SERVICENOW-CIS-DISCOVERY Practice Questions 1 — 50 Questions

Question 1

What is the primary way to check if a MID Server is communicating correctly with the ServiceNow instance?

Accepted Answer

Check the 'MID Server' list status.. The MID Server status on the 'MID Server' list view shows 'Up' if it is connected.

Answer

Check the Discovery log.

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Ping the MID Server from your computer.

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Check the CMDB.

Question 2

Where do you define the MID Server capabilities that allow it to perform specific tasks like Orchestration or Discovery?

Accepted Answer

In the MID Server record's 'Capabilities' related list.. MID Server Capabilities are managed via the 'Capabilities' related list on the MID Server record.

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In the 'Discovery Definition' module.

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In the 'MID Server Properties' module.

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In the config.xml file.

Question 3

What is the purpose of the 'Pre-sensor' script?

Accepted Answer

To perform custom logic before the payload is processed.. Pre-sensor scripts allow developers to manipulate data before it is processed by the identification engine.

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To stop a pattern from running.

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To reset the MID server cache.

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To run commands on the target device.

Question 4

Which of the following is a common symptom of a 'stale' CI?

Accepted Answer

The CI has not been updated by discovery within the expected timeframe.. A stale CI is one that has not been refreshed by the discovery source within the expected discovery/update window, meaning the CMDB record may no longer reflect the actual configuration. ServiceNow's CMDB Health 'staleness' KPI flags CIs whose 'last discovered' or 'updated' timestamp exceeds the configured threshold. This is the defining symptom of a stale CI.

Answer

The CI has a duplicate.

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The CI has too many relationships.

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The CI is missing required attributes.

Question 5

You are parsing a multi-line string containing key-value pairs separated by colons. Which tool is most appropriate for a single step extraction?

Accepted Answer

Parse Name-Value pair. The 'Parse Name-Value pair' step is designed to automatically extract multiple key-value pairs from a text block.

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Regex

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Parse Delimited

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XPath

Question 6

When using 'Parse JSON' for a complex structure, how do you access a nested property named 'id' inside an array 'servers'?

Accepted Answer

servers[0].id. To access a nested property named 'id' inside an array 'servers' when using 'Parse JSON', you use the syntax servers[0].id. This is standard JSONPath-like notation where the array name is followed by the index in brackets, then a dot and the property name. This correctly retrieves the 'id' value from the first element of the 'servers' array.

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servers->id

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servers.id

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id(servers)

Question 7

Which of the following correctly describes the use of the 'Pattern Designer's' 'Search' feature?

Accepted Answer

It allows locating specific steps or variables in the pattern.. The search feature allows you to find specific steps or configurations within a large, complex pattern.

Answer

It searches for available MID servers.

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It searches for CIs in the CMDB.

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It searches for patterns in the store.

Question 8

A MID Server is connected to the instance but 'Discovery' is not working. What is the most likely cause related to the MID Server configuration?

Accepted Answer

The MID Server lacks the 'Discovery' capability. The MID Server might not have the 'Discovery' capability assigned to it.

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The MID Server is not validated

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The MID Server is too old

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The proxy is down

Question 9

Which action should you perform before modifying a default Discovery Pattern?

Accepted Answer

Create a copy of the pattern.. Default Discovery Patterns are shipped as read-only records that are overwritten during ServiceNow upgrades, so any direct modification would be lost. The supported practice is to create a copy of the pattern, modify the copy, and then activate it so the customized logic is preserved across upgrades. This also allows the original to remain available as a fallback if the custom pattern fails.

Answer

Export the pattern to an XML file.

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Reboot the MID server.

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Delete the original pattern.

Question 10

If a MID Server's 'Service' is running but the MID Server is 'Down' in the instance, what should you inspect?

Accepted Answer

The network connectivity and agent.config settings. If the service is up but the record is down, there is likely a network communication block or a configuration mismatch in agent.config.

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The user's password in the instance

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The MID Server's local disk space

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The number of Discovery Schedules

Question 11

Which of the following is the correct order of operations in a horizontal pattern?

