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IBM C2020-645 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Cognos 10 BI Multidimensional Author |
| Exam Number: | C2090-645 |
| Exam Format: | Multiple choice questions |
| Related Certifications: | IBM Cognos BI Modeler IBM Cognos Analytics certifications IBM Cognos BI Report Author |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Recommended Training: | IBM Cognos BI training courses |
| Exam Registration: | IBM Certification Registration |
| Sample Questions: |  |
| Exam Way: | Online proctored or authorized testing center |
| Pre Condition: | Recommended experience with IBM Cognos BI tools and basic data warehousing/OLAP concepts. No strict formal prerequisite is publicly enforced. |
| Official Syllabus URL: | https://www.ibm.com/training/certification |
IBM C2020-645 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Framework Manager Modeling | - Relationships and query subjects - Dimensional model design - Star schema and snowflake modeling |
| IBM Cognos BI Architecture and Components | - Server components and services - Cognos 10 architecture overview |
| Report Authoring and Analysis | - Drill-down and drill-through capabilities - Analysis Studio for multidimensional analysis - Report Studio dimensional reporting |
| Querying and Data Interaction | - Filters and calculations in dimensional queries - Member selection and context filtering |
| Performance and Best Practices | - Optimizing cube and query performance - Efficient report design principles |
| Multidimensional Data Modeling | - Dimensions, hierarchies, and levels - Measures and aggregation behavior - OLAP concepts and cube structure |
| Security and Deployment | - Authentication and authorization concepts - Package publishing and deployment |
C2020-645 Exam Facts: What Candidates Want to Know
Check three things. First, authorship: the IBM Cognos 10 BI Multidimensional Author questions at RealValidExam are developed by experts with long experience in this field, and every answer is verified before publication. Second, update discipline: the bank is revised at high frequency, because exam content never stands still. Third, transparency: a free demo lets you inspect real sample questions and the practice interface before paying. Materials that cannot survive those three checks are not worth your money — ours are built to pass them.
The C2020-645 exam is the official examination for the IBM Cognos 10 BI Multidimensional Author certification from IBM. It measures whether you can apply the published exam objectives to realistic working scenarios, and in a job market where enterprises keep raising requirements, the resulting credential is a clear, verifiable advantage — for job seekers and for employees aiming at the next step alike.
According to the official outline, the C2020-645 exam is structured around weighted domains such as:
- Multidimensional Data Modeling ()
- Querying and Data Interaction ()
- Framework Manager Modeling ()
Because the exam evolves, the IBM Cognos 10 BI Multidimensional Author practice materials at RealValidExam are updated frequently — and the latest version is emailed to you automatically whenever a revision is released during your update period.
Official registration for the C2020-645 exam is available through:
Choose a date that leaves room for a full round of timed practice beforehand — the deadline itself is a powerful study tool.
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IBM lists these training resources for candidates:
Official training builds the knowledge; frequent practice with an up-to-date question bank builds the exam-day readiness. The two reinforce each other well.
Recommended experience with IBM Cognos BI tools and basic data warehousing/OLAP concepts. No strict formal prerequisite is publicly enforced.
IBM Cognos 10 BI Multidimensional Author Sample Questions:
The report author creates a source report that contains values from "Products" on which the report consumer will drill through for details. The report author has created a target report which expects a member from the source. Is this a supported drill-through combination?
- A. Yes, this member-to-value drill-through is a supported combination.
- B. No, this value-to-member drill-through is not a supported combination.
- C. Yes, this value-to-member drill-through is a supported combination.
- D. No, this member-to-value drill-through is not a supported combination.
Correct Answer: B 🗳️
Which of the following statements is true about a slicer?
- A. It affects the values of the cells of the report but not the rows or columns.
- B. It determines which set of members are displayed on the edges of the report.
- C. It removes all blank rows in the report to make it more focused.
- D. It keeps the summary column in the report, and removes the detail columns.
Correct Answer: A 🗳️
What is a key difference between the total function and the aggregate function?
- A. The aggregate function is dimensional, and the total function is relational.
- B. The aggregate function can only summarize within a set, and the total function can accept separate members.
- C. The aggregate function will summarize only the currentMeasure, and the total function will summarize any specified measure.
- D. The aggregate function follows the rollup rules of the measure defined in the data source, and the total function adds the total of the specified measure.
Correct Answer: D 🗳️
A report author uses the following expression: lastPeriods(3,[2007/Mar]). What data will be returned when the report is run?
- A. The total of currentMeasure for 3 months including 2007/Mar and the preceeding 2 months
- B. The last 3 months before 2007/Mar
- C. The month March of each of the 3 years 2005, 2006, and 2007
- D. 3 months, including 2007/Mar and the preceeding 2 months
Correct Answer: D 🗳️
The dialog box shown appears when a report is run.
What should the report author do to correct the situation?
- A. Modify the expression to change the 'currentMember' function to 'currentLevel'.
- B. Modify the expression to change the 'currentMember' function to 'currentHierarchy'.
- C. Modify the expression to 'currentMember([sales_and_marketing].[Products].[Products])'.
- D. Ask the modeler to rename the hierarchy to '[sales_and_marketing].[Products].[Products].[Products]', and to republish the package.
Correct Answer: C 🗳️
