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IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3 Sample Questions:
1. Which of the following options does NOT describe a benefit of DB2's Row Compression?
A) Compression allows you to cache more data in the buffer pools using the same amount of space.
B) Compression allows you to retrieve the same amount of data using fewer disk operations (I/O).
C) Compression allows you to reduce CPU workload because there is less data to process.
D) Compression allows you to store the same amount of data in less space, which can significantly save storage costs.
2. A database administrator retrieved the following status from the DB2 members in a DB2 pureScale environment:
Which of the following options will start ONLY the member hosted in NODE102?
A) db2cluster -node node102 -exit - maintenance
B) db2start member on NODE102
C) db2start NODE102
D) db2start member 1
3. Consider the scenario where two members, "M1" and "M2", intend to update two different rows on the same data page: 1."M1" is doing an update on row R1 within a data page. It is granted exclusive access to the page containing that row of data. 2."M2" requires an exclusive lock to the same page to update row R2. It passes this request to the cluster caching facility. "M2" waits while the request is processed. 3.The cluster caching facility sees that member "M1" already has an exclusive access to the page. It issues a request to "M1" for the page. In the meantime, "M2" waits. 4."M1" processes the request by writing the page back to the global buffer pool and then releasing the page lock. ("M1" retains any row or table locks it might have had). 5.The cluster caching facility grants "M2" access to the page. "M2" reads the page from the global buffer pool to perform whatever operations for which the page is needed. Which of the following DB2 pureScale monitoring elements can be used to monitor the above scenario?
A) Log Retain.
B) Lock escalation.
C) Lock contention.
D) Page reclaiming.
4. Which one of the following statements is TRUE about DB2 Workload Management (WLM)?
A) DB2 Workload Management can be used to schedule maintenance tasks such as BACKUPs, REORGs, or RUSTATS.
B) DB2 Workload Management requires several application changes in order to make the application aware of the WLM feature.
C) DB2 Workload Management guarantees the availability of data by replicating it to a stand-by server.
D) DB2 Workload Management allows you to assign resources to different workloads, which leads to a stable and predictable execution environment.
5. What is the DB2 Design Advisor?
A) The DB2 Design Advisor is a help desk facility that is available to all licensed DB2 owners that have paid their maintenance agreements with IBM. The tool is a web site that guides you through the design of your database, with the DBA responding to a series of questions. It produces a database schema that allows for quick database creation.
B) The DB2 Design Advisor is a tool that automatically analyzes your running database and continuously makes changes to your database to give it peak performance.
C) The DB2 Design Advisor is a tool that can help you improve your database workload performance. Given a set of SQL statements in a workload, the Design Advisor can generate recommendations to improve the performance of SQL execution.
D) The DB2 Design Advisor is a tool that can be used to automatically create tables based on a physical data diagram.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: C |
