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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) 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.
B) 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.
C) 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.
D) 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.

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) db2start NODE102
B) db2cluster -node node102 -exit - maintenance
C) db2start member on NODE102
D) db2start member 1

3. Consider the scenario where the primary cluster caching facility failed while the secondary cluster caching facility was in CATCHUP state. Which of the following outcomes is CORRECT?

A) The instance would be brought down. DB2 cluster services then restarts only the secondary cluster caching facility now in the primary role.
B) DB2 cluster services will initiate a group restart with the former secondary cluster caching facility becoming the primary CF for the cluster. The instance will be temporarily unavailable while the services restart automatically
C) The DB2 pureScale cluster would freeze. A database administrator must restore the database from a previous backup and then roll forward the database to a point in time before the freeze.
D) The takeover operation succeeds and the secondary cluster caching facility will be promoted to primary. The cluster would continue processing incoming read-only transactions.

4. In a DB2 pureScale environment, which of the following statements is NOT a characteristic of the cluster caching facility?

A) This component provides a global buffer pool.
B) This component is used to balance the workload through a global workload resource pool.
C) This component is used to keep page caching consistent across all members through a shared group buffer pool.
D) This component is used to coordinate locking through a global lock manager to prevent conflicting access to the same table data by different members.

5. DB2's High Availability and Disaster Recovery (HADR) feature provides a high availability solution for both partial and complete site failures. Given the sentences below, select the CORRECT statement about HADR.

A) HADR protects against data loss by replicating data changes from a source database, called the primary, to a target database, called the standby.
B) HADR protects against data loss by saving data changes from a source database into a local recovery log file.
C) HADR feature is only available for DB2 Advanced Enterprise Edition.
D) HADR protects against data loss by replicating data changes from a backup database file to a standby database.

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