PGMP · Question #283
You are the program manager for the BHN Program. Your program has 122 stakeholders that you'll need to plan to communicate with. Considering the size of the program how many communication channels…
The correct answer is D. 7,381. The number of communication channels is calculated using the formula n(n-1)/2, yielding 7,381 channels for 122 stakeholders.
Question
You are the program manager for the BHN Program. Your program has 122 stakeholders that you'll need to plan to communicate with. Considering the size of the program how many communication channels do you have in this program?
Options
- A244
- B122
- C14,884
- D7,381
How the community answered
(22 responses)- A14% (3)
- B5% (1)
- C9% (2)
- D73% (16)
Why each option
The number of communication channels is calculated using the formula n(n-1)/2, yielding 7,381 channels for 122 stakeholders.
244 is simply 122 multiplied by 2, which does not correspond to any recognized communication channels formula.
122 equals the number of stakeholders, not the number of communication channels that exist between them.
14,884 is 122 squared (n^2), which omits the required subtraction of n and division by 2 from the correct formula.
Applying the communication channels formula n(n-1)/2 with n=122: 122 x 121 / 2 = 14,762 / 2 = 7,381. This formula calculates the total number of potential two-way communication paths between all stakeholders. It is a standard PMP formula used to quantify communication complexity and plan communications management.
Concept tested: Communication channels formula n(n-1)/2
Source: https://www.pmi.org/pmbok-guide-standards/foundational/pmbok
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