SERVICENOW-CIS-DISCOVERY Practice Test 2 — 30 Questions

Question 1

Which of the following is NOT a phase of the Discovery process?

Accepted Answer

Verification. The four phases are Shazzam, Classification, Identification, and Exploration. 'Verification' is not one of them.

Answer

Identification

Answer

Shazzam

Answer

Exploration

Question 2

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.. Behaviors are collections of probes that dictate the scope of the discovery execution.

Answer

To define the IP address range.

Answer

To define the credential to be used.

Answer

To define which MID Server to use.

Question 3

You need to ensure that Discovery only scans specific ports for a particular set of Linux servers. Where should you configure this customized port list to override the default Shazzam probe settings?

Accepted Answer

In the Discovery Behavior record. Port Probes are defined within a Discovery Behavior, which allows you to specify a custom Port Probe record containing the specific ports to be scanned.

Answer

In the Discovery Schedule record

Answer

In the MID Server capability list

Answer

In the Discovery Range set

Question 4

A technician reports that Discovery is updating the 'Last discovered' field, but the 'Operational status' is not changing as expected. Where should you investigate the mapping of Discovery data to the CMDB?

Accepted Answer

Identification and Reconciliation Engine (IRE) Data Source Rules. The CMDB CI Class Models and the mapping configuration in the pattern or identification rule define how attributes are populated.

Answer

Discovery Log

Answer

CMDB Data Manager

Answer

Discovery Dashboard

Question 5

What is the purpose of the 'Identification' phase in Discovery?

Accepted Answer

To match the discovered CI to an existing one in the CMDB.. The Identification phase reconciles discovered data with existing CIs in the CMDB using defined Identification Rules.

Answer

To find the IP address of the device.

Answer

To determine what the device is.

Answer

To gather hardware details.

Question 6

What does 'Discovery' in ServiceNow primarily populate?

Accepted Answer

The CMDB.. Discovery is designed to populate the Configuration Management Database (CMDB).

Answer

The knowledge base.

Answer

The user database.

Answer

The incident table.

Question 7

When a MID server is part of a cluster, what happens if one node fails during a discovery scan?

Accepted Answer

The task is re-assigned to another available node in the cluster.. If configured, the cluster manages the failure and can distribute tasks to other nodes in the cluster.

Answer

The scan is marked as 'Partial'.

Answer

The scan restarts from the beginning.

Answer

The scan fails completely.

Question 8

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

Accepted Answer

The IP Service record.. You update the 'IP Service' record to include the new port.

Answer

The MID Server capabilities.

Answer

The Discovery Schedule.

Answer

The Discovery Classifier.

Question 9

Which THREE parsing methods are available in the 'Parse' step?

Accepted Answer

JSON. The Parse step supports several formats including JSON, XML, and Regex.

Answer

JavaScript

Answer

SQL

Question 10

What is the benefit of using an Extension section in a pattern?

Accepted Answer

To allow for modularity and reuse of logic.. Extension sections promote code reusability across multiple patterns.

Answer

To bypass the need for identification.

Answer

To increase the execution speed.

Answer

To automatically update CMDB schemas.

Question 11

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

Accepted Answer

To retrieve data from an existing CMDB record.. The 'Lookup' step is used to find existing records in the CMDB that aren't the primary CI of the pattern.

Answer

To create a new CI.

Answer

To delete a CI.

Answer

To identify the primary CI.

Question 12

If you are troubleshooting a Discovery issue where the device is correctly classified but no data is being populated in the CMDB, which phase should you investigate first?

Accepted Answer

Exploration. Exploration is the phase where probes run to gather attributes to populate the CMDB.

Answer

Shazzam

Answer

Schedule

Answer

Classification

Answer

Identification

Question 13

When a discovery probe fails due to a timeout, what is the best way to increase the timeout value for that specific probe?

Accepted Answer

Update the probe's timeout parameter.. The 'Ecc_queue_timeout' parameter can be adjusted on the specific probe or sensor configuration.

Answer

Increase the Shazzam port wait time.

Answer

Modify the Discovery Schedule.

Answer

Change the global MID Server timeout property.

Question 14

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.. Identification rules (specifically Reconciliation rules) might be preventing updates to the CMDB.

Answer

The MID Server is down.

Answer

The credential had no access.

Answer

The Shazzam phase failed.

Question 15

When a Discovery scan completes, how can you view the status of all individual IP addresses scanned by that schedule?

Accepted Answer

View the Discovery Status record.. The 'Discovery Status' record provides a detailed list of all devices scanned, including errors and results.

Answer

Look at the ECC Queue directly.

Answer

Check the CMDB list.

Answer

Check the MID Server logs.

Question 16

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 used for automating the lifecycle management of CIs, such as retiring or deleting them.

Answer

To map IP addresses to subnets.

Answer

To manage MID server credentials.

Answer

To generate reports on CI count.

Question 17

When the Identification and Reconciliation Engine (IRE) processes a payload, which THREE components determine if a CI is updated or created?

Accepted Answer

Data Source. The IRE relies on Identification Rules, Reconciliation Rules, and the payload content to make decisions.

Answer

MID Server configuration

Answer

Discovery Schedule

Question 18

You need to ensure that a specific attribute is NOT updated by any source except a manual update from a specific user group. How can this be done?

Accepted Answer

Set the Reconciliation rule for that attribute to only allow the 'Manual' data source.. Reconciliation rules allow you to specify data sources, but for non-Discovery sources, ACLs or Data Policies might be used; however, in terms of reconciliation, you can define a 'None' rule or manage it via source priority.

Answer

Change the class to 'Internal'.

Answer

Remove the attribute from the discovery pattern.

Answer

Create a business rule that runs after insert/update.

Question 19

What happens if a device is discovered that matches two different Classification records?

Accepted Answer

It uses the classifier with the highest priority.. Discovery uses priority values on classifiers to decide which one to apply when multiple match.

Answer

It errors out and stops discovery.

Answer

It asks the user to choose.

Answer

It applies both classifiers.

Question 20

During Discovery, a switch is identified, but its related interfaces are not appearing in the CMDB. What is the first thing you should check?

Accepted Answer

Identification Rule for the interface class. If the CI is identified but relationships are missing, the identification rule for the relationship (contained in the payload) is usually the cause.

Answer

MID Server capacity

Answer

Discovery Schedule timing

Answer

Discovery Error Log