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IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3 Sample Questions:

1. Which of the following options justifies why you should be actively monitoring buffer pool hit ratios on your DB2 pureScale environment?

A) High local buffer pool (LBP) hit ratios are the only important metric that must be monitored since it indicates that there are a higher number of pages fetched from physical storage than from the local buffer pool.
B) Low local buffer pool (LBP) hit ratios are the only important metric that must be monitored since it indicates that there are a higher number pages fetched directly from physical storage than from the local buffer pool.
C) Attaining high local buffer pool (LBP) and global buffer pool (GBP) hit ratios are in general an indication of overall good performance as more pages are found in memory than having to fetch from I/O.
D) Attaining low local buffer pool (LBP) and global buffer pool (GBP) hit ratios are in general an indication of overall good performance as more pages are found in memory than having to fetch from I/O.

2. A DB2 pureScale environment has fourteen DB2 members and one cluster caching facility. Having each of the members and cluster caching facility hosted on a separate physical machine, what is the recommended number of redundant cluster caching facilities necessary so that the DB2 pureScale environment could be available if the primary cluster caching facility fails?

A) 0
B) 3
C) 2
D) 1

3. Which one of the following options is CORRECT about Temporal Tables?

A) Application-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows.
B) Application-period temporal tables combine the historical tracking of a system-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information.
C) System-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows.
D) System-period temporal tables combine the historical tracking of an Application-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information.

4. What is the DB2 Design Advisor?

A) 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.
B) The DB2 Design Advisor is a tool that can be used to automatically create tables based on a physical data diagram.
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 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.

5. Consider a scenario where a database administrator (DBA) requires an overview of the pureScale cluster database. After issuing a "db2instance -list" command, the DBA notices that one of the members is in WAITING_FOR_FAILBACK state. What does WAITING_FOR_FAILBACK mean in a pureScale environment?

A) The member is waiting to failback to a remote host.
B) The member is waiting for a connection to be established with a failed Cluster Caching Facility.
C) The member is waiting to failback to its home host.
D) The member is waiting to failback to the failed Cluster Caching Facility .

Solutions: