SERVICENOW-CIS-DISCOVERY Practice Test 16 — 15 Questions

Question 1

A discovery administrator is troubleshooting a Linux server that is not being discovered despite correct credentials and network connectivity. The administrator runs a horizontal discovery and notices that the 'SSH' probe fails with a 'Command not found' error. Which step should the administrator take to resolve this?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Verify that the necessary utilities (e.g., 'dmidecode', 'lspci') are installed on the target server.. The 'Command not found' error during an SSH probe indicates that a command executed by the discovery pattern is not available on the target Linux server. Common culprits are utilities like 'dmidecode' or 'lspci' that may not be installed by default on minimal installations. Installing these utilities enables the pattern to complete successfully and gather the required data.

Answer

Update the Linux credentials to use a privileged user account.

Answer

Increase the SSH timeout value in the MID Server properties.

Answer

Modify the Discovery Schedule to include the server's IP address in the 'Discover' field.

Question 2

Which THREE of the following are true about the Identification phase?

Accepted Answer

It helps prevent duplicate CIs. It uses identification rules, ensures CMDB uniqueness, and prevents duplicate CIs.

Answer

It runs patterns to get serial numbers

Answer

It updates device software attributes

Question 3

You are creating a custom pattern to identify a new type of load balancer. You need to verify that the identification section correctly maps the serial number to the cmdb_ci_lb_device table. Which debugging tool within the Pattern Designer should you use to validate the identification section without running a full Discovery schedule?

Accepted Answer

Pattern Debugger. The Pattern Debugger in Pattern Designer lets you run a pattern against a specific input (such as a saved probe result or a manually supplied payload) and step through each section — Identification, Exploration, and Parsing — showing exactly which step produced which output. This validates the identification section's serial-number mapping to cmdb_ci_lb_device without needing to execute a full Discovery schedule. It is the purpose-built debugging tool for pattern development.

Answer

Identification Reconciliation Engine (IRE) Log

Answer

ECC Queue Monitor

Answer

Discovery Log

Question 4

What is the primary function of a MID Server in the ServiceNow environment?

Accepted Answer

To facilitate communication between the instance and the internal network.. The MID Server acts as a bridge between the ServiceNow instance and the internal network/devices.

Answer

To manage user authentication.

Answer

To host the ServiceNow application code.

Answer

To store the entire CMDB database.

Question 5

Which TWO of the following are common issues that cause the Identification and Reconciliation Engine (IRE) to generate an error?

Accepted Answer

The data source does not have write authority for the CI attributes.. IRE failures often relate to data source authority or non-unique identifier matches.

Answer

The network latency is too high.

Answer

The MID server is offline.

Answer

The CI class is too complex.

Question 6

What happens to the data extracted by a pattern if it is not mapped to an attribute?

Accepted Answer

It is discarded.. If data extracted by a pattern is not mapped to an attribute, it is discarded. ServiceNow Discovery only retains data that is explicitly mapped to a CI attribute or used in a step; unmapped data is not stored.

Answer

It is kept as a temporary CI.

Answer

It is stored in the error table.

Answer

It is saved in the discovery log.

Question 7

What is the purpose of the 'Classification' phase?

Accepted Answer

To identify the O/S or device type.. Classification determines what the device is (e.g., Windows Server, Router) based on probe responses.

Answer

To run reconciliation rules.

Answer

To scan for open ports.

Answer

To update the CMDB attributes.

Question 8

A MID Server has been installed on a Windows host, but it is not appearing in the 'MID Servers' list in the ServiceNow instance. What is the first place you should check to identify the cause?

Accepted Answer

The agent log file located in the agent/logs directory on the host. When a MID Server is installed but does not appear in the instance's MID Servers list, the first diagnostic step is to check the agent log file in the agent/logs directory on the host. The log will show startup errors, connection failures, or authentication issues that prevent the MID from registering with the instance.

