D-ZT-DS-23 Dell Zero Trust Design Practice Questions
Prepare for D-ZT-DS-23 with more than an answer.
- Level
- Specialist
Domains covered on the exam 9
- Introduction to Zero Trust8%
- Zero Trust Tenets and Pillars14%
- Applying Zero Trust22%
- Zero Trust in Networks12%
- Data Centric Zero Trust10%
- Identity based Zero Trust12%
- Zero Trust for the Cloud4%
- Hybrid Zero Trust4%
- Monitoring and Maintenance14%
- 1
A cloud architect is designing a new application environment. To adhere to the Zero Trust tenet of 'Assume Breach', which of the following architectural decisions is most appropriate?
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Correct answer: B
The 'Assume Breach' tenet mandates that architects design systems as if the network is already compromised. By implementing microsegmentation and end-to-end encryption internally, the architect limits lateral movement and data exposure even if an attacker bypasses perimeter defenses.
- 2
A large manufacturing company is developing a Zero Trust implementation roadmap. The organization currently has a flat network, limited visibility into device health, and relies on static passwords. The CIO wants to implement Zero Trust across all pillars simultaneously to achieve 'optimal' maturity within six months.
As a Zero Trust consultant, what is the most appropriate recommendation regarding this implementation strategy?
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Correct answer: B
Zero Trust is a journey, not a single deployment. Attempting to implement all pillars simultaneously to reach optimal maturity in a short timeframe is a common pitfall that often leads to business disruption and project failure. A phased roadmap is critical. Organizations must map their current state, identify critical protect surfaces, and mature sequentially (Traditional -> Advanced -> Optimal) starting with high-impact, low-friction areas like Identity (MFA) and basic visibility.
gantt title Zero Trust Phased Roadmap Example dateFormat YYYY-MM-DD section Phase 1: Identity & Visibility Deploy MFA & SSO :done, p1, 2024-01-01, 60d Asset Discovery :done, p2, 2024-01-15, 45d section Phase 2: Network & Device Microsegmentation Pilot :active, p3, after p1, 90d Device Compliance Checks : p4, after p2, 60d section Phase 3: Advanced/Optimal Continuous Auth : p5, after p3, 120d Automated SOAR Responses : p6, after p4, 120d - 3
When comparing a Software Defined Perimeter (SDP) approach to a traditional Virtual Private Network (VPN), which of the following is the defining operational characteristic of SDP?
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Correct answer: B
The fundamental paradigm shift of Software Defined Perimeter (SDP) is 'authenticate first, connect second'. Unlike traditional VPNs that connect users to a network (connect first, authenticate second) exposing the infrastructure to lateral movement, SDP creates a 'dark cloud' where infrastructure is invisible until the user and device are authenticated and authorized for specific applications.
- 4
Enhanced Identity Governance (EIG) goes beyond traditional Identity and Access Management (IAM) by providing which of the following capabilities critical for Zero Trust?
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Correct answer: B
Enhanced Identity Governance (EIG) elevates standard IAM by incorporating continuous risk assessments, dynamic policy enforcement, automated provisioning/de-provisioning, and contextual access (e.g., location, time, device health). This continuous evaluation is a core requirement of Zero Trust identity pillars.
- 5
When designing a Zero Trust architecture based on NIST SP 800-207, which component is explicitly responsible for computing the access decision based on enterprise policy and input from external sources?
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Correct answer: C
According to NIST SP 800-207, the Policy Engine (PE) is the core component that computes whether a subject is granted access to a resource. It analyzes enterprise policy alongside inputs from external sources like threat intelligence and CDM. The Policy Administrator (PA) executes this decision by communicating with the Policy Enforcement Point (PEP), which physically or logically blocks or allows the traffic.
- 6
A multinational financial services firm is transitioning from a traditional perimeter-based security model to a Zero Trust architecture. They currently rely heavily on VPNs for remote access and stateful firewalls for internal segmentation. The Chief Information Security Officer (CISO) needs to present a business case to the board that justifies the transition.
Which of the following arguments provides the most compelling business case for moving away from their current de-perimeterization state toward a mature Zero Trust model?
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Correct answer: B
The primary business driver for Zero Trust in modern enterprises is the failure of traditional perimeter security (like VPNs) to contain breaches. Once an attacker breaches the perimeter, they have implicit trust to move laterally. Zero Trust's 'assume breach' tenet addresses this by enforcing least privilege and continuous verification at the identity and data levels, directly mitigating the financial and reputational damage of lateral movement.
graph TD subgraph Traditional Perimeter VPN[VPN Gateway] -->|Implicit Trust| Internal[Internal Network] Attacker1[Attacker] -.->|Compromised Creds| VPN Internal -->|Lateral Movement| Data1[(Sensitive Data)] end subgraph Zero Trust Architecture Auth[Identity & Context Engine] -->|Explicit Trust| PEP[Policy Enforcement Point] Attacker2[Attacker] -.->|Compromised Creds| Auth Auth -.->|Access Denied| PEP PEP -->|Micro-segmented| Data2[(Sensitive Data)] end
