DB2 10 DBA for zOS

Here you have the best IBM C2090-612 practice exam questions

You have 134 total questions to study from
Each page has 5 questions, making a total of 27 pages
You can navigate through the pages using the buttons at the bottom
This questions were last updated on January 7, 2026
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Question 1 of 134

Workload Manager (WLM) manages how many concurrent stored procedures can run in an address space and the number of concurrent stored procedures in an address space cannot exceed the value of the NUMTCB parameter. Which statement about the value of NUMTCB is correct?

A.

NUMTCB parameter must be set to 1 for Java stored procedures.

B.

NUMTCB parameter must be set to 1 for REXX stored procedures.

C.

NUMTCB parameter can be a value greater than 1 for native SQL stored procedures.

D.

NUMTCB parameter can be a value greater than 1 when a stored procedure invokes DB2 utilities.

Correct Answer: B

Question 2 of 134

If a single row of the PLAN_TABLE has a 'Y' value in more than one of the sort composite columns, what is indicated?

A.

The next sort step will perform two sorts.

B.

There are multiple sorts in the plan step.

C.

One sort in the plan step will accomplish two tasks.

D.

Two sorts are performed on the new table of a star join.

Correct Answer: C

Question 3 of 134

What IBM provided stored procedure will access DB2 real time statistics tables?

A.

DSNAEXP

B.

DSNAIMS

C.

DSNACCOX

D.

DSNLEUSR

Correct Answer: C

Question 4 of 134

The EXPLAIN STMTCACHE ALL statement provides information about SQL tuning. Which information is part of the DSN_STATEMENT_CACHE_TABLE?

A.

Filter factor information.

B.

Stage 1 and stage 2 information.

C.

Number of columns used in an index.

D.

Number of times an SQL statement is executed.

Correct Answer: D

Question 5 of 134

Which two of the following DB2 performance features will ignore clustering in favor of faster insert performance? (Choose two.)