Accepted Answer

Identification, Connection, Extension. The standard flow is Identification, then Connection, then Extension sections.

Answer

Connection, Identification, Extension

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Identification, Extension, Connection

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Extension, Identification, Connection

Question 12

You need to add a new port to be scanned by Discovery. Which record do you update?

Accepted Answer

The IP Service record.. To add a new port to be scanned by Discovery, you update the IP Service record. IP Service records define the ports and protocols that Discovery uses during port scanning. Each IP Service record corresponds to a specific service (e.g., HTTP, SSH) and includes the port number and other attributes.

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The MID Server capabilities.

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The Discovery Schedule.

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The Discovery Classifier.

Question 13

When configuring a Discovery Behavior, what is the primary purpose of defining 'Probes' within the behavior?

Accepted Answer

To control which probes are launched for specific device types.. Probes within a Discovery Behavior define which probes are launched for specific device types. This allows customization of the discovery process for different classes of devices, ensuring appropriate probes are used.

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To define the IP address range.

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To define the credential to be used.

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To define which MID Server to use.

Question 14

What does 'Discovery' in ServiceNow primarily populate?

Accepted Answer

The CMDB.. Discovery in ServiceNow primarily populates the Configuration Management Database (CMDB) by discovering and updating configuration items (CIs) and their relationships. It scans the infrastructure, classifies devices, identifies existing CIs, and populates the CMDB with accurate data.

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The knowledge base.

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The user database.

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The incident table.

Question 15

During the Shazzam phase, Discovery identifies that a port is open. If the port corresponds to a configured classifier but no trigger probe is defined, what is the default behavior?

Accepted Answer

The classification phase initiates, but exploration cannot trigger.. During the Shazzam phase, if a port is open and matches a classifier but no trigger probe is defined, the classification phase will still run (to classify the CI based on the classifier), but exploration cannot be triggered because exploration relies on trigger probes to launch additional probes. Thus, the CI may be classified but not fully explored.

Answer

The CI is ignored, and the scan continues.

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Discovery automatically guesses the OS type.

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The scan for that IP is immediately aborted.

Question 16

You are configuring a Discovery CI identification rule for Linux servers and notice that multiple CIs are being created for the same physical device. Which component should you verify to ensure the Identification Engine correctly links the incoming data to an existing CI?

Accepted Answer

Identification Rule. The Identification Engine uses Identification Rules to compare attributes to determine if a CI exists. If these rules are misconfigured, duplicates occur.

Answer

Discovery Schedule

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Discovery Pattern

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Data Source

Question 17

A new device type is not being discovered correctly. Where should you look to ensure the classification process is prepared to handle it?

Accepted Answer

The Discovery Classifiers table.. The 'Discovery Classifiers' table contains the rules used to identify and classify devices.

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The Credential Alias list.

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The IP Range definitions.

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The MID Server configuration.

Question 18

An administrator wants to ensure that data imported from an external asset system does not overwrite data collected by Discovery. How should this be configured?

Accepted Answer

Configure Reconciliation Rules to grant Discovery higher priority for those attributes.. Reconciliation rules allow you to specify which data sources are authoritative for specific CI attributes.

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Change the CI class to read-only.

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Use an Import Set Transform Map script to check the source.

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Disable the external import integration.

Question 19

You want to exclude specific network devices from being created in the CMDB by Discovery. How do you implement this?

Accepted Answer

Add the devices to a Discovery Exclusion List. Discovery Exclusion lists prevent specific IP ranges or devices from being processed by Discovery.

Answer

Disable the Discovery Schedule

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Modify the MID Server capabilities

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Delete the CI from the CMDB after discovery

Question 20

A Discovery run is successfully finding CIs, but the 'CMDB Health Dashboard' shows 'Staleness' errors. What is the primary cause of staleness in the CMDB?

Accepted Answer

The CI has not been updated by a discovery source within the defined threshold.. Staleness occurs when a CI's 'Last discovered' date is older than the threshold defined in the CMDB Health configuration.

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The discovery credentials have expired.

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The CI record has duplicate attributes.

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The CI is not associated with any Discovery Schedule.