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BCS CISMP-V9 Exam - Topic 9 Question 100 Discussion

Which of the following is considered to be the GREATEST risk to information systems that results from deploying end-to-end Internet of Things (IoT) solutions?
B) Much larger attack surface than traditional IT systems.
A) Use of 'cheap' microcontroller based sensors.
C) Use of proprietary networking protocols between nodes.
D) Use of cloud based systems to collect loT data.

BCS CISMP-V9 Exam - Topic 9 Question 100 Discussion

Actual exam question for BCS's CISMP-V9 exam
Question #: 100
Topic #: 9
[All CISMP-V9 Questions]

Which of the following is considered to be the GREATEST risk to information systems that results from deploying end-to-end Internet of Things (IoT) solutions?

Show Suggested Answer Hide Answer
Suggested Answer: B

The deployment of end-to-end Internet of Things (IoT) solutions significantly increases the attack surface compared to traditional IT systems. This is due to the vast number of connected devices, each potentially introducing new vulnerabilities. The heterogeneity of these devices, often with varying levels of security, can lead to more entry points for cyberattacks. Additionally, the complexity of managing and securing these numerous devices, especially when they use different communication protocols and standards, exacerbates the risk. Therefore, the expansion of the attack surface is considered the greatest risk because it amplifies the potential for unauthorized access and compromises the integrity, availability, and confidentiality of information systems.


by Cherelle at Jul 04, 2025, 12:44 PM

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Layla
9 months ago
D is concerning, but I think B is the biggest risk overall.
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Fausto
9 months ago
C is a problem, proprietary protocols can be really risky.
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Daisy
10 months ago
Wow, I didn't realize how much bigger the attack surface is!
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Justine
10 months ago
I’m not so sure about that, A could be a huge issue too.
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Terrilyn
10 months ago
Definitely B, the attack surface is way bigger now.
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Gwenn
10 months ago
Cloud-based systems for IoT data collection definitely have risks, but I wonder if they are more significant than the attack surface problem.
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Oretha
10 months ago
I practiced a question similar to this, and I think the proprietary protocols might create risks, but they don't seem as critical as the attack surface.
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Elroy
11 months ago
I think the use of cheap microcontrollers could lead to vulnerabilities, but I feel like the attack surface is a bigger issue overall.
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Valentin
11 months ago
I remember discussing how the larger attack surface of IoT devices could be a major concern, but I'm not entirely sure if it's the greatest risk.
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Ryann
11 months ago
I feel pretty confident that the answer is B. IoT systems connect so many more devices and endpoints, that has to be the biggest risk factor.
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Sue
11 months ago
Okay, let me break this down. The key is understanding how IoT systems differ from traditional IT and what the biggest vulnerability would be. I'm leaning towards B.
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Hannah
11 months ago
Hmm, I'm not sure about this one. The options all seem plausible risks, I'll have to think it through carefully.
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Lindsey
12 months ago
This question seems straightforward, I think the answer is B - a much larger attack surface than traditional IT systems.
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Honey
1 year ago
I still think B) is the biggest risk, but C) is definitely something to consider as well.
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Celestine
1 year ago
D seems tempting, but cloud-based systems can be secured. I agree that B is the greatest risk - all those IoT devices are just asking to be hacked.
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France
1 year ago
Haha, 'cheap' microcontrollers in A? That's a good one. I'm going with B though, the attack surface is just too huge to ignore.
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Lore
1 year ago
Hmm, I'm not sure. The use of proprietary protocols in C could also be a major issue, making it harder to secure the system. But B does seem like the biggest overall risk.
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Viva
1 year ago
C) Use of proprietary networking protocols between nodes.
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Dyan
1 year ago
B) Much larger attack surface than traditional IT systems.
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Latosha
1 year ago
A) Use of 'cheap' microcontroller based sensors.
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Viva
1 year ago
C) Use of proprietary networking protocols between nodes.
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Tashia
1 year ago
B) Much larger attack surface than traditional IT systems.
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Jacklyn
1 year ago
A) Use of 'cheap' microcontroller based sensors.
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Raina
1 year ago
That's a good point, Marshall. Proprietary protocols could make it harder to secure the system.
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Marshall
1 year ago
I believe C) Use of proprietary networking protocols between nodes could also pose a risk.
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Dana
1 year ago
I think the answer is B. A larger attack surface due to the interconnected nature of IoT systems is a huge risk. All those endpoints are vulnerable entry points for hackers.
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Jackie
1 year ago
B) Much larger attack surface than traditional IT systems.
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Felicia
1 year ago
A) Use of 'cheap' microcontroller based sensors.
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Honey
1 year ago
I agree with Raina, having a larger attack surface is definitely a major concern.
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Raina
1 year ago
I think the greatest risk is B) Much larger attack surface than traditional IT systems.
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