Top Cognos Interview Questions And Answers
Top Answers to Cognos Interview Questions
|Ability to deploy charts||Bar, Pie, Line, Crosstabs, Funnel, Scatter, etc|
|Speed of data access||High performance access across all data sources|
|Data Export formats||Excel, HTML, PDF, CSV, XML|
It’s nothing but a query item when it is drag and drop into the work area.
It’s mainly used in Reporting and for BI Authors it is the most essential object from the framework manager. These have lot of properties associated with them and are present in query subjects. They are similar to subsets of query subjects.
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The advantages of Cognos are:
D) Score carding
A) List report
B) Cross report
C) Blank report
D) Repeater report
E) Chart report
It’s a reporting tool of IBM which help us in reporting and analysis of different data from a data warehouse.Read this blog to find out why Business Intelligence tools are critical to today’s enterprises.
There are three types of gateway:
A) CGI (Common Gateway Interface)
B) ISAPI (Internet Service Application Interface)
It defines the structure of a cube. Any dimension must have at least one key attribute and other attributes so that it may define hierarchies.
There are two types of hierarchies in Analysis Services:
A) One is Attribute hierarchies
B) Second is User defined hierarchies.
It’s a development tool which is used to create the end-user layer used by authors to build their BI objects.
It permits one to move from data at the bottom level in a cube to the data in the operational systems from which the cube was derived.
A) Drilling Down
B) Drilling Across
C) Handling Time
Cognos Access Manager
1) Metrics Studio
2) Report Studio
3) Event Studio
4) Query Studio
5) Analysis Studio
1) The Studio Toolbar
2) The Utilities Toolbar
3) The Tab Navigator
It provides a way to do dynamically changes in the reports.
It’s a set of instructions to run the report.
It is a complete set of query subjects and query objects that are used for reporting.
- Standalone Filter
It is used to reuse the expressionEmbedded Filter
To use the filter with only one dimension or query subject.
It transforms the data received from the reader buffer and it moves transformation to transformation on row by row basis and it is uses the transformation caches when necessary.
It is a table that contains summarized numerical (facts) and historical data. It has a foreign key – primary key relation with a dimension table.
- Physical Layer
It provides the physical query layer and is made up primarily of data source and stored procedure query subjects. It acts like a foundation for the presentation layer
- Presentation Layer
The Presentation layer is made up primarily of model query subjects that you create.
- Non Additive
- Semi Additive
At the initial metadata import operation, a default data source query subject is created for those each object you have select.
By setting governors we can restrict the tables retrieved by a query solution.
BI is a broad category of application programs and technology used for query, by which we can do the reporting and analyzing the business multi dimensionally.
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- Creating the Repository
- Performing the task of backup and recovery of the Meta Data.
- Tuning the servers.
- Installations and configurations in distributed network environment
- Developing the user Administration
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- Window Based
- Web Based
The phases are:
It represents the collection of users that performs the similar task.
It is a container for models, reports, and so on. Modelers can create packages in Framework Manager to publish the models to the Report Net server.
Model and Query
It is used to restrict the data displayed on the Report. Model filter are reusable.
If any dimension will be connected with multiple fact tables then it is called confirmed dimension.
It can be done in the Run Metadata Wizard.
First of all Go to Run Metadata Wizard–>Select another database ( ex. suppose SQL Server is choose in prior attempt, then you can choose Oracle as new data source). At the last import it.
A query subject that behaves as a dimension has multiple levels of granularity and it will be joined on the different sets of keys to fact data.
After creating the IQD file from the framework manager that IQD file will be used by the transformer to generate the cube.
Create a Query Subject
- Using properties pane select externalize.
- We have four options in that select IQD
- Static Condition
Whenever you run the report the condition will not change.
- Dynamic Condition
Condition which keep on change whenever you run the report.
It is a key value pair used in creation of conditional Query Subjects. It sub situates the values at the query at runtime.
According to the requirements of the report derive the new items with the help of existing Query Items.
An operation that allows one to select a portion of the data of a fact on the basis of specified values in one or several dimensions.
- It can contain metadata from the multiple data sources.
- It has fewer database restrictions
- Provide the facility to interact more effectively with Cognos applications.
You can’t enter non standard sql.
- Data source
- Parameter Map
- Query Subject
- Query Item
A project in the framework manager looks as a folder that contains a project file (.cpf) and the specific XML files that define the project
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