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IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3 Sample Questions:
1. What is the purpose of the tiebreaker disk in a DB2 pureScale environment?
A) Tiebreaker is used to determine which clients are accessing the data on the storage.
B) Tiebreaker is used by DB2 to transfer data when packets collide.
C) Tiebreaker is used to determine which databases are currently active and can be accessed by the clients directly in graphical user interface (GUI).
D) Tiebreaker is used to determine which half of the DB2 pureScale instance should remain online upon a communication failure.
2. Consider the scenario where a client application is connected to DB2 pureScale "member 1". The DB2 pureScale environment has three DB2 pureScale members. In a situation where "member 1" fails, the client is still able to execute operations against the DB2 pureScale cluster with minimal interference. Which of the following technologies allow the client to continue performing operations?
A) Geographically Dispersed pureScale Cluster (GDPC).
B) Decentralized log files for member recovery.
C) Automatic Client Reroute.
D) Redundant cluster caching facility.
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) Page reclaiming.
C) Lock contention.
D) Lock escalation.
4. Which of the following options best defines the Label-Based Access Control (LBAC) feature?
A) DB2 LBAC lets you decide exactly who has write/read access to individual rows and columns by comparing the security labels between database objects and users.
B) DB2 LBAC monitors table data access and tables modifications made by database users.
C) DB2 LBAC allows you to use labels to reference database objects by a short name instead of the full qualified name.
D) DB2 LBAC is the DB2 authority in charge of issuing GRANT and REVOKE statements.
5. Which one of the following options is FALSE about DB2's Multi-Temperature Data Storage capability?
A) Multi-temperature data management best practices recommend that cold data should be stored in faster devices in order to maximize overall system performance.
B) You can use storage groups to implement multi-temperature data management in DB2.
C) Multi-temperature data management reduces the total cost of ownership by allowing efficient deployment of storage hardware with minimal administrative overhead.
D) Multi-temperature data management integrates with DB2's Workload Manager feature to let you prioritize your workloads based on the data being accessed.
Solutions:
Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A |