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NEW QUESTION # 88
Identify the two types of storage for Essbase.
Answer: B
Explanation:
Explanation/Reference:
Oracle Essbase developers creating planning and budgeting applications have been keenly aware of the advantages and disadvantages of the two different storage types available to them:
* Block storage option (BSO) databases support a wide range of calculations, including forecasts, allocations, and aggregations through procedural calculation scripts. The results of these calculations can be written back to the database, but applications that use BSO storage are limited to about 10 dimensions and member counts in the low hundreds of thousands.
* Aggregate storage option (ASO) databases can support about 20 dimensions and member counts in the millions. ASO databases use multidimensional functions rather than procedural scripts to perform calculations, but the results of queries cannot be stored back in the database, making ASO unsuitable for most financial management applications.
NEW QUESTION # 89
Selecting the Manage Map Data link allows one to do which three of the following?
Answer: A,B,D
Explanation:
Explanation/Reference:
The Oracle BI Presentation Services Administration page provides the Manage Map Data link. This link displays the Manage Map Data page, where you can manage the logical and display versions of the data from various physical data sources. This defines the layers that content designers use when creating map views.
The data that is available for managing maps and data is stored in Oracle Database as part of MapViewer.
Using this page, you provide:
* (A) Logical names to prevent any existing BI column mappings and map analyses from breaking because of changes to the physical data or to the data source.
* Display names so that the geographic data is meaningful to end users.
Note: Administering Maps Using Administration Pages
For (C) -layers, see 3-7 below.
For (D) -import images, see 11-12 below.
To administer maps using Administration pages:
1. Sign in to Oracle Business Intelligence.
2. In the global header, click Administration.
3. Click the Manage Map Data link to display the Manage Map Data page.
4. Click the Layers tab.
5. Click the Import Layers button to display the Import Layers dialog.
6. In the dialog, select the connection and the layers that are needed for zooming and drilling. (This tab is not prepopulated by other selections on the Administration pages. You can use any layers or images with any map.) Click OK when you have finished selecting layers that are appropriate for the subject area with which you are working.
7. Back on the Layers tab, select a layer, then click the Edit Layer button to display the Edit Layer dialog in which you associate layers with attribute columns so that you can display BI data in the map view.
Click OK when you have finished editing the layer.
You use this tab to associate layers with BI data. If you use the City column in multiple subject areas, then you must associate it with a layer for each subject area.
8. Click the Background Maps tab, then click the Import Background Maps button to display the Import Background Maps dialog.
9. In the dialog, select the connection and the main maps to use.
The connection that you select for the main map can be different from the connection for the layers or images.
Click OK when you have finished selecting main maps.
10.Back on the Background Maps tab, select a map, then click the Edit Background Map button to display the Edit Background Map dialog in which you name the map and specify the order of layers and their zoom levels.
Click OK when you have finished editing the map.
11.Optionally, click the Images tab, then click the Import Images button to display the Import Images dialog.
You can import images if you plan to use them as a format on maps.
12.In the dialog, select the connection and the images to use.
Click OK when you have finished selecting images.
13.Click Back when you have finished working with the Administration page. Your changes are saved automatically.
Reference: Oracle Fusion Middleware System Administrator's Guide for Oracle Business Intelligence Enterprise Edition, Configuring Mapping and Spatial Information
NEW QUESTION # 90
When a customer wants to get sales numbers by day, how is data stored in the Star Schema, if the data is loaded nightly?
Answer: C
Explanation:
Aggegated by days.
NEW QUESTION # 91
How will you model a Type II Slowly-Changing Dimension?
Answer: D
Explanation:
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 # 92
Identify the reason why Oracle OLAP provides a favorable aggregation strategy.
Answer: C
Explanation:
Explanation
All metadata for cubes and dimensions is stored in the Oracle database and revealed in the data dictionary views, so that you can query the entire business model in SQL.
NEW QUESTION # 93
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