1Z0-591 CERTIFICATION PRACTICE & 1Z0-591 LATEST EXAM BOOK

1z0-591 Certification Practice & 1z0-591 Latest Exam Book

1z0-591 Certification Practice & 1z0-591 Latest Exam Book

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Oracle Business Intelligence Foundation Suite 11g Essentials Sample Questions (Q63-Q68):

NEW QUESTION # 63
How will you model a Type II Slowly-Changing Dimension?

  • A. Add an additional column to the dimension table to capture a version of change
  • B. Add a new row to the dimension table with a new key for the changed record
  • C. Overwrite an existing dimension table record with the changed record
  • D. Do Nothing

Answer: B

Explanation:
Explanation/Reference:
Dimensional Modeling - Slowly Changing Dimensions
* Type 1 - Overwrite Original Value
A change does not require tracking
* Type 2 - Add a new record
With Type II SCD, a new version of the dimension record (row) is created, and the existing version is marked as history.
Each row does not correspond to a different instance of an entity but a different "state", a "snapshot" of the instance at a point in time.
Note: Tracking changes in dimension is referred in datawarehousing as slowly changing dimensions.
In the source system a lot of changes are daily made :
new customers are added,
addresses are modified,
new regional hierarchies are implemented,
or simply the product descriptions and packaging change.
These sorts of changes need to be reflected in the dimension tables and in several cases, the history of the changes also needs to be tracked.
By remembering history, we are then able to look at historical data and compare it to their current situation.


NEW QUESTION # 64
What is the first step when creating an Aggregate table in the OBI repository?

  • A. Test the Aggregate table by using Analysis
  • B. Create a dedicated Connection Pool
  • C. Specify the Fact table that you want to aggregate
  • D. Use Job Manager to run the Aggregate script

Answer: C

Explanation:
Explanation/Reference:
Steps for Creating Aggregate Tables in OBIEE
1. Create all Dimension Tables, Fact Tables & Hierarchies, which are required to be aggregated.
2. Go to ToolsàUtilities (from Administration tool menu bar), a dialog box will pop up with all available utilities.
3. Select Aggregate Persistence Wizard, and then click Execute Button.
4. Now Select appropriate path where you need to generate Aggregate Table SQL.
Note : Click Generate DDL file for first time generation of Aggregate Table Click Next, to move to next page (Select Business Model & Measure Page) In Select Business Model & Measure Page, Select Appropriate Business Model & then select associated Fact / Measure.

Etc.


NEW QUESTION # 65
Which three options apply to FMW Application Roles?

  • A. Can be exported / moved between FMW11g environments
  • B. Secures RPD permissions but NOT Web Catalog (webcat) permissions
  • C. Can be created by using BI Administrator Client and "pushed" to WLS Admin Console
  • D. Provide an indirection between LDAP groups and BI roles
  • E. Are created and managed by using the WLS Admin Console and FMW Control

Answer: B,D,E

Explanation:
Explanation/Reference:
A: The default Application Roles available after OBIEE 11g installation are BIAdministrator, BISystem, BIConsumer and BIAuthor.
Note: In OBIEE 11g, Application roles provide insulation between permission definitions and corporate LDAP Groups. Permissions are defined at Application Role level and changes to LDAP groups just require a reassignment of the Group to the Application Roles.
See figure below:

C: Application Roles, Policies, association of Policies to application roles and association of users and groups to application roles are managed using Fusion Middleware Enterprise Manager (FMW EM).
E: Object level permission association to Applications Roles resides in the RPD for repository objects.
Permissions and Privilege for web catalog objects resides in the OBIEE Web Catalog. Wherever Groups were used in the web catalog and RPD has been replaced with Application roles in OBIEE 11g.
Note: Application Roles are introduced in OBIEE 11g. An application role is specific to the application. They can be mapped to other application roles defined in the same application scope and also to enterprise users or groups, and they are used in authorization decisions.


NEW QUESTION # 66
If you have a database with four aggregate tables, how should the repository be configured to take advantage of the aggregates?

  • A. By creating four new logical table sources and using the Fragmentation content to specify the aggregation levels
  • B. By creating four new logical table sources and choosing each dimension's level of aggregation in the Content tab
  • C. By creating four new logical table sources and using the "where" section of the Content tab to specify the aggregation levels
  • D. By creating four new logical tables sources

Answer: B

Explanation:
Content Tab
Aggregation Content
You can define the aggregation (ie the group by) of:
by hierarchy level
by logical column
It helps you to define an aggregate navigation

Note: logical table source
Logical table sources define the mappings from a single logical table to one or more physical tables. A logicaltable contains one or more logical table source. The mapping between physical columns and logical columns are done in this element.
The definition of the logical table source is used:
* to specify transformations/calculations (in the column mapping tab),
* to enable aggregate navigation and fragmentation (in the content tab) The Content tab of the Logical Table Source is used to define :
* any aggregate table content definitions (specify the grain of the physical tables),
* fragmented table definitions for the source,
* and WHERE clauses (if you want to limit the number of rows returned).


NEW QUESTION # 67
Which language is used by OBIEE to query Essbase?

  • A. MDX
  • B. DMX
  • C. LINQ
  • D. SQL

Answer: A

Explanation:
Explanation/Reference:
The Essbase cube looks just like any other relational star schema in my Presentation Layer, however when it is queried Oracle BI Server will issue MDX queries against a multi-dimensional data source, rather than an SQL query against a relational star schema.


NEW QUESTION # 68
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