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Q31. Which statement about UPDATE processing is FALSE?
A. The UPDATE statement logs the before and after value of every column it modifies.
B. A searched UPDATE is used to update one or more rows and a positioned UPDATE is used to update exactly one row.
C. When the UPDATE statement modifies parent key columns, the value of corresponding foreign key columns are also modified.
D. The UPDATE statement modifies the values of specified columns in the rows of a table, view, or underlying table(s) of a specified fullselect.
Answer: C
Explanation:
Q32. Which DB2 product is a database cluster solution for non-mainframe platforms and is best suited for Online Transaction Processing (OLTP) workloads?
A. DB2 Connect
B. DB2 pureScale
C. Workload Manager
D. High Availability Disaster Recovery
Answer: B
Explanation:
Q33. Which type of constraint can be used to tell the DB2 Optimizer that a parent-child relationship exists between two tables, but that the relationship is not enforced?
A. Check
B. Unique
C. Referential
D. Informational
Answer: D
Explanation:
Q34. Which object can be enabled for compression?
A. View
B. Buffer pool
C. Storage group D. Temporary table
Answer: D
Explanation:
Q35. Which statement will prevent concurrent application processes from performing anything other than read-only operations against a table named TAB1?
A. LOCK TABLE tab1 IN READ MODE
B. LOCK TABLE tab1 IN SHARE MODE
C. LOCK TABLE tab1 IN EXCLUSIVE MODE
D. LOCK TABLE tab1 IN READ-ONLY MODE
Answer: B
Explanation:
Q36. What needs to be defined in order to track changes made to a system-period temporal table over time?
A. Once the row-begin, row-end, and transaction-start-id columns are created, all changes are tracked.
B. A history table must be created with identical columns to the base table and a unique index must be defined on the transaction-start-id column.
C. A history table must be created as a clone table of the base table after the row-begin, row-end, and transaction-start-id columns have beendefined.
D. A history table must be created with identical columns to the base table and then the base table altered with the ADD VERSIONING clause torelate it to the history table.
Answer: D
Explanation:
Q37. Which case will require a sequence to be dropped and recreated instead of being modified by the ALTER SEQUENCE statement?
A. Change the data type of the sequence.
B. Reset the sequence to its starting value.
C. Establish new minimum or maximum values.
D. Change the increment between future values.
Answer: A
Topic 2, Volume B
Q38. Which type of constraint can be used to ensure that an INTEGER column in a table will never be assigned more than one record that contains a NULL value?
A. Unique constraint
B. Primary key constraint
C. Informational constraint
D. Column default constraint
Answer: A
Explanation:
Q39. Which product is used to customize execution environments for the purpose of controlling system resources so that one department or service class does not overwhelm the system?
A. pureScale
B. Workload manager
C. Data partitioning feature
D. Self-tuning memory manager
Answer: B
Explanation:
Q40. Given the following statements:
What will be the result?
A. Joe Smith
B. <name>Joe Smith</name>
C. <name>Joe Smith></name><name>DB2</name>
D. <employeeinfo><name>Joe Smith</name></employeeinfo>
Answer: B
Explanation: