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IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3 Sample Questions:
1. Which one of the following sentences does NOT describe a benefit of Temporal Tables?
A) Temporal tables provide a quick and easy way to track and record data changes in the table.
B) Temporal tables lower costs by eliminating the complexity for businesses to develop their own temporal support infrastructure, such as additional tables, triggers, and application logic.
C) Temporal tables allow better data management by letting the application control data integrity and uniqueness.
D) Temporal tables increase business insight by letting analysts understand how the business was doing in the past, what has changed in the present, what are the projections for the future.
2. Consider the scenario where a database administrator is required to restore a database backup for a DB2 pureScale environment. Which of the following statements is correct?
A) The RESTORE DATABASE command will need to be executed on each DB2 member within the cluster to restore just the database. A separate command will be required to restore the metadata for each member.
B) The RESTORE DATABASE command will need to be executed on only one of the members within the cluster. This operation will restore both the database and metadata for all members.
C) The RESTORE DATABASE command will need to be executed on each DB2 caching facility within the cluster to restore just the database. All node metadata is not recoverable since it is not stored within database backups.
D) The RESTORE DATABASE command will need to be executed on the shared storage to restore the database. The metadata cannot be retrieved until the shared storage is restarted.
3. Which of the following statements is FALSE when monitoring the high usage of lock memory in a DB2 pureScale environment?
A) Request for locks might be denied.
B) Performance will not be affected due to high usage of Lock Memory.
C) Data concurrency issues can arise due to a high number of lock escalations.
D) Lock escalations can take place if there is insufficient memory.
4. Which one of the following options is CORRECT about Temporal Tables?
A) 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.
B) 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.
C) 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.
D) 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.
5. Consider the scenario where a server "pscale1" hosts a DB2 member and one cluster caching facility. In a situation where a database administrator wants to perform an operating system update on "pscale1", which one of the following options will ensure that both the member and cluster caching facility won't be automatically restarted by DB2 cluster services while the system is upgraded?
A) Log in as a cluster services administrator.
Bring the member on "pscale1" to quiesce mode and stop the cluster caching facility.
Bring the member on "pscale1" to maintenance mode.
Bring cluster caching facility on "pscale1" to maintenance mode.
B) Log in to any of the hosts as a root user.
Stop the member and cluster caching facility.
Remove the member and cluster caching facility from the cluster.
C) Log in to "pscale1" as a DB2 instance user.
Bring the member on "pscale1" to quiesce mode and stop the cluster caching facility.
Stop the instance on "pscale1".
Log in as DB2 cluster services administrator.
Bring "pscale1" host to maintenance mode.
D) Log in to any of the hosts as root user.
Bring the member on "pscale1" to quiesce mode.
Bring the member on "pscale1" to maintenance mode.
Bring cluster caching facility on "pscale1" to maintenance mode.
Solutions:
Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: C |