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Zorluk: OrtaZero Trust Architecture Principles

A financial technology organization is refactoring its internal microservices communication architecture to align with Zero Trust Architecture (ZTA) principles. An application security architect specifies that internal services must no longer trust incoming network traffic based on IP subnets or internal network placement. Instead, every request must be dynamically evaluated against contextual security policies and session health attributes before access is granted. Which logical component within the Zero Trust framework is directly responsible for evaluating these access policies and rendering the authorization decision?

  1. Policy Decision Point (PDP)Cevap
  2. B
    Policy Enforcement Point (PEP)
  3. C
    Perimeter Next-Generation Firewall (NGFW)
  4. D
    Endpoint Detection and Response (EDR) Agent

Cevap

The Policy Decision Point (PDP) is the component responsible for evaluating access policies and rendering authorization decisions.
The Policy Decision Point (PDP) is the ultimate decision-making component in a Zero Trust Architecture. It receives contextual telemetry (such as user identity, device posture, and risk factors), compares it against enterprise security policies, and outputs an authorization determination.

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1
Identify the primary responsibility described in the scenario
The requirement is to evaluate dynamic contextual policies and render an authorization decision for microservices requests.
Zero Trust Architecture separates the decision-making control plane from the enforcement data plane.
2
Differentiate between Zero Trust control plane functional components
The Policy Decision Point (PDP) makes authorization decisions, whereas the Policy Enforcement Point (PEP) enforces those decisions at the traffic gate.
Understanding the division of responsibilities ensures correct architecture design.

Anahtar Kavram

Zero Trust Policy Decision Point (PDP) vs Policy Enforcement Point (PEP)
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