Pre-migration planning from a DB2 V8 for z/OS system to DB2 9 for z/OS system requires two
sub-system tasks to be performed or the migration process for DB2 9 you start will be terminated
immediately. Which pre-migration task must be performed?

An external stored procedure, assigned to application environment AE1, should run in parallel to a
maximum of 10 concurrent procedures. Which action will achieve this?

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

DSNZPARM parameter URLGWTH (UR LOG WRITE CHECK) is set to a very high value. Based
on the warning messages caused by this setting, it is determined that a local thread that normally
runs in a very short period of time has been completing changes for an excessively long period of
time without a commit. The thread needs to be removed from the system with minimal log access.
Which action should be taken to resolve the issue?

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?