IBM C2020-635 : IBM Cognos 10 BI OLAP Developer

  • Exam Code: C2020-635
  • Exam Name: IBM Cognos 10 BI OLAP Developer
  • Updated: Oct 26, 2026
  • Q & A: 65 Questions and Answers

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IBM C2020-635 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security and Deployment- Security model
  • 1. Role-based access control
    • 2. Authentication and authorization
      - Deployment concepts
      • 1. Package publishing
        • 2. Content store management
          Topic 2: IBM Cognos Architecture- Cognos BI components overview
          • 1. Cognos Connection and content store concepts
            • 2. Report Studio, Analysis Studio, Query Studio roles
              - Data warehouse and OLAP integration
              • 1. ROLAP vs MOLAP concepts
                • 2. Multidimensional data structures
                  Topic 3: Framework Manager and Metadata Modeling- Package development
                  • 1. Query subjects and relationships
                    • 2. Business rules and calculations
                      - Data source connections
                      • 1. Relational vs dimensional data sources
                        • 2. Security filters and access control
                          Topic 4: Analysis and Reporting- Analysis Studio usage
                          • 1. Drill-up and drill-down operations
                            • 2. Crosstab and exploration techniques
                              - Report creation concepts
                              • 1. Interactive analysis and filtering
                                • 2. Ad-hoc reporting
                                  Topic 5: OLAP Modeling and Cube Design- Dimensional modeling concepts
                                  • 1. Star schema and snowflake schema
                                    • 2. Hierarchies and levels
                                      - IBM Cognos Transformer
                                      • 1. Dimension and measure design
                                        • 2. Cube creation and modeling

                                          C2020-635 Exam Questions and Answers

                                          Recommended experience with IBM Cognos BI tools and basic understanding of data warehousing and OLAP concepts.

                                          • IBM Cognos Architecture ()
                                          • Analysis and Reporting ()
                                          • OLAP Modeling and Cube Design ()

                                          Allocate study time in proportion to each topic's weight.

                                          The C2020-635 exam has 60-65 (varies) questions with a 90 minutes-minute time limit. Practicing under the same constraints on ValidVCE builds the pacing habits you will need on test day.

                                          The PC engine installs on your computer and simulates the real exam scenario with timed tests and performance marking. The online engine runs in your browser, needs no installation, works on most devices, and is often the more stable option when you switch machines frequently.

                                          A passing result on C2020-635 requires Approximately 60-65%, and the official exam fee is Approx. USD 200 (varies by region). Knowing both numbers upfront helps you budget your study time and money realistically.

                                          The package includes 65 practice questions for the C2020-635 exam, covering the current IBM Cognos 10 BI OLAP Developer objectives with verified answers.

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                                          IBM Cognos 10 BI OLAP Developer Sample Questions:

                                          Question #1

                                          Columns have been renamed in the data source. Which command must the developer run to
                                          update the model?

                                          • A. Check Columns
                                          • B. Rename columns
                                          • C. Update Columns
                                          • D. Modify Columns
                                          Reveal Solution  Discussion  0

                                          Correct Answer: D  🗳️

                                          Question #2

                                          What can be created if the financial analyst wants to look at the data by fiscal year, while the
                                          senior manager wants to analyze the data by calendar year?

                                          • A. A calculated category.
                                          • B. An alternate hierarchy in the time dimension.
                                          • C. A special category.
                                          • D. A subdimension in the time dimension.
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B  🗳️

                                          Question #3

                                          Transformer is unable to locate one of the source files for a data source in the model, and the
                                          model update fails. Which type of files can be used to restart the processing at the point of failure?

                                          • A. .mdx
                                          • B. .mdl
                                          • C. .qy?
                                          • D. .py?
                                          Reveal Solution  Discussion  0

                                          Correct Answer: C  🗳️

                                          Question #4

                                          What must be done to make the cube data available in Analysis Studio?

                                          • A. Generate a package that contains a data source connection to the cube.
                                          • B. Create a data source connection to the cube in Transformer.
                                          • C. Publish the PowerCube as a data source and a package.
                                          • D. Use the PowerCube Connection Utility to publish the cube.
                                          Reveal Solution  Discussion  0

                                          Correct Answer: C  🗳️

                                          Question #5

                                          What should a developer do if some levels appear red after validating the model using Show
                                          Scope?

                                          • A. Re-attach the categories in the Dimension Diagram.
                                          • B. Specify a valid relationship between the level and the data source.
                                          • C. Apply unique move to the level and regenerate the categories.
                                          • D. Ensure the level exists in the data source.
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B  🗳️

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