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ServiceNow Certified Implementation Specialist – Discovery (CIS-Discovery) practice questions

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Questions: 104
Exam length: 90 min
Updated: Jun 21, 2026

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Exam overview CIS-Discovery

Built for ITOM implementers, Discovery engineers, and CMDB architects, the ServiceNow Certified Implementation Specialist – Discovery (CIS-Discovery) credential certifies your ability to design, configure, and operate ServiceNow Discovery and the underlying CMDB on the Now Platform. Delivered through Kryterion Webassessor (with the option of online proctoring via Pearson VUE OnVUE or a physical testing center), the exam voucher costs $450 USD with $150 USD per retake, and no live simulator sandbox tasks or lab exercises appear during the proctored exam.

Before purchasing the voucher, candidates must hold the Certified Implementation Specialist – Data Foundations (CIS-DF) certification as a hard prerequisite — with a strict 2026 mandate: if you previously achieved CIS-Discovery without CIS-DF, you must clear it by December 31, 2026 or your downstream specialization credentials will automatically expire. Candidates must also complete CMDB Fundamentals and Discovery Fundamentals courses on Now Learning. ServiceNow recommends at least six months of continuous ITOM deployment experience, direct participation in at least two Discovery production projects, and intermediate competency in Unix and Windows server administration, SNMP query structure, JavaScript, and Regular Expression (Regex) parsing.

The CIS-Discovery blueprint is organized into four weighted domains, with the heaviest emphasis on Discovery Pattern Design (35%) and Discovery Configuration (35%), which together account for 70% of the score. The remaining weight splits across Configuration Management Database (15%) and Discovery Engagement Readiness (15%). With only 45 questions in 90 minutes — the tightest question pool among ServiceNow mainline exams — every multiple-select item carries extra weight, and the exam uses no partial credit. Scenario questions on the PCIE phases (Port scan, Classification, Identification, Exploration), ECC Queue statuses and discovery log tracking, the Pattern Designer Debugger with Match/Parse variable/Parse file operations and Regex compilation, and the IRE identification rules with CI Identifiers and Reconciliation Definitions are heavily tested.

For candidates preparing for the CIS-Discovery exam, our practice materials cover all four weighted domains in the same proportions as the real test — from Pattern Designer interface operations through Discovery Configuration with MID Server Clusters, CMDB and IRE reconciliation rules, and Engagement Readiness planning with MID Server sizing. Each online practice question includes a detailed answer explanation that walks through the reasoning behind PCIE phase transitions, ECC Queue log diagnostics, and IRE identification rule evaluation, while the downloadable PDF packages the same question bank for offline review during commutes or in environments without stable internet.

Official Exam Domains & Weighting

To successfully pass the CIS-Discovery exam, candidates must master the following core domains:

Domain 1: Discovery Pattern Design (35%)

Covers the Pattern Designer interface including running and utilizing the Debugger, creating Steps, and managing Identification and Connection Sections, pattern operations with Match, Parse variable, Parse file, and various parsing strategies, syntax rules for variable execution, attribute mapping, and Regular Expression (Regex) compilation, and Application Discovery troubleshooting with infrastructure dependency rules.

Domain 2: Discovery Configuration (35%)

Focuses on Discovery architecture including Behaviors, MID Server Clusters, IP Services, and Discovery Schedules, process flow mechanics across the PCIE phases (Port scan, Classification, Identification, Exploration) with ECC Queue statuses and discovery log tracking, and troubleshooting infrastructure including duplicate records, credential mapping errors, and discovery error resolution.

Domain 3: Configuration Management Database (CMDB) (15%)

Tests the CI Class Manager with CMDB Health Dashboard navigation, table inheritance, reclassification logic, and CMDB Relationships mapping, plus the Identification and Reconciliation Framework (IRE) including CI Identifiers, Reconciliation Definitions, Data Source Precedence configuration, and the CMDB De-duplication engine.

