Many candidates know the material but lose marks to pacing. The online test engine included with the IBM Cognos 10 BI Multidimensional Author package at RealVCE simulates the real C2020-645 exam atmosphere, lets you set your own time limits, and flags your problem questions automatically for repeated review.
IBM C2020-645 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Cognos 10 BI Multidimensional Author |
| Exam Number: | C2020-645 |
| Available Languages: | English, Japanese |
| Exam Duration: | 60 minutes |
| Passing Score: | 75% |
| Real Exam Qty: | 56-57 |
| Exam Format: | Multiple Choice, Multiple Response |
| Related Certifications: | IBM Certified Designer - Cognos BI Multidimensional Reports (C2090-645) IBM Cognos 10 BI Author |
| Exam Price: | USD 200 |
| Certificate Validity Period: | Retired, no longer valid for new certification |
| Recommended Training: | IBM Cognos Report Studio User Guide 10.2.x IBM Cognos Event Studio User Guide |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: |  |
| Exam Way: | Onsite at Pearson VUE authorized centers; retired, no longer available |
| Pre Condition: | Basic knowledge of IBM Cognos Report Studio and BI concepts |
| Official Syllabus URL: | https://www-03.ibm.com/certify/exam.html?id=C2090-645 |
IBM C2020-645 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Dimensional Data Components | 28% | - Sets, tuples, and report context - Multidimensional structure: dimensions, hierarchies, levels, members - Data source types: relational, DMR, dimensional - MUN (Member Unique Name) and default members |
| Drilling in Reports | 14% | - Default drill-down and drill-up behavior - Customizing drill paths |
| Focus Reports | 14% | - Dimensional vs relational filtering - Slicers and member-based filtering - Measure-based filtering |
| Drill-through Access | 8% | - Conformed dimensions and target reports - Setting up drill-through definitions |
| Calculations and Dimensional Functions | 36% | - Dimensional functions: aggregate, currentMember, ancestor, etc. - Complex reusable expressions - Arithmetic and logical expressions - Data type coercion and prompt integration |
Everything to Know About the IBM Cognos 10 BI Multidimensional Author Exam
The C2020-645 exam is the official assessment for the IBM Cognos 10 BI Multidimensional Author certification offered by IBM. It checks whether you can apply the knowledge areas in the exam objectives to practical situations, and passing it earns a credential that employers across the industry recognize. For professionals who feel stuck in their current role, it is often the most concrete next step available.
Basic knowledge of IBM Cognos Report Studio and BI concepts
The official outline for the C2020-645 exam highlights these domains:
- Focus Reports (14%)
- Drilling in Reports (14%)
- Calculations and Dimensional Functions (36%)
Weighting your study time toward the heavier domains first is a sensible strategy, and the IBM Cognos 10 BI Multidimensional Author practice questions at RealVCE follow the same objective structure.
IBM recommends the following training resources for C2020-645 exam candidates:
Pairing official courses with timed practice sessions tends to work well, since one builds knowledge and the other builds exam-day rhythm.
The C2020-645 exam gives you 60 minutes minutes to answer 56-57 questions. That pace leaves little room for hesitation, which is why rehearsing under a timer — for example with the online test engine at RealVCE, where you can set the session length just like the real test — is such a useful habit.
The online test engine is exclusive to RealVCE and runs on any electronic device — phone, tablet, or computer — with no installation barriers. It recreates the atmosphere of the real C2020-645 exam: you set the test time the way it will be on exam day, work through the IBM Cognos 10 BI Multidimensional Author practice questions under that pressure, and at the end the engine marks the questions you got wrong and reminds you to practice them again next time. Over a few sessions, that loop turns weak areas into reliable ones.
To pass the C2020-645 exam you need a score of 75%, and the registration fee is USD 200. Since each attempt costs the full fee, arriving over-prepared is cheaper than arriving under-prepared — timed mock sessions and repeated review of missed questions are the usual ways candidates close that gap.
Registration for the C2020-645 exam is handled through the official channels below:
Once your practice scores look consistent, booking a date gives your preparation a firm deadline to work toward.
Right after payment you get instant access to the C2020-645 exam product — 57 practice questions for the IBM Cognos 10 BI Multidimensional Author exam with expert-verified answers — and the download link is also emailed to you automatically, typically within a minute. Your purchase includes 365 days of free updates; our team checks for exam changes daily, and when a new version is released the system sends it straight to your mailbox. A 50% renewal discount applies if you extend updates beyond the first year, and payment by Credit Card is handled through a secure checkout.
IBM Cognos 10 BI Multidimensional Author Sample Questions:
What dimensional function is used to return the members on the level below the Product line level?
- A. members
- B. Descendants
- C. Children
- D. Set
Correct Answer: B 🗳️
The following expression is used in a crosstab report: filter([sales_and_marketing]. [Product brand].[Product brand].[Product brand type],[Revenue]<100000000). There are 26 product brand types in the OLAP data source.
Why does the report only return 11 product brand type rows?
- A. A relational function was used to filter on the members, not the measure values.
- B. A relational function was used to filter on the measure values, not the members.
- C. A dimensional function was used to filter on each column.
- D. A dimensional function was used to filter on the total of the opposite edge.
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 month March of each of the 3 years 2005, 2006, and 2007
- B. The last 3 months before 2007/Mar
- C. The total of currentMeasure for 3 months including 2007/Mar and the preceeding 2 months
- D. 3 months, including 2007/Mar and the preceeding 2 months
Correct Answer: D 🗳️
If the syntax for the head function is head(set_exp[,index_exp]),then which of the following expressions is correct?
- A. head(members([sales_and_marketing].[Products].[Products].[Product line]),2)
- B. head(order([sales_and_marketing].[Products].[Products].[Product line])2)
- C. head(members([sales_and_marketing].[Products].[Products].[Product line],2))
- D. head(([sales_and_marketing].[Products].[Products].[Product line])[,2])
Correct Answer: A 🗳️
A report author creates the following nested report using 2 adjacent levels of the same hierachy. Users should be able to drill down on the inner nesting with the outer nesting remaining unchanged.
What advanced drilling behavior should the report author use to achieve this?
- A. Preserve
- B. Depth Based Expression
- C. Replace Expression
- D. Replace Item
Correct Answer: A 🗳️
