prepking cog-125 exam questions

8/6/2019 Prepking COG-125 Exam Questions

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Exam : IBM COG-125

Title : IBM Cognos 8 BI Data

Warehouse Developer

Version : R6.1



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1. What can Data Manager be used for?

A. To create a Cognos 8 content store.

B. To extract operational data from multiple sources.

C. To create dashboards in Report Studio.

D. To build a Cognos Planning application.

Answer: B

2. What kind of tool is Data Manager?

A. ASP

B. DBMS

C. ETL

D. ERP

Answer: C

3. What distinguishes an OLTP system from a data warehouse?

A. An OLTP system captures and processes original business transactions, while a data warehouse does

not.

B. A data warehouse captures and processes original business transactions, while an OLTP system does

not.

C. An OLTP system is used to transform, clean, and combine operational data, while a data warehouse is

not.

D. A data warehouse is fully normalized, while an OLTP system is fully denormalized.

Answer:A

4. Which object is required to create a Data Manager catalog?

A. Cognos 8 package

B. Fact build

C. JobStream

D. Database

Answer: D



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5. A developer wants to create a connection to a database in a Data Manager catalog. When creating this

connection, which of the following must the developer specify?

A. A default schema name.

B. Connection method that must be used to connect to the database.

C. Names, locations, and port numbers for the SOAP and socket servers.

D. User ID and pasword for the Cognos 8 content store database.

Answer: B

6. A developer wants to create a connection to a published Framework Manager package in a Data

Manager catalog. Before this connection can be created successfully, what must the developer do?

A. Add an LDAP or NTLM namespace in Cognos Configuration.

B. Configure Data Manager to access the Cognos 8 Gateway and Dispatcher URLs.

C. Log on to Cognos Connection as a user in the Data Manager Authors role.

D. Create a data source connection to the Cognos 8 data store.

Answer: B

7. A DataStream includes two different data sources: "Golf Equipment" and "Other Equipment." For each

incoming row, the developer wants to add a value that indicates the data source that the row comes from.

What should the developer do?

A. Create a static member for each data source in the underlying hierarchy.

B. Add a literal to each data source that references the data source name.

C. Specify the source identity property for each data source in the DataStream.

D. Add a derivation to the transformation model to create a new column.

Answer: B

8. A developer has added a data source connection to a Data Manager catalog. This connection points to a

relational database. The developer wants to view the contents of this database, such as the number of

tables that it contains. What tool could the administrator use?

A. SQLTerm



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B. SQLTXT Designer

C. ODBC Administrator

D. Reference Explorer

Answer:A

9. Which of the following can a developer do with SQLTXT Designer?

A. Select data from multiple tables using joins.

B. Select data from multiple text files using joins.

C. Specify row and column delimiters.

D. Specify sort order for the flat file.

Answer:C

10. A text file contains a row at the top that only identifies the names of the columns. In order for this file to

be processed successfully, what must the developer do in SQLTXT Designer?

A. Specify CR as the record delimiter.

B. Specify NL as the record delimiter.

C. Specify that the header row ignore limit is one.

D. Specify that the file contains one header line.

Answer: D

11. A developer wants to move a selection of components from a development environment to a production

environment. What should the developer do?

A. Create a catalog backup file (.ctg).

B. Create a backup of the catalog database.

C. Create a package file (.pkg) that contains the components.

D. Create a SQL script to transfer the components.

Answer: C

12. Which of the following is true of packages in Data Manager?

A. User-defined folders cannot be exported.



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B. During importing, duplicate components are automatically renamed.

C. User-defined folders cannot be imported.

D. During importing, dependent components are automatically selected.

Answer: D

13. Which of the following is true of the Navigator?

A. When searching for components, wildcards are not supported.

B. When a component is selected, dependent components are shown.

C. Library components (such as hierarchies) cannot be navigated.

D. Components from different catalogs can be compared.

Answer:B

14. End users must be able to create Cognos 8 reports using data from the data warehouse. To facilitate

this, what can the developer do from within Data Manager?

