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Difficulty: HardCloud Architecture and Deployment Models

An enterprise security architecture team is auditing security responsibility boundaries across diverse cloud deployment models and specialized security integrations. Which operational security responsibility correctly aligns with each cloud architecture or deployment model?

  • API-based Cloud Access Security Broker (CASB)Enforces security policies and Data Loss Prevention (DLP) via direct integration with cloud provider management interfaces without inline network traffic redirection.
  • On-Premises Private CloudRequires the enterprise to maintain full security management over physical hardware, hypervisor updates, virtual network configuration, and guest workloads.
  • Managed Platform as a Service (PaaS) Container ServicePlaces control plane and underlying infrastructure patching on the cloud provider while keeping application security, container images, and data governance on the customer.
  • Community Cloud DeploymentDistributes security governance and infrastructure costs across multiple distinct organizations sharing common compliance and security requirements.

Answer

API-based CASB matches with enforcing policies out-of-band via direct provider APIs. On-Premises Private Cloud matches with retaining full control over physical hardware, hypervisors, and workloads. Managed PaaS Container Service matches with customer responsibility for application code and container images while provider manages the control plane. Community Cloud Deployment matches with sharing governance and costs among organizations with joint compliance goals.
Each deployment model and cloud architectural control has specific boundaries: API CASBs operate out-of-band via cloud APIs; On-Premises Private Clouds demand full physical and virtualization stack management by the enterprise; PaaS container platforms split responsibility between provider control planes and tenant container content; and Community Clouds distribute shared governance across multiple affiliated entities.

Step-by-Step Solution

1
Analyze API-based CASB operational architecture.
Identify out-of-band API integration as the defining characteristic compared to inline proxies.
API CASBs inspect data at rest and event logs directly via provider interfaces rather than intercepting active inline network traffic.
2
Evaluate On-Premises Private Cloud responsibility boundaries.
Confirm 100% customer responsibility for physical hardware, virtualization layer, and guest OS security.
Private clouds hosted locally do not offload any layer of physical or hypervisor security to a third-party cloud service provider.
3
Delineate PaaS managed container service responsibilities under the shared responsibility model.
Separate container application runtime security from infrastructure control plane security.
The provider secures the host OS, orchestrator nodes, and physical hardware, while the tenant secures container images and application code.
4
Classify Community Cloud deployment governance features.
Link to multi-organizational resource and governance sharing based on joint mission or regulatory needs.
Community clouds exist to service specific groups with common requirements (e.g., healthcare or government agencies).

Key Concept

Cloud Shared Responsibility Model and Cloud Architecture Integrations
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Topics

Cloud Architecture and Deployment Models

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