Domain 4: Discovery Engagement Readiness (15%)

Validates engagement planning with Management Instrumentation Dependency (MID) Server requirements, network specifications, and firewall exceptions, operationalizing IT with MID Server deployment and Discovery Dashboards for environment health verification, and Discovery Solutions defining business value boundaries and organizational positioning.

Domain coverage 4 domains

Discovery Pattern Design (35%)
Discovery Configuration (35%)
Configuration Management Database (CMDB) (15%)
Discovery Engagement Readiness (15%)

Sample questions 11 of 104 shown

Q1
Based on this image, which of the following statements are true? (Choose three.)
1. Attributes from two tables populate a table with the same name as a ServiceNow CMDB table.
2. This operation is more than likely a part of a step on a pattern set to Application Pattern Type.
3. If a value is unmatched, it is still merged into the Target Table.
4. For this operation to run, there must be some data in the process.executablePath variable.
5. This is a horizontal pattern of type "infrastructure."
The correct answer is ABD. these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q2
Which of the following are contained in an extension section of a discovery pattern?
1. Shared libraries
2. Connection sections
3. Identification sections
4. Network libraries
The correct answer is A. Shared libraries is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q3
Which of the below choices are possible options under ACTION ON ALL in the Recommended Actions pane for an Automated Error Messages list within Discovery > Home? (Choose two.)
1. Ping IP Addresses
2. Retry Discovery
3. View instructions
4. Make Ranges
The correct answer is BC. Retry Discovery and View instructions are correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q4
For a Parse Variable operation, when using the Delimited Text parsing strategy, which options are available in a step? (Choose two.)
1. Positions
2. Use SNMP Browser
3. Delimiters
4. Merge Criteria
The correct answer is AC. Positions and Delimiters are correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q5
How do you create relationships between CIs in a horizontal pattern?
1. Relationships are created automatically for each successful connection section.
2. By using the Create Connections operation.
3. By using the Create Relation/Reference operation.
4. Relationships cannot be created via patterns.
The correct answer is C. By using the Create Relation/Reference operation. is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q6
Which part of Agent Client Collector must be configured to run osquery commands on a CI?
1. ACC Websocket Endpoint
2. Credential-less Discovery
3. Check
4. Infrastructure Patterns
5. Policies
The correct answer is C. Check is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q7
What are three ways of extending Discovery?
1. Classifiers, Fingerprinting, Probes & Sensors
2. Flow Designer, Classifiers, Probes & Sensors
3. Classifiers, Probes & Sensors, Discovery Patterns
4. Fingerprinting, Classifiers, Discovery Pattern
The correct answer is C. Classifiers, Probes & Sensors, Discovery Patterns is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q8
Which operation is used to change from the default credentials to any other appropriate credentials in a horizontal pattern?
1. Change credentials
2. Change user
3. Alternate credentials
4. Alternate user
The correct answer is B. Change user is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q9
After navigating to an Automaton Error Messages list from Discovery > Home, how are the options on the right navigation pane categorized? (Choose two.)
1. SELECT ALL
2. SELECT ONE
3. ACTION ON SELECTED
4. ACTION ON ALL
The correct answer is CD. ACTION ON SELECTED and ACTION ON ALL are correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q10
Which of the following can be used in the Debug Identification Section in Debug Mode for an infrastructure pattern? (Choose two.)
1. IP
2. AWS Endpoint
3. PID
4. Host Name
The correct answer is AD. IP and Host Name are correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.
Q11
Based on the following images, which choice best describes what occurs if Discovery sets the name attribute of a discovered Windows Server CI to 'Windows1' and then Altiris discovery runs detecting 'Windows2' for the name attribute on the same CI?
1. The name of the CI stays 'Windows1'.
2. The name of the CI changes to 'Windows2'.
3. The name of the CI does not populate with either discovery.
4. The CI is not discovered because Discovery is not listed in either image.
The correct answer is A. The name of the CI stays 'Windows1'. is correct because these concepts relate to designing and troubleshooting Discovery patterns for IT infrastructure.

