SERVICENOW-CIS-DISCOVERY Practice Test 14 — 15 Questions

Question 1

When using a MID Server with a custom Java version, which file must be updated to point to the new Java installation?

Accepted Answer

wrapper.conf. The wrapper.conf file is used to configure the Java environment for the MID Server process.

Answer

java.properties

Answer

agent.config

Answer

mid_server.properties

Question 2

What is the consequence of deleting a Discovery Schedule?

Accepted Answer

It prevents future automated runs of that schedule.. Deleting a Discovery Schedule removes the schedule record itself, so the scheduler no longer has anything to trigger — future automated runs of that schedule will not occur. However, the CIs and discovery history already collected remain in the CMDB; only the schedule definition is destroyed.

Answer

It breaks the MID Server.

Answer

It forces a full re-discovery.

Answer

It deletes all previously discovered CIs.

Question 3

Which THREE of the following are common parsing strategies used in pattern design?

Accepted Answer

Regex. Regex (A) is a common parsing strategy because regular expressions define character-level patterns that are matched against input text to extract or validate fields. JSON (C) is a common parsing strategy because its structured key-value and array syntax is parsed by dedicated JSON parsers to navigate and extract data reliably. Delimited text (E) is a common parsing strategy because records and fields separated by delimiters such as commas, tabs, or pipes are split and tokenized to obtain individual values. SQL Queries (B) are a data retrieval and manipulation language, not a parsing strategy for pattern design, and Java Class (D) is a programming construct or data model, not a parsing approach.

Answer

SQL Queries

Answer

Java Class

Question 4

When dealing with a nested XML response from an API, which parsing method should be used to drill down into a specific child node?

Accepted Answer

Parse XML with XPath. XPath is the standard query language for navigating XML documents and drilling into specific child nodes by path expression (e.g., /root/parent/child). ServiceNow's 'Parse XML with XPath' step is purpose-built for extracting values from nested XML API responses. It handles namespaces, attributes, and hierarchical traversal that flat parsers cannot.

Answer

Parse Delimited Text

Answer

Parse JSON

Answer

Parse Name-Value pair

Question 5

Which of the following best describes the purpose of 'CMDB Data Manager'?

Accepted Answer

To automate the lifecycle management of CIs.. CMDB Data Manager is a ServiceNow application that provides a centralized framework for automating the lifecycle management of Configuration Items (CIs). It allows administrators to define policies that govern how CIs are created, updated, archived, and deleted based on conditions such as staleness, lack of discovery updates, or business rules. This ensures the CMDB remains accurate and free of obsolete data without manual intervention.

Answer

To map IP addresses to subnets.

Answer

To manage MID server credentials.

Answer

To generate reports on CI count.

Question 6

When a Discovery pattern step fails due to a timeout, what is the best approach to fix it?

Accepted Answer

Increase the timeout value in the pattern step settings.. Timeouts often occur because the command is too slow. You can increase the timeout setting in the specific pattern step or optimize the command.

Answer

Change the Discovery schedule to run at night.

Answer

Delete the step.

Answer

Increase the MID server memory.

Question 7

When a discovery pattern finishes, it creates an 'Identification' payload. Where is this payload processed?

Accepted Answer

Identification and Reconciliation Engine (IRE). The payload is sent to the Identification and Reconciliation Engine (IRE) for processing against the CMDB.

Answer

Discovery Status table

Answer

MID Server

Answer

CMDB CI table

Question 8

What is the role of the 'ECC Queue' in Discovery?

Accepted Answer

To act as a message queue for commands and results between instance and MID Server.. The ECC Queue (External Communication Channel) is a key component in ServiceNow Discovery that acts as a message queue for commands and results between the ServiceNow instance and MID Servers. It facilitates asynchronous communication, where the instance queues commands for MID Servers to execute and MID Servers post results back.

Answer

To schedule Discovery scans.

Answer

To store the final CMDB data.

Answer

To provide credentials for discovery.

Question 9

What should you check to see if a MID Server has successfully completed a job?

