- A
The cloud provider is responsible for managing customer application encryption keys
Why wrong: Customers manage their own encryption keys; providers may offer key management services but do not take ownership.
- B
The customer is responsible for network firewall configuration in PaaS
Why wrong: In PaaS, the provider manages the underlying network; customer's responsibility is application-level.
- C
The customer is responsible for securing data stored in the cloud
Customers must protect their data through encryption, access controls, etc.
- D
The cloud provider is responsible for patching the guest operating system in IaaS
Why wrong: In IaaS, the customer manages the OS and its patches; the provider manages the hypervisor.
- E
The cloud provider is responsible for physical security of data centers
Providers handle physical security, network infrastructure, and hardware.
Quick Answer
The answer is that the cloud provider is responsible for physical security of data centers, while the customer is responsible for securing data and application configurations. This division defines the shared responsibility model in cloud computing, where the provider handles security *of* the cloud—physical infrastructure, hardware, and facilities—and the customer handles security *in* the cloud, including data, access policies, and application-level settings. On the Certified Ethical Hacker CEH exam, this concept tests your understanding of boundary ownership in cloud environments, often appearing in questions about IaaS, PaaS, or SaaS deployment models. A common trap is assuming the provider patches your operating system in IaaS, but that duty falls to you as the customer; the provider never manages customer-applied encryption. For a quick memory tip, remember the phrase “provider owns the floor, you own the door”—the physical building is theirs, but you lock your own data.
CEH Practice Question: Advanced Topics: Wireless, Cloud, IoT, Cryptography
This CEH practice question tests your understanding of advanced topics: wireless, cloud, iot, cryptography. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO of the following correctly describe aspects of the shared responsibility model in cloud computing?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The customer is responsible for securing data stored in the cloud
The customer is responsible for securing data and application configurations (security IN the cloud). The provider is responsible for the physical infrastructure (security OF the cloud). Option B is incorrect because customers are responsible for OS patching in IaaS. Option E is wrong because providers do not manage customer-applied encryption.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The cloud provider is responsible for managing customer application encryption keys
Why it's wrong here
Customers manage their own encryption keys; providers may offer key management services but do not take ownership.
- ✗
The customer is responsible for network firewall configuration in PaaS
Why it's wrong here
In PaaS, the provider manages the underlying network; customer's responsibility is application-level.
- ✓
The customer is responsible for securing data stored in the cloud
Why this is correct
Customers must protect their data through encryption, access controls, etc.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
The cloud provider is responsible for patching the guest operating system in IaaS
Why it's wrong here
In IaaS, the customer manages the OS and its patches; the provider manages the hypervisor.
- ✓
The cloud provider is responsible for physical security of data centers
Why this is correct
Providers handle physical security, network infrastructure, and hardware.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CEH NAT questions on configuration and troubleshooting.
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Advanced Topics: Wireless, Cloud, IoT, Cryptography — study guide chapter
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Advanced Topics: Wireless, Cloud, IoT, Cryptography practice questions
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FAQ
Questions learners often ask
What does this CEH question test?
Advanced Topics: Wireless, Cloud, IoT, Cryptography — This question tests Advanced Topics: Wireless, Cloud, IoT, Cryptography — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The customer is responsible for securing data stored in the cloud — The customer is responsible for securing data and application configurations (security IN the cloud). The provider is responsible for the physical infrastructure (security OF the cloud). Option B is incorrect because customers are responsible for OS patching in IaaS. Option E is wrong because providers do not manage customer-applied encryption.
What should I do if I get this CEH question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CEH NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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Last reviewed: Jun 21, 2026
This CEH practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CEH exam.
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