IBM IBM Information Management C2090-548

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IBM C2090-548 Exam Syllabus Topics:

IBM Certified Database Administrator - IBM IMS Sample Questions:

Question #1
What are DB2 access plans?

A. An access plan is a plan that is created for each table, describing which users or queries willhave access to the data that is contained in that particular table.
B. An access plan is part of the security audit that is performed by the DBA, with assistance fromthe network administrator, to list who will have access to database from the point of view of theoperating system.
C. An access plan is one that specifies an order of operations for accessing data in a SQL query.It lets you view statistics for selected tables, indexes, or columns; properties for operators;global information, such as table space and function statistics; and configuration parametersrelevant to optimization.
D. An access plan is the result of the planning phase for the installation of the DB2 product. Ittakes into account who will access the database and which permissions they will have.

Question #2
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 allows you to use labels to reference database objects by a short name instead of the full qualified name.
C. DB2 LBAC monitors table data access and tables modifications made by database users.
D. DB2 LBAC is the DB2 authority in charge of issuing GRANT and REVOKE statements.

Question #3
Which one of the following statements is TRUE about DB2 Workload Management (WLM)?

A. DB2 Workload Management allows you to assign resources to different workloads, which leads to a stable and predictable execution environment.
B. DB2 Workload Management guarantees the availability of data by replicating it to a stand-by server.
C. DB2 Workload Management requires several application changes in order to make the application aware of the WLM feature.
D. DB2 Workload Management can be used to schedule maintenance tasks such as BACKUPs, REORGs, or RUSTATS.

Question #4
What action is taken when a segment is deleted from a HISAM database?

A. It is physically deleted from the CI by zeroing the segment.
B. A status code is returned to your program indicating segments cannot be deleted from aHISAM database.
C. It is marked as deleted in the delete byte in the segment prefix.
D. It is physically deleted from the CI, with the remaining segments moved towards the beginningof the CI.

Question #5
What is the purpose of the Self Tuning Memory Manager (STMM) in DB2?

A. STMM allows DBAs to inspect the current memory allocation by buffer pools.
B. This feature reduces the task of configuring your DB2 server by continuously updating memory configuration parameters, resizing buffer pools, and dynamically determining the total amount of memory to be used by the database.
C. The purpose of this feature is for the system to deliver to you a report of database tuning recommendations so that you can update the configuration parameters by hand.
D. This feature detects memory expansion in the database and delivers a warning to the DBA to let them know when the database is nearing a threshold memory allocation limit.

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