Answer

The 'ECC Queue' table

Answer

The 'MID Server Issues' related list on the Discovery Dashboard

Answer

The 'Credential Store' module

Question 9

You want to force a MID Server to restart its service. Where can you do this?

Accepted Answer

From the MID Server record using the 'Restart' UI Action. You can restart the MID Server service from the MID Server record using the 'Restart' UI Action.

Answer

From the System Log

Answer

From the Discovery Schedule

Answer

By deleting the MID Server record

Question 10

When should you use the 'Lookup' step in a pattern?

Accepted Answer

To retrieve data from an existing CMDB record.. The 'Lookup' step in a pattern is used to retrieve data from an existing CMDB record. It allows you to query the CMDB for a CI based on certain criteria and then use the returned data in subsequent steps. This is useful for correlating discovered data with existing records or for populating related fields.

Answer

To create a new CI.

Answer

To delete a CI.

Answer

To identify the primary CI.

Question 11

Which TWO of the following are components of the Discovery process?

Accepted Answer

Shazzam. In ServiceNow Discovery, the two components of the Discovery process are Shazzam (option A) and Exploration (option D). Shazzam is the port-scanning phase that probes IP ranges for responsive ports and identifies the likely device classification, while Exploration is the phase that uses probes and sensors (via MID Server) to gather detailed configuration data such as OS, applications, and serial numbers. Together they form the core Discovery pipeline: Shazzam finds the devices, and Exploration interrogates them. Incident Management (option B) is an ITIL process for restoring service, not a Discovery component. Workflow Designer (option C) is a graphical tool for building workflows, unrelated to Discovery phases. Service Mapping (option E) is a separate, complementary ServiceNow capability that builds service topologies from discovered CIs, but it is not itself a component of the Discovery process.

Answer

Incident Management

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Workflow Designer

Answer

Service Mapping

Question 12

Which of these is a valid way to organize discovery when dealing with a very large network?

Accepted Answer

Use multiple schedules and MID servers to segment the workload.. For very large networks, a single schedule or MID server becomes a bottleneck. Using multiple schedules and MID servers distributes the discovery workload, enabling parallel processing and horizontal scaling. This segmentation also isolates failures and allows tuning for different network segments.

Answer

Disable the identification phase.

Answer

Use a single schedule for everything.

Answer

Run everything at once.

Question 13

When configuring a 'Set Parameter' step, where is the value retrieved from if you select 'Variable'?

Accepted Answer

From a memory variable created earlier in the pattern.. A 'Variable' parameter type retrieves its value from a previously defined variable in the pattern session.

Answer

From the MID server configuration.

Answer

From the CMDB table.

Answer

From a system property.

Question 14

Which TWO factors are used to configure a MID Server Cluster?

Accepted Answer

Member MID Servers. In ServiceNow, a MID Server Cluster is configured by defining two things: the Member MID Servers (option C), which are the individual MID Server records that are added to the cluster and that must all be up and validated, and the Cluster behavior (option D), which determines how the cluster load-balances and fails over jobs among its members (for example, using the cluster's load-balancing and failover capabilities). These two factors are the essential configuration elements of a MID Server Cluster record. Proxy settings (option A) are configured on individual MID Server records or via MID Server properties, not as a cluster-defining factor. Network firewall ports (option B) are an infrastructure prerequisite for MID Server connectivity but are not a cluster configuration parameter. Discovery Schedule (option E) is a separate Discovery configuration item that determines what and when to discover, and it is not used to configure a MID Server Cluster.

Answer

Proxy settings

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Network firewall ports

Answer

Discovery Schedule

Question 15

When a pattern step uses a 'Query' to the target, what is the 'Temporary Variable' used for?

Accepted Answer

To store the output of the step for use in subsequent steps.. In a pattern step, the Temporary Variable stores the output of that step so subsequent steps can reference it — for example, a Query step's result set is held in a temporary variable that later steps parse or iterate over. It is the mechanism for passing data forward within a pattern execution.

Answer

To act as a filter for the result set.

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To increase the speed of the scan.

Answer

To define the credentials for the query.