Latest Business Intelligence Interview Questions Part – 2
What Is The Difference Between Built-in-strategies And External Strategies?
Built-In-Strategies:
Extracting the joins with tables
Detect cardinalities in joins
Create default classes and objects from the tables
Objects –
In this we can set how the objects to be displayed in the universe pane
Joins –
In this we can set how the joins between the tables has to be retrieved like matching column names or matching names etc.
Tables –
In this it will reads the table structure from the database.
The other strategies:
Setting the number of rows to be retrieved – default 100
The number of row retrieved from database
The execution time of the query based on the number of minutes specified.
The maximum size of the long text objects.
External Strategies: External strategies are declared in STG section of .PRM file. We can create the external strategy using either sql or flat file.
What Is Strategy?
The strategy is the script that automatically extracts the structural information from the database or flat file.
Built-in-strategies
External strategies
Where Will You Find The Address Of Repository In Bo?
BO Main.key, File that contains the address of the repository’s security domain.
What Is The Channel?
A channel is a Web site that uses “push” technology, also known as Webcasting, to keep subscribers abreast of up-to-date information.
Each BUSINESSOBJECTS channel is associated with a BROADCAST AGENT, itself associated with a user group in the Business Objects repository. One BROADCAST AGENT can have several channels.
How Do You Define Universe Parameters?
The first step in creating a universe is to specify its parameters.
These parameters include the definition of a universe, which is comprised of the universe name, a description of the universe, a connection to an RDBMS. You enter universe parameters from the Universe Parameters dialog box.
This dialog box also lets you set up database options, external strategies, graphic options, and print settings.
What Do You Mean By Object Qualification?
The qualification of an object reveals how it can be used in multidimensional analysis.
An object can be qualified as a dimension, a detail, or a measure.
In the Universe pane, the symbol beside each object indicates its qualification.
What Is Alert Message?
An alert is a message which is displayed before viewing the data records.
What Is Drill Up/down/by/through?
Drill mode allows you to analyze data from different angles and on different levels of detail.
Drill down displays next level of detail in hierarchy.
Drill up goes back up through the hierarchy to display data on less detailed levels.
By using Drill by option you can move to another hierarchy to analyze other data that belongs to a different hierarchy.
Drill Through if the lowest level of detail you need is not currently available in the report, you can drill through to the database directly from drill mode and get the data you need. You do not have to edit the query in the Query Panel.
What Are The Formats Supported For Business Objects Documents?
You can view Business Objects documents in the following formats:
HTML
PDF
Enhanced Document Format
Business Objects Format
What Is Join?
A Join is a relationship that explains how the data in one table relates to data in another table.
What Are Linked Universes?
If the data provided is from two different data providers then we can link those two universes, such type of universe is called Linked Universe.
What Is Business Intelligence 80 / 20 Concept?
In a business Intelligence environment 80% of development time is allocated to OLAP interface designing, 20% of time allocated to Report development.
How Can You Check The Universe?
Using check Integrity, u can check the universe.
Go to Designer, Tools -> check Integrity
Can We Have A Report With Multiple Data Sources?
Yes.
How Do You Design A Universe?
The design method consists of two major phases:
During the first phase, you create the underlying database structure of your universe. This structure includes the tables and columns of a database and the joins by which they are linked. You may need to resolve loops which occur in the joins using aliases or contexts.
You can conclude this phase by testing the integrity of the overall structure.
During the second phase, you can proceed to enhance the components of your universe. You can also prepare certain objects for multidimensional analysis. As with the first phase, you should test the integrity of your universe structure. Finally, you can distribute your universes to users by exporting them to the repository or via your file system.
What Are Different Types Of Parsing?
There are two types of parsing:
Quick parsing
Through parsingents
What Is A Prompt?
A Prompt is an end users object, which allows the users to enter the value or select the values to restrict the data in the report.
What Are The Features In Bca?
Automated document scheduling and publishing.
On the server side, CORBA-enabled features such as load balancing and server optimization using caches.
Tracing BROADCAST AGENT activity
What Are The Roles Of Bo Administrator?
The following are the responsibility assigned to administrator:
Installations and configurations in a distributed environment .
Creating the BO Enterprise Repository.
Performing back up and recovery of Metadata.
Tuning the servers.
Deployment of reports.
What Are The Resources That Are Managed By Supervisor?
Business objects products
Universes
Documents
Repository domains
Stored Procedure
What Is A Report Bursting?
Report bursting allows you to maintain the version documents based on the user profiles.
What Is Olap Interface?
A good OLAP interface writes an efficient SQL and reads an aqua rate data from database.
To design the interface and architect having good knowledge on database under standing the report requirements.
What Is An Application Developer Or Report Developer?
Design the Reports according to the report requirement templates.
Testing the each report with following types of tests:
Unit Testing
System Testing
Performance Testing
User Acceptance Test (UAT)
What Are The Types Of Filters Which Affects The Report?
There are two types of filter:
A global filter affects the whole report.
A blockspecific filter only filters data for the specified chart, table or crosstab.
What Are Cardinalities?
Cardinality expresses the minimum and maximum number of instances of an entity B that can be associated with an instance of an entity A. The minimum and the maximum number of instances can be equal to 0, 1, or N.
Because a join represents a bi-directional relationship, it must always have two cardinalities.
There are two main methods for detecting or editing cardinalities:
The Detect Cardinalities command
The Edit Join dialog box
What Is Bca?
BCA is a software product for the users of WEBI and BO to process and distribute documents automatically at the scheduled dates and time.
What Is Data Mining?
Data Mining is the analysis of data and use of software techniques for extracting hidden, comprehensible, and useful information from databases.
What Are The Data Mining Technologies?
Statistics
Cluster Analysis
Neural Network
Data visualization
Decision Trees
What Are The Activities In Data Mining?
Modeling the relationships among objects in the data mining to explore and use those relationships.