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Exam CBAP topic 1 question 83 discussion

Actual exam question from IIBA's CBAP
Question #: 83
Topic #: 1
[All CBAP Questions]

You are the business analyst for a solution that has 435 stakeholders.
How many communication channels exist in this project?

  • A. 188,790
  • B. 189,225
  • C. 94,395
  • D. 435
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Suggested Answer: C 🗳️

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eiadsaadah
Highly Voted 3 years, 11 months ago
435*(435-1)/2=94,395
upvoted 21 times
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ElyonSenjo
Highly Voted 2 years, 2 months ago
N(N-1)/2 where N is the number of stakholders
upvoted 5 times
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Rabbitsfoot
Most Recent 3 months, 2 weeks ago
Selected Answer: C
The formula for calculating the number of communication channels is derived from the fact that in a group of (N) people, each person can potentially communicate with every other person except themselves. 435*(435-1) = 188 790 When one person communicates with another, it creates a two-way channel - one from person A to person B and another from person B to person A. Hence, each pair of stakeholders adds two channels. However, when we calculate the total number of communication channels, each pair is counted twice (once for each stakeholder in the pair). Therefore, to avoid double-counting, we divide the result by 2. This ensures that each unique communication channel is counted only once. 188 792 / 2 = 94 395
upvoted 2 times
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bvee
1 year, 11 months ago
BaBOKv2
upvoted 2 times
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Alwaysmoses
2 years ago
The formula for this is in the Project management professional book. PMBOK
upvoted 2 times
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em1235678
2 years, 4 months ago
How did you find the formula?
upvoted 2 times
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