A. Run the Create Framework Manager Model wizard to create a project.

B. Create a Cognos 8 package in the Library area of the catalog.

C. Export the Data Manager metadata to XML for use in Framework Manager.

D. Publish a Cognos 8 package in the Metadata area of the catalog.

Answer: C

15. A developer has geographical data from a data source where cities roll up into states, and states roll up

into regions. What should the developer create in order to allow Data Manager to aggregate fact data to the

region level?

A. Derived dimension

B. Lookup

C. Static members

D. Hierarchy

Answer: D

16. A developer wants to ensure that each incoming row of fact data has a corresponding location code



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from a dimension table. What should the developer create?

A. Lookup

B. Dimensional determinant

C. Member determinant

D. Identifier

Answer:A

17. A developer has created a hierarchy that uses multiple data sources. The developer wants to know if

there are multiple parents or children without parents. What tool should the administrator use?

A. Hierarchy wizard

B. SQLTXT Designer

C. SQLTerm

D. Reference Explorer

Answer: D

18. What can be seen with Reference Explorer that cannot be seen when using SQLTerm to examine the

data?

A. Hierarchical data from two database connections.

B. Number of rows in the data source used to build the hierarchy.

C. Number of tables in the data source used to build the hierarchy.

D. Columns from which the member data was obtained.

Answer:A

19. Without modifying any of the settings, what is the lowest level of granularity that will be shown in the

Reference Explorer?



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A. AllStaff

B. Staff

C. Staff (H)

D. SalesStaff

Answer: B

20. A developer has created a date hierarchy using the Date Hierarchy wizard. Which of the following is true

of all the members in this hierarchy?

A. All are retrieved from a database table using SQL.

B. All are static and are physically stored in the catalog.

C. All are retrieved from a flat file using SQL.

D. All are dynamic and are physically stored in the catalog.

Answer: B

21. A developer wants to deliver data to a dimension table in a data mart. The dimensional framework has

already been built. What should the developer create?

A. Dimension build

B. Reference dimension

C. Metadata dimension

D. Metadata collection



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Answer:A

22. Which of the following is a use for a fact build?

A. To deliver fact data into a dimensional framework.

B. To acquire and transform transactional data.

C. To automate tasks related to the build process.

D. To deliver fact data into a metadata star.

Answer: B

23. Which of the following is true of a dimension build?

A. It uses literals to define the behavior of each column of a dimension table.

B. It can generate PowerCubes, Framework Manager models, and Cognos 8 reports.

C. It can deliver data to a single, "private" data mart.

D. It uses a template to define the behavior of each column of a dimension table.

Answer: D

24. Which of the following tasks can be completed with the Dimension Build wizard?

A. Adding a custom schema to use for the dimension tables.

B. Specifying the folder in which the dimension build will be stored.

C. Specifying surrogates and change tracking behaviors.

D. Creating a connection to hold the dimension tables.

Answer: C

25. In the Dimension Build wizard, the developer has specified the schema type as "Star schema." What will

be the result of this selection?

A. The dimension will be represented in a single table. Each level of the delivered hierarchy will be

represented by one or more columns of this table.

B. The dimension will be represented in a table that contains only the keys of all the levels of the delivered

hierarchy. The descriptions of the higher levels will reside in other tables.

C. The dimension will be represented by one table for each hierarchy level. Each table will have a foreign



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key to the level above.

D. The dimension will be represented in a single table. Each row of this table will contain the ID of the

member, together with the ID of its parent.

Answer:A

26. What is a difference between a measure element and an attribute element?

A. Attribute values can be aggregated by Data Manager, while measure values cannot.

B. Measure values can be merged by Data Manager, while attribute values cannot.

C. Attribute values can be merged by Data Manager, while measure values cannot.

D. Measure values can be aggregated by Data Manager, while attribute values cannot.

Answer:D

27. A developer wants to copy data from one table to a table in another database. What type of fact build

would be the most appropriate for the developer to specify in the Fact Build wizard?

A. Cognos BI Mart (Snowflake)

B. Data transfer

C. Cognos BI Mart (Star)

D. Relational datamart

Answer: B

28. What is depicted below?

A. How the elements of the transformation model will map to the fact table target.

B. How the columns of the data source map to the elements of the transformation model.

C. How the levels of the reference dimension map to the elements of the transformation model.



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