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An NFR requires 99.9% availability. Which design consideration is MOST directly relevant to achieving it?

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B
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2026 Statistics

Key Facts: ESDP Exam

75

Multiple-Choice Questions

Esri ESDP_2025 Exam Information Guide

90 min

Time Limit

Esri ESDP_2025 Exam Information Guide

4

Exam Sections

Esri ESDP_2025 Exam Information Guide

35%

Physical Architecture Weight

Esri ESDP_2025 Exam Information Guide

4+ yrs

Recommended Experience

Esri ESDP_2025 Exam Information Guide

Pearson VUE

Delivery Provider

Esri Technical Certification

ESDP_2025 is Esri's professional-level ArcGIS Enterprise System Design exam: 75 multiple-choice questions in 90 minutes, delivered in English through Pearson VUE. The blueprint has four sections led by Physical Architecture at 35%, followed by Solution Architecture (26%), Architectural Concepts (25%), and Deployment and Troubleshooting (14%). It targets experienced GIS architects and administrators.

Sample ESDP Practice Questions

Try these sample questions to test your ESDP exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In ArcGIS Enterprise system design, a non-functional requirement (NFR) is best described as a requirement that specifies:
A.Quality attributes such as performance, availability, scalability, and security that the system must meet
B.The list of web maps and dashboards to be published in the portal
C.The names of the staff who will administer the deployment
D.The specific GIS workflows and feature layers users must be able to edit
Explanation: Non-functional requirements define how the system must perform rather than what it does. In ArcGIS Enterprise design they include performance (response time, throughput), availability, scalability, security, and capacity targets, and they drive physical architecture decisions. Functional requirements, by contrast, describe specific user workflows and features.
2A base ArcGIS Enterprise deployment consists of which four core software components?
A.ArcGIS Server, a load balancer, a relational database, and ArcGIS Reader
B.Portal for ArcGIS, ArcGIS GIS Server (hosting server), ArcGIS Data Store, and ArcGIS Web Adaptor
C.ArcGIS Pro, ArcGIS Online, ArcGIS Server, and ArcGIS Monitor
D.Portal for ArcGIS, ArcGIS Image Server, ArcGIS Notebook Server, and ArcGIS Mission Server
Explanation: A base ArcGIS Enterprise deployment is composed of Portal for ArcGIS, an ArcGIS GIS Server site configured as the hosting server, ArcGIS Data Store (relational and tile cache), and two ArcGIS Web Adaptors (one for the portal and one for the hosting server). These four components together provide a complete Web GIS.
3Using the ArcGIS capacity-planning model, which formula correctly relates required CPU cores to service time (ST), throughput (TH), and maximum CPU utilization (%CPU)?
A.#CPU = TH / (ST x %CPU)
B.#CPU = (3600 x %CPU) / (ST x TH x 100)
C.#CPU = (ST x TH x 100) / (3600 x %CPU), adjusted by the SPECrate ratio
D.#CPU = ST x TH x %CPU x 3600
Explanation: The standard ArcGIS sizing formula is #CPU = (ST x TH x 100) / (3600 x %CPU), then multiplied by the ratio of the benchmark SPECrate per core to the target hardware SPECrate per core. ST is in seconds, TH is requests per hour, and %CPU is the maximum target utilization. This yields the number of cores needed to meet the throughput target.
4A map service has a measured service time of 0.5 seconds and must support a peak throughput of 36,000 requests per hour at a maximum 80% CPU utilization, on hardware with the same SPECrate as the benchmark. Approximately how many CPU cores are required?
A.About 10 cores
B.About 18 cores
C.About 36 cores
D.About 6 cores
Explanation: Apply #CPU = (ST x TH x 100) / (3600 x %CPU) = (0.5 x 36,000 x 100) / (3600 x 80) = 1,800,000 / 288,000 = 6.25, which rounds to about 6 cores when the SPECrate ratio is 1. This demonstrates how service time and throughput drive core counts.
5In a highly available ArcGIS Data Store relational store, what mechanism maintains continuity if the primary machine fails?
A.A built-in failover in which the standby machine is promoted to become the primary
B.Round-robin distribution of writes across three equal nodes
C.Automatic re-creation of the data store from the portal content directory
D.A manual export and re-import of the geodatabase by the administrator
Explanation: A highly available relational data store is composed of a primary and a standby machine. ArcGIS Data Store includes a built-in failover mechanism: if the primary fails, the standby is automatically promoted to primary, minimizing downtime without administrator intervention.
6When a third-party load balancer fronts a highly available portal tier, which configuration best ensures traffic is only sent to healthy machines?
A.Disable all health checks to reduce latency
B.Configure health checks that probe each back-end machine and route only to those passing
C.Pin every user session permanently to the first portal machine
D.Send all write requests to a standby relational store
Explanation: A load balancer fronting an HA deployment should be configured with health checks that periodically probe each back-end target. Traffic is balanced only among machines that pass the check, typically using a round-robin algorithm, so a failed machine is automatically removed from rotation.
7In an ArcGIS Enterprise deployment, what is the primary role of the ArcGIS Web Adaptor?
A.To act as the relational database for the geodatabase
B.To store published hosted feature layer data
C.To integrate the portal and server with an organization's web server and provide a friendly, port-free URL
D.To execute geoprocessing tools on a schedule
Explanation: The ArcGIS Web Adaptor integrates Portal for ArcGIS and ArcGIS Server with an existing enterprise web server (IIS, or a Java application server). It forwards requests to back-end machines, enables use of standard ports 80/443, and presents a clean, port-free URL. It can also distribute requests across multiple machines.
8A design team must size the network bandwidth for a service expected to handle 36,000 requests per hour where each request transfers about 1.25 Mb. Using Network bandwidth = TH x Mb-per-request / 3600, what bandwidth is required?
A.About 25 Mbps
B.About 45 Mbps
C.About 100 Mbps
D.About 12.5 Mbps
Explanation: Network bandwidth = (36,000 x 1.25) / 3600 = 45,000 / 3600 = 12.5 Mbps. Bandwidth sizing complements CPU sizing because even a well-sized server tier can be throttled by an undersized network link, so designers must account for per-request payload size.
9Which statement about Virtual Desktop Infrastructure (VDI) for ArcGIS Pro clients is most accurate when designing the system?
A.ArcGIS Pro benefits from a GPU in the VDI host, and CPU, RAM, and GPU must be sized per concurrent user
B.VDI is only supported for ArcGIS Online and never for Enterprise
C.Each VDI session requires its own dedicated physical workstation
D.VDI eliminates the need to size CPU, RAM, and GPU because rendering is free
Explanation: ArcGIS Pro is graphics-intensive, so VDI hosts should provide GPU acceleration, and CPU, RAM, and GPU resources must be sized for the number of concurrent Pro sessions. Proper VDI sizing prevents poor rendering and slow performance for remote analysts.
10An organization needs zero single points of failure in its base ArcGIS Enterprise deployment. Which design satisfies high availability for the portal tier?
A.A single portal machine with frequent backups
B.Two portal machines configured for HA, fronted by a load balancer with health checks
C.One portal machine and two web adaptors
D.A portal running on the same machine as the data store
Explanation: High availability for the portal tier requires at least two portal machines configured for HA so that one can serve requests if the other fails, fronted by a load balancer (or web adaptors) with health checks. Each tier of the base deployment must be made redundant to eliminate single points of failure.

