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

1. 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.

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

3. Which one of the following options is INCORRECT about DB2 pureScale?

A) DB2 10 pureScale introduced support for split mirror technology as a backup method.
B) DB2 10 pureScale introduced support for partitioned indexes and partition reorgs.
C) DB2 10 pureScale introduced support for range-partitioned tables. Attach/detach operations are limited to the first and last partitions only.
D) DB2 10 pureScale is able to leverage DB2's Workload Manager.

4. Where is data stored in a typical DB2 pureScale environment?

A) In a shared storage accessible by all members.
B) Data is split among both, members and a shared storage.
C) All members hold a local data partition of the database.
D) Data is permanently stored in the cluster caching facility.

5. How does automatic storage work in DB2?

A) Automatic storage is an option which is set when you create a DB2 database. It allows transactions that are executed to be automatically committed.
B) Automatic storage is a function of DB2 that allows tables to be backed up automatically on a set schedule.
C) Automatic storage simplifies storage management by allowing you to specify storage paths where the database manager can place table space data.
D) Automatic storage allows automatic allocation of free space in memory for optimizing query execution.

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