Accepted Answer

The ECC Queue list. The ECC Queue list is the primary place to check whether a MID Server has successfully completed a job. The ECC Queue (External Communication Channel) records all inbound and outbound messages between the ServiceNow instance and MID Servers, including job status, payloads, and any errors. A completed job will show a corresponding ECC Queue record with a 'Processed' state and output payload.

Answer

The Discovery Dashboard

Answer

The MID Server log

Answer

The MID Server Properties

Question 10

When a discovery scan is running very slowly, which configuration adjustment might improve performance?

Accepted Answer

Increasing the number of concurrent tasks on the MID Server.. Discovery performance is often bottlenecked by the MID Server's worker pool — the number of concurrent probes it can execute. Increasing the 'Max concurrent tasks' (or equivalent concurrency setting) on the MID Server allows more probes to run in parallel, which can significantly speed up a slow scan, provided the MID Server has sufficient CPU, memory, and network bandwidth.

Answer

Adding more IP ranges to the schedule.

Answer

Deleting all existing CI records.

Answer

Changing the Discovery schedule to 'Weekly'.

Question 11

An administrator needs to restrict a Discovery Schedule to only scan specific IP addresses within a subnet during off-peak hours. Which configuration fulfills this requirement?

Accepted Answer

Create a Discovery Range in the Discovery Range Sets table and link it to the Discovery Schedule.. A Discovery Range Set is the correct mechanism to define specific IP ranges (or individual IPs) that Discovery should scan. By creating a Discovery Range within a Range Set and linking it to the Discovery Schedule, the administrator can restrict scanning to only the desired IP addresses. The schedule then uses this range set to determine which IPs to target, and off-peak hours are controlled via the schedule's run time.

Answer

Configure the 'Exclude IP' field directly on the Discovery Schedule record.

Answer

Use the Shazzam probe parameters in the behavior definition.

Answer

Modify the MID Server cluster properties to filter IP addresses.

Question 12

You are performing Discovery and notice that the 'Discovery Status' shows 'Success', but the CI record was not updated. What is the most likely cause?

Accepted Answer

The Identification rules are preventing the update.. The Discovery Status showing 'Success' indicates that the discovery phases (e.g., Shazzam, Classification, Identification) completed without errors. However, if the CI record was not updated, the most likely cause is that the Identification rules did not match the discovered data to an existing CI, or they matched but the update was blocked due to reconciliation rules. Identification rules determine whether a discovered item is a new CI or an existing one; if they fail to identify, the CI may not be updated or created.

Answer

The MID Server is down.

Answer

The credential had no access.

Answer

The Shazzam phase failed.

Question 13

What is the maximum number of times a Discovery Schedule can run?

Accepted Answer

Unlimited, based on system configuration.. Discovery schedules can be configured to run as often as required by the system capability.

Answer

100 times total.

Answer

Once per day.

Answer

Only once.

Question 14

When a MID Server is 'Validated', what actually happens?

Accepted Answer

The instance trusts the MID Server's public key. When a MID Server is 'Validated' in ServiceNow, the instance establishes trust by accepting the MID Server's public key, which is used to encrypt and authenticate communication between the MID Server and the instance. This validation step is what allows the MID Server to securely receive and execute commands from the instance. It does not reboot, change passwords, or update the MID Server software.

Answer

The MID Server is rebooted

Answer

The MID Server password is changed

Answer

The MID Server is updated

Question 15

When using the Identification and Reconciliation Engine (IRE), what happens if a payload contains a CI that matches multiple existing CIs based on the identification rule?

Accepted Answer

The payload is rejected with an error indicating an identification rule non-uniqueness.. If a payload contains a CI that matches multiple existing CIs based on the identification rule, the IRE rejects the payload with an error indicating an identification rule non-uniqueness. This prevents ambiguous updates and ensures data integrity by forcing the administrator to resolve the duplicate CIs or adjust the identification rule.

Answer

The match is ignored, and all attributes are updated in both records.

Answer

The first match found is updated.

Answer

A new CI is created as a duplicate.