GSEC Virtualization, Cloud, and AI Essentials Practice Question
A startup is deploying a web application on a public cloud infrastructure-as-a-service platform. The security lead wants to ensure that the operating system patches, application code, and firewall rules within the guest are the startup's responsibility, while the physical hosts and hypervisor are the provider's. Which cloud concept clarifies this division?
⚠ Common exam trap
The trap here is selecting a familiar security principle like least privilege or defense in depth when the question specifically asks which concept defines the boundary of provider versus customer security duties.
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 shared responsibility model
The shared responsibility model is the framework that assigns security ownership between the cloud provider and the customer. For IaaS, the provider handles the physical datacenter, hardware, and hypervisor, while the customer is responsible for the guest OS, applications, and guest-level firewall configuration. The other concepts address access scope, layered controls, or automation, not the division of duties.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Infrastructure as code
Why it's wrong here
Infrastructure as code is the practice of managing and provisioning infrastructure through machine-readable definition files. It improves consistency and auditability but does not assign security responsibilities between a provider and a customer. The question is about responsibility boundaries, not deployment automation, so this option does not answer the scenario.
- ✓
The shared responsibility model
Why this is correct
The shared responsibility model defines which security tasks belong to the cloud provider and which belong to the customer. In IaaS, the provider secures the physical facilities, hosts, and hypervisor, while the customer secures the guest operating system, applications, and guest firewall rules. This directly matches the division the security lead wants to clarify.
- ✗
Defense in depth
Why it's wrong here
Defense in depth is a strategy of layering multiple controls so that failure of one does not compromise the whole. It does not specify who patches the operating system or secures the hypervisor. The scenario asks for the concept that divides provider and customer duties, which defense in depth does not define, making it the wrong fit.
- ✗
The principle of least privilege
Why it's wrong here
Least privilege is an access control principle that grants users and services only the permissions needed to perform their tasks. It does not describe the split of security duties between a cloud provider and a customer. While valuable, it addresses authorization scope, not the allocation of patching and infrastructure responsibilities described in the scenario.
About these practice questions
This GSEC question is part of Courseiva's 351-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official GIAC exam blueprint
This GSEC practice question is part of Courseiva's free GIAC 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 GSEC exam.