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Reader reviews 160 ratings

5.0 ★★★★★ Based on 160 ratings

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Frequently asked questions

What are the hardest conceptual topics emphasized on this exam?

The technical bottlenecks that most candidates struggle with occur inside Domain 1 (Pattern Design) and Domain 3 (IRE). You will be heavily tested on tracing how data transitions between the ECC Queue phases (PCIE) and how the Identification and Reconciliation Engine (IRE) determines if an incoming payload should update an existing CI or spawn a reclassification or duplication record based on identification rules. Knowing how to write Regex patterns to extract variables in the Pattern Designer debugger is critical.

What is the retake policy if I fail my attempt?

If your exam attempt is unsuccessful, you can purchase a retake voucher for $150 USD on Webassessor. You are allowed up to a maximum of 4 total attempts (the initial try plus 3 retake attempts). If you fail all 4 attempts, the voucher sequence will freeze, and you will be blocked from registering until you re-enroll in and complete the core Discovery Fundamentals training pathway again.

How does the "Conditional Result" rule affect my final certification outcome?

When you finish and submit your exam, your results are calculated dynamically and immediately shown on-screen as a Pass or Fail. However, ServiceNow formally classifies all initial results as Conditional, which allows the ServiceNow Certification Security Team to run background forensic audits on test data. If any test anomalies or violations of the ServiceNow Test Security Policies are discovered post-exam, the results can be updated and the certification may be revoked.

What is the CIS-DF 2026 mandate specifically for CIS-Discovery?

ServiceNow strictly requires candidates to hold the Certified Implementation Specialist – Data Foundations (CIS-DF) certification. If you previously achieved the CIS-Discovery certification without CIS-DF, you must clear the CIS-DF exam by December 31, 2026, or your downstream specialization credentials will automatically expire. This is a hard prerequisite, not a recommendation — treat your CIS-DF study as the first step in your Discovery preparation.

How do the practice PCIE and IRE scenarios compare to real CIS-Discovery exam questions?

The mock exam scenarios target the same Discovery mechanics the real exam tests — tracing PCIE phase transitions (Port scan → Classification → Identification → Exploration), reading ECC Queue statuses and discovery log entries, using the Pattern Designer Debugger with Match, Parse variable, and Parse file operations, and applying IRE identification rules to determine whether a payload updates a CI, creates a reclassification, or spawns a duplicate record. Each scenario presents a Discovery configuration, asks which phase or rule outcome applies, and walks through the logic step by step in the answer explanation.

When should I use the PDF download to study PCIE phases and the Pattern Designer offline?

The PDF download is most useful when you want to trace the full PCIE phase flow offline — from Port scan through Classification, Identification, and Exploration — while studying the Pattern Designer workspace with its Match, Parse variable, Parse file operations and Regex syntax rules side by side. The mock exam scenarios cover the same PCIE transitions and Pattern Designer operations in interactive format for timed practice, while the PDF lets you study the ECC Queue phase diagram and Pattern Designer interface details on paper during commutes or in environments without stable internet.

What prerequisites do I need to meet before registering for the CIS-Discovery exam?

You must hold the Certified Implementation Specialist – Data Foundations (CIS-DF) certification (strict 2026 mandate), complete the Welcome to ServiceNow and ServiceNow Administration Fundamentals (SNAF) (or hold the CSA credential), Get Started with the Now Create Methodology and ServiceNow Platform Implementation, and the CMDB Fundamentals and Discovery Fundamentals courses on Now Learning. ServiceNow also recommends at least six months of continuous ITOM deployment experience, direct participation in at least two Discovery production deployments, and intermediate competency in Unix and Windows server administration, SNMP query structure, JavaScript syntax, and Regular Expression (Regex) parsing.