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CV0-004 Practice Question: Which TWO are best practices for designing a…
Which TWO are best practices for designing a multi-tenant SaaS application on a public cloud?
⚠ Common exam trap
It's easy for candidates to confuse 'dedicated resources' with 'best practice' for multi-tenancy, but the exam expects you to recognize that shared infrastructure with proper isolation (e.g., row-level security, separate VPCs) is more scalable and cost-effective than dedicated per-tenant resources.
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
✓
Use separate virtual networks or VPCs for each tenant
Using separate virtual networks or VPCs for each tenant provides strong network isolation, preventing cross-tenant traffic and reducing the blast radius of a security breach. This aligns with the shared responsibility model in public cloud SaaS design, where the provider ensures infrastructure-level separation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Assign a dedicated database instance per tenant
Why it's wrong here
Costly and hard to manage at scale.
- ✓
Use separate virtual networks or VPCs for each tenant
Why this is correct
Provides network isolation.
- ✓
Implement row-level security in a shared database
Why this is correct
Efficient and secure.
- ✗
Deploy all tenants on a single large compute instance
Why it's wrong here
Noisy neighbor and security risks.
- ✗
Offer the same service tier to all tenants
Why it's wrong here
Not a best practice for multi-tenancy design.
Quick reference
AAA Protocol Comparison
| Protocol | Port(s) | Encryption | Transport | Primary Use |
|---|---|---|---|---|
| RADIUS | 1812 / 1813 | Password only | UDP | Network access control |
| TACACS+ | 49 | Full packet | TCP | Device administration |
| Diameter | 3868 | Full session | TCP / SCTP | Carrier / mobile networks |
| 802.1X | — | EAP-based | Layer 2 | Port-based access control |
TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 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 CV0-004 exam.