About the ESDP Exam

The Esri ArcGIS Enterprise System Design Professional 2025 (ESDP_2025) exam validates the ability to design advanced enterprise GIS system architecture using best practices. It covers translating functional and nonfunctional requirements into solution and system design, capacity planning, high availability and disaster recovery, security architecture, deployment patterns, and troubleshooting, and targets GIS architects, administrators, managers, and consultants with about four years of applied ArcGIS Enterprise experience.

Assessment

75 multiple-choice questions distributed across 4 weighted sections: Physical Architecture (35%), Solution Architecture (26%), Architectural Concepts (25%), and Deployment and Troubleshooting (14%)

Time Limit

1 hour 30 minutes

Passing Score

Not publicly disclosed; Esri uses psychometric scaling against a defined competency standard

Exam Fee

Not published as a single fixed figure on the public exam description page; confirm with Esri or an authorized provider when registering. (Esri (delivered through Pearson VUE))

ESDP Exam Content Outline

35%

Physical Architecture

Documenting physical architecture against nonfunctional requirements, designing highly available deployments, identifying ArcGIS Enterprise URLs, calculating required server capacities from system design inputs, adjusting architecture to constraints, and selecting VDI configurations.

26%

Solution Architecture

Identifying the ArcGIS components and ArcGIS Server roles/extensions a design requires, selecting appropriate Data Store types, determining authentication methods from business needs, and adjusting the solution to meet constraints.

25%

Architectural Concepts

Determining when to use workload separation, designing for environment isolation, selecting collaboration types, identifying content delivery strategies, choosing backup/replication/resiliency methods, and deciding when to use tiered architectures.

14%

Deployment and Troubleshooting

Selecting an upgrade strategy, identifying potential system integration issues, interpreting results and data from tools, and determining which ArcGIS Monitor component to use.

How to Pass the ESDP Exam

What You Need to Know

  • Passing score: Not publicly disclosed; Esri uses psychometric scaling against a defined competency standard
  • Assessment: 75 multiple-choice questions distributed across 4 weighted sections: Physical Architecture (35%), Solution Architecture (26%), Architectural Concepts (25%), and Deployment and Troubleshooting (14%)
  • Time limit: 1 hour 30 minutes
  • Exam fee: Not published as a single fixed figure on the public exam description page; confirm with Esri or an authorized provider when registering.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

ESDP Study Tips from Top Performers

1Use Esri's ESDP_2025 Exam Information Guide and its four sections as your study checklist.
2Prioritize Physical Architecture because it carries the largest weight at 35% and includes capacity-planning math.
3Practice the CPU sizing logic where required cores scale with service time and throughput and inversely with allowed utilization.
4Be able to choose the right Data Store type, server role, and authentication method for a given scenario.
5Review high availability, disaster recovery (RTO/RPO), workload separation, collaboration, and upgrade strategies with realistic scenarios.

Frequently Asked Questions

How many questions are on the ESDP_2025 exam?

Esri's ArcGIS Enterprise System Design Professional 2025 exam has 75 multiple-choice questions distributed across four weighted sections.

How long is the ESDP_2025 exam?

The exam has a time limit of 1 hour and 30 minutes and is delivered in English through Pearson VUE.

What sections does the exam cover and how are they weighted?

Physical Architecture is 35%, Solution Architecture is 26%, Architectural Concepts is 25%, and Deployment and Troubleshooting is 14%, per Esri's Exam Information Guide.

What passing score is required?

Esri does not publicly disclose a fixed passing percentage. The standard is determined through psychometric scaling so candidates are measured against a defined competency level.

Who should take the ESDP_2025 exam?

It is designed for GIS architects, administrators, managers, and consultants with roughly four or more years of applied ArcGIS Enterprise system-design experience.

Which section is the most heavily weighted?

Physical Architecture is the largest section at 35%, covering capacity planning, high availability, ArcGIS Enterprise URLs, and VDI design.