The answer is that the data might be accessible by other tenants, as the core risk of multi-tenancy cloud storage is data isolation failure. Even with encryption at rest and in transit, the decrypted data becomes vulnerable during processing, and a flaw in the hypervisor or storage layer could allow one tenant to read another’s data, directly undermining the security guarantees of the service. On the CompTIA ITF+ FC0-U61 exam, this concept tests your understanding of shared responsibility and the inherent risks of multi-tenancy in IaaS and PaaS models—a common trap is assuming encryption alone eliminates all threats. Remember the mnemonic “MAD” for Multi-tenancy: Misconfiguration, Access flaws, Decryption risk.
FC0-U61 IT Concepts and Terminology Practice Question
This FC0-U61 practice question tests your understanding of it concepts and terminology. 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.
An IT manager is evaluating a cloud storage service for backup of critical company data. The manager is concerned about data security and availability. The service offers encryption at rest and in transit, 99.9% uptime SLA, and geo-redundancy. However, the service uses multi-tenancy. Which of the following is a potential concern the manager should address?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The data might be accessible by other tenants
The primary concern with multi-tenancy in a cloud storage service is the risk of data isolation failure, where a vulnerability or misconfiguration could allow one tenant to access another tenant's data. Even with strong encryption at rest and in transit, the data must be decrypted for processing, and if the hypervisor or storage layer has a flaw, other tenants could potentially read the decrypted data. This is a well-known security risk in shared infrastructure models like IaaS and PaaS.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 uptime SLA is not sufficient
Why it's wrong here
99.9% uptime is commonly acceptable for many cloud services.
✗
The encryption might slow down data transfers
Why it's wrong here
Encryption overhead is generally negligible and a standard security measure.
✗
The geo-redundancy might cause latency
Why it's wrong here
Geo-redundancy is designed for availability, not a typical cause of latency.
✓
The data might be accessible by other tenants
Why this is correct
Multi-tenancy increases the risk of data leakage if proper isolation fails.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may focus on encryption or SLA metrics as the main security concern, overlooking the fundamental risk of data leakage in a shared multi-tenant architecture, which is a core concept in cloud computing security models.
Detailed technical explanation
How to think about this question
Multi-tenancy relies on logical isolation mechanisms such as hypervisor memory segmentation, storage volume access controls, and API authentication tokens. A real-world example is the 2019 Capital One breach, where a misconfigured web application firewall (WAF) in a multi-tenant AWS environment allowed an attacker to access S3 data belonging to other customers. Even with encryption, the decryption keys are often managed by the cloud provider, and a compromise of the key management system could expose data across tenants.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
IT Concepts and Terminology — This question tests IT Concepts and Terminology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The data might be accessible by other tenants — The primary concern with multi-tenancy in a cloud storage service is the risk of data isolation failure, where a vulnerability or misconfiguration could allow one tenant to access another tenant's data. Even with strong encryption at rest and in transit, the data must be decrypted for processing, and if the hypervisor or storage layer has a flaw, other tenants could potentially read the decrypted data. This is a well-known security risk in shared infrastructure models like IaaS and PaaS.
What should I do if I get this FC0-U61 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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