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Tools / Zero Trust Architecture (ZTA) Interview questions

What are the main pillars of Zero Trust Architecture?

Most Zero Trust maturity models, including CISA's, organize the architecture around a small set of pillars that each need their own controls and continuous verification.

PillarFocus
IdentityStrong, continuously verified authentication for users and workloads
DevicePosture, compliance, and health of endpoints requesting access
Network/EnvironmentMicrosegmentation and encrypted traffic between resources
Application/WorkloadSecuring the app layer and runtime, not just the network path to it
DataClassification-driven protection independent of network location

Visibility, analytics, and automation cut across all five pillars, feeding the signals that policy decisions depend on.

Which of the following is one of the core Zero Trust pillars?
Visibility, analytics, and automation are best described as:

More Related questions...

What is Zero Trust Architecture (ZTA)? What is the core principle behind Zero Trust? What are the main pillars of Zero Trust Architecture? What is a Policy Decision Point (PDP) in Zero Trust? What is a Policy Enforcement Point (PEP)? What is microsegmentation in Zero Trust? What are the types of trust assumptions eliminated in ZTA? Define "least privilege access" in the context of Zero Trust? Describe the role of identity in Zero Trust Architecture? List the key components of the NIST Zero Trust Architecture model (SP 800-207)? What is continuous authentication in Zero Trust? What is a Zero Trust Network Access (ZTNA) solution? How do you apply the principle of “never trust, always verify” in daily operations? What is device posture assessment in Zero Trust? What is multi-factor authentication's role in Zero Trust? How do you use a software-defined perimeter (SDP) in Zero Trust? What is the trust broker or control plane in Zero Trust? What is a Zero Trust policy engine, and what inputs does it use? Why is the “assume breach” mindset central to Zero Trust? How does Zero Trust differ from the traditional perimeter security model? What is the difference between Zero Trust and VPN-based remote access? Why do we use mutual TLS (mTLS) in Zero Trust architectures? How does microsegmentation limit lateral movement? When should you implement Zero Trust for legacy applications? What happens when a device fails a posture check in a Zero Trust environment? How is risk-based or adaptive access control implemented in Zero Trust? Why should you separate the control plane from the data plane in ZTA? What is the difference between identity-based and network-based segmentation? How does Zero Trust handle east-west traffic differently from north-south traffic? Which is better for remote access, ZTNA or traditional VPN, and why? How can you optimize policy evaluation performance in a large Zero Trust deployment? How do you troubleshoot access denials in a Zero Trust policy engine? Why is continuous monitoring more important than one-time authentication in ZTA? What is the difference between Zero Trust and Zero Trust Network Access (ZTNA)? How does Zero Trust apply to cloud workloads and containers? When would you choose attribute-based access control (ABAC) over role-based (RBAC) in ZTA? Why doesn't Zero Trust eliminate the need for perimeter defenses entirely? What is the difference between implicit trust zones and explicit trust zones? How does Zero Trust integrate with Security Information and Event Management (SIEM) systems? Why is device identity as important as user identity in Zero Trust? Explain the execution flow of a Zero Trust access request from device to resource? Explain the internal working of a Policy Decision Point evaluating a request? Explain the lifecycle of a service-to-service authentication in a Zero Trust mesh? How do you design a Zero Trust migration roadmap for a legacy enterprise network? How does Zero Trust architecture affect incident response and blast radius containment? Explain the internal working of continuous adaptive trust scoring? How do you troubleshoot policy conflicts across multiple enforcement points in a large ZTA deployment? Explain the execution flow of certificate-based mutual authentication in a service mesh under Zero Trust? How does Zero Trust Architecture change the threat model for insider threats? Explain how Zero Trust principles apply differently across identity, network, and data pillars in a unified strategy?
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