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IBM Certified Database Administrator - IBM IMS Sample Questions:

1. Using the sample IBM supplied authorization exit, which authorization ID setting will be ensured?

A) The initial primary authorization ID is set to the same value as the first secondary ID.
B) The initial primary authorization ID remains the primary ID, the SQL ID is set equal to theprimary ID, and the list of DB2 secondary IDs is set to the list of group names to which theRACF user ID is connected.
C) The initial primary authorization ID remains the primary ID, the SQL ID is set equal to theRACF ID of the DB2 subsystem.
D) The initial primary authorization ID is unchanged as the DB2 primary ID, and the SQL ID ismade equal to the DB2 primary ID, and one secondary ID exists and is the name passed byCICS or IMS.

2. How is DB2 installed on the server?

A) DB2 can only be purchased pre-installed on an IBM server. There is no need to ever installDB2.
B) DB2 can only be installed from a command prompt using command-line entries.
C) DB2 must be installed on RAM drive on the server to speed up performance of the database.
D) DB2 can be installed using the DB2 installation wizard.

3. Which of the following options best defines the Label-Based Access Control (LBAC) feature?

A) DB2 LBAC is the DB2 authority in charge of issuing GRANT and REVOKE statements.
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 lets you decide exactly who has write/read access to individual rows and columns by comparing the security labels between database objects and users.

4. Which of the following options best describes the differences between Label Based Access Control (LBAC) and Row and Column Access Control (RCAC)?

A) RCAC returns the data based on what is being asked (data centric), while LBAC returns data based on who is asking what (user centric). Users with DATAACCESS authority are exempt from the Row and Column Access Control rules.
B) RCAC is a fixed label security model designed for the US government while LBAC is a general purpose security model best suited for commercial customers.
C) LBAC allows you to protect access only to rows, while RCAC allows you to protect both rows and columns.
D) With RCAC users do not get an error when accessing protected data, while with LBAC users can get an error if they don't have the necessary credentials to access a LBAC protected column.

5. What are DB2 constraints?

A) DB2 constraints are rules that can be imposed on data values (in a table) so that they conformto a certain property or business rule.
B) A DB2 constraint restricts the tables that can be related together due to database size issues.
C) DB2 constraints are the limits of the database installation when you install and set up your DB2database.
D) A DB2 constraint is a limitation in the DB2 Express product designed to make it less powerfulthan the full DB2 product.

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