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CIS-Discovery / RISCO - ServiceNow DISCO Certification Practice Test Bestseller
DISCO

CIS-Discovery / RISCO - ServiceNow Practice Test 2026

Discovery questions get missed when people memorize definitions instead of workflows. This 173-question bank stays on MID Servers, credentials, patterns, classification, and RISCO behavior. Each answer links back to official ServiceNow docs so you can check the logic yourself.

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Before you start: CIS-DF is a prerequisite for this exam from Jan 1, 2027. See the CIS-DF practice test.

Next step: CIS Service Mapping.

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1.Duplicated CIs have been detected during Identification and Reconciliation phase. In such a case the default action would be to ______ .
  • Aadd each set of duplicate CIs to a de-duplication task
  • Bsend a notification to the CI owner
  • Cautomatically create an associated identification rule
  • Dstop the next discovery for the CI that is duplicated
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Correct Answer

A. Add each set of duplicate CIs to a de-duplication task

Source

ServiceNow Zurich - CMDB Identification and Reconciliation

If the link fails, search Google for: ServiceNow Zurich CMDB Identification Reconciliation de-duplication task

Expert Explanation

The Identification and Reconciliation Engine (IRE) is the gatekeeper of CMDB data quality. When it detects that two or more CIs share the same identifier values (based on configured CI Identifier rules), it flags them as potential duplicates. Rather than automatically merging or deleting records - which could destroy valid data - the engine creates a de-duplication task.

These tasks are visible in the CMDB Health Dashboard under the duplicates section. An administrator then reviews each set of duplicates and decides whether to:

  • Merge the CIs into a single authoritative record
  • Reject the duplicate flag if the CIs are legitimately separate items
  • Re-classify a CI if it was incorrectly typed

This human-in-the-loop approach prevents automated data loss while still surfacing quality issues promptly.

Why the Others Are Wrong
  • B - Send notification to CI owner: There is no default notification mechanism for duplicate detection. De-duplication tasks are the standard workflow, not email alerts.
  • C - Automatically create an identification rule: Identification rules are administrative configurations created before discovery runs. The IRE uses existing rules to detect duplicates - it cannot author new rules on its own.
  • D - Stop the next discovery: Stopping discovery for a single CI would leave it stale and unmonitored. ServiceNow never pauses discovery as a response to duplicates - it isolates the problem into a reviewable task instead.
Memory Tip

Think of it like airport security finding two identical passports: they do not destroy one or stop all flights. They create a task (incident report) and let an officer (admin) sort it out. Duplicates = De-dup Task.

Real-World Example

A network engineer at Contoso Corp runs a discovery scan that finds two CIs for the same Linux server - one created by an earlier IP-based scan and another from a DNS-based scan. The IRE detects the overlap using the serial number identifier rule and creates a de-duplication task. The CMDB manager reviews the task, confirms both records represent server PRODWEB-04, and merges them into a single CI - preserving all 47 relationships from both records.

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Common questions

How many questions are in the full DISCO practice test?

The full course has 173 questions on Udemy. Every answer option has its own explanation, and the explanations link to official ServiceNow documentation.

Is there a refund if the course is not right for me?

Yes. Udemy courses come with a 30-day money-back guarantee.

Will this practice test guarantee I pass?

No. Practice tests show you where you are weak. They do not replace hands-on work, so pair them with a free ServiceNow Personal Developer Instance.

How much does the real DISCO exam cost?

The exam costs $450 for a first attempt and $225 for a retake. Fees can change, so check ServiceNow University before you register.

Do I need CIS-DF before DISCO?

Yes. From January 1, 2027 you cannot register for this exam without CIS-DF. If you already hold this certification, you must pass CIS-DF by December 31, 2026. See the CIS-DF practice test.

Which certification should I take first?

Most people start with CSA. If you are unsure, take the 2-minute recommendation quiz or read the certification path guide.

Read the full DISCO study guide for domain weights, a study plan, and common mistakes.

Next step after DISCO: CIS Service Mapping. Not the right exam? Take the 2-minute quiz or compare all 18.

Browse all 18 practice tests →

Not sure which cert? See the full certification guide →