volatile CF. No ARM policy is active. The customer experiences a power failure to CEC1. Which statement regarding the state of data sharing group DB2G is true?

A) Member DB2A will automatically be restarted on CEC2 and work will continue to be processed by both members.
B) Member DB2A will terminate but since this is a data sharing system, DB2B remains active and able to process work. DB2G_SCA will remain in CEC1 since it is in different partition than LPAR1.
C) Member DB2A will terminate, DB2B remains active and able to process work. Structure DB2G_SCA will be automatically rebuilt to the external CF.
D) Member DB2A and member DB2B both abnormally terminate and are unable to process work until restarted.

3. A system is running low on active logs and you need to add active logs to provide some relief.
What would be the appropriate action to achieve this?

A) Allocate the new active log data sets using IDCAMS, change the ACTLGNUM DSNZPARM to a higher value, and issue the -SET SYSPARM RELOAD command.
B) Allocate the new active log data sets using IDCAMS, change the ACTLGNUM DSNZPARM to a higher value, stop DB2, and add the active log names then start DB2.
C) Allocate the new active log data sets using IDCAMS, change the ACTLGNUM DSNZPARM to a higher value, and issue the -SET SYSPARM LOAD (new-zparm-mod) command.
D) Allocate the new active log data sets using IDCAMS, stop DB2, add the active log names then start DB2.

4. A customer is having performance problems with a particular statically bound batch package.
This batch program is processing transactions from a sequential file where each input record ends up updating one row in a 10 million row table. The sequential file contains 5000 records.
The customer reviews the accounting record information and notices that class 1 elapsed time is 2 hours, class 2 elapsed time is 1 hour 50 minutes and class 3 elapsed time is 1 hour, 45 minutes. Which statement regarding the problem could be true?

A) The access path for the package is not optimal; high CPU is causing the problem.
B) DASD contention could be the result of the poor performance problem.
C) The scenario as described does not indicate that there is a performance problem; all of the elapsed time figures appear to be normal.
D) The batch program appears to have a logic error; the difference between class 2 elapsed and class 3 elapsed shows only 5 minutes of time actually executing in DB2.

5. Which statement about migrating a DB2 data sharing system to a new DB2 version is correct?

A) You can only run the DSNTIJNF job (that switches the system to new-function mode) with a single member active in the DB2 data sharing group.
B) You need to bring down all the members of the DB2 data sharing group except one while running the DB2 CATMAINT utility.
C) If you use COEXIST=YES, there is no need to run CATMAINT with a single member active. All members can be active during CATMAINT.
D) You can run CATMAINT with all members of the data sharing group active in DB2.

Solutions: