hardMultiple Choice
FC0-U71 Practice Question: An IT manager is evaluating a cloud storage…
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?
⚠ Common exam trap
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.
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 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.
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
A 99.9% uptime SLA is a standard, generally acceptable commitment for backup storage, so it does not represent the actual risk. It tempts because availability matters for critical data, but the stem's multi-tenancy detail points to tenant isolation and data leakage concerns instead.
- ✗
The encryption might slow down data transfers
Why it's wrong here
Encryption overhead is negligible with modern hardware acceleration and does not undermine security or availability. It tempts because encryption does consume processing resources, but the stem's multi-tenancy detail points to tenant isolation and potential data leakage between customers as the real concern.
- ✗
The geo-redundancy might cause latency
Why it's wrong here
Geo-redundancy replicates data across regions for durability and disaster recovery; latency is irrelevant for backup workloads that tolerate asynchronous writes. It tempts because geographic distribution can affect access times, but the stem's multi-tenancy detail raises tenant isolation and data leakage concerns instead.
- ✓
The data might be accessible by other tenants
Why this is correct
Multi-tenancy means several customers share the same physical infrastructure and storage layer. Although encryption at rest and in transit plus geo-redundancy address confidentiality in transit and durability, logical isolation failures could expose one tenant's data to another, so the manager must verify tenant isolation controls.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA 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 FC0-U71 exam.