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Exin CDCS Exam - Topic 2 Question 30 Discussion

What is the redundancy setup shown in the diagram?
B) N+2
A) 2+N+1
C) N+N+N
D) 2(N+1)

Exin CDCS Exam - Topic 2 Question 30 Discussion

Actual exam question for Exin's CDCS exam
Question #: 30
Topic #: 2
[All CDCS Questions]

What is the redundancy setup shown in the diagram?

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Suggested Answer: B

The diagram shows three UPS modules, each 100 kW, connected in parallel to support a 100 kW IT load. That means:

One module (100 kW) can support the load (N).

Two additional modules are installed as redundancy.

This equals N+2 redundancy.

2+N+1 and 2(N+1) imply dual active paths not shown.

N+N+N is not an industry term.

Thus, the correct redundancy level is N+2.


by Felton at May 26, 2026, 05:31 PM

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Zita
5 hours ago
C) N+N+N? Not sure about that one. Too complex.
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Hobert
5 days ago
A) 2+N+1 makes sense for redundancy.
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Blossom
11 days ago
I’m leaning towards D) 2(N+1). Seems reliable.
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Gearldine
16 days ago
I feel like B) N+2 could work too. More flexibility.
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Aleisha
21 days ago
I think it's A) 2+N+1. Looks solid.
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Brice
26 days ago
I’m surprised it’s not just a simple N+N+N!
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Louann
1 month ago
Wait, is it really that complicated?
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Frank
1 month ago
Definitely 2(N+1), can't be anything else!
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Aja
1 month ago
I think it's N+2, not sure though.
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Bonita
2 months ago
Looks like a 2+N+1 setup to me.
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Pamella
2 months ago
I feel like I’ve seen N+N+N in a different context, but I’m not confident it applies here.
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Sherrell
2 months ago
I'm leaning towards D) 2(N+1) because it sounds familiar, but I need to double-check my notes on redundancy setups.
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Erinn
2 months ago
I remember practicing a question similar to this, and I think N+2 was a common answer, but I can't recall the specifics.
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Junita
2 months ago
I think the redundancy setup might be 2+N+1, but I'm not entirely sure how to differentiate it from the others.
upvoted 0 times
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