SERVICENOW-CIS-DISCOVERY Discovery Configuration Practice Test 2 — 15 Questions

Question 1

How does Discovery handle the identification of a device that has had its IP address changed since the last discovery?

Accepted Answer

It uses Identification Rules to match the device based on hardware attributes.. Discovery uses Identification rules based on unique hardware attributes (like serial numbers) to reconcile the CI, regardless of IP changes.

Answer

It deletes the old CI and creates a new one.

Answer

It requires a manual merge in the CI list.

Answer

It fails because the IP address does not match.

Question 2

When configuring an IP Range for a Discovery Schedule, what format must be used for a block of IPs?

Accepted Answer

CIDR notation or start and end IP addresses.. Discovery supports CIDR notation (e.g., 10.10.10.0/24) or range start/end formats.

Answer

Wildcard characters like 10.10.*.*.

Answer

Subnet mask in decimal format.

Answer

A list of individual IP addresses separated by commas.

Question 3

A Discovery Schedule is configured but not running. Where is the first place you should look for errors?

Accepted Answer

Discovery Log. The Discovery Log and the ECC Queue are the primary sources for troubleshooting discovery issues.

Answer

System Logs

Answer

MID Server Logs

Answer

CMDB Health Dashboard

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 record type stores the credentials used by Discovery to log into target devices?

Accepted Answer

Credential record. Credentials are stored in the 'Discovery Credentials' table and referenced via Aliases.

Answer

MID Server record

Answer

Discovery Behavior

Answer

Discovery Schedule

Question 6

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 7

During discovery, a device is identified as 'Linux'. Which component is responsible for triggering the specific pattern to gather Linux-specific data?

Accepted Answer

The Discovery Pattern.. Discovery triggers a pattern based on the classification result, which matches the Linux classifier.

Answer

The CMDB Identification rule.

Answer

The Shazzam probe.

Answer

The Classification probe.

Question 8

Why would you choose to use a 'Discovery Behavior' instead of the default behavior?

Accepted Answer

To limit or extend the probes used for specific discovery scenarios.. Custom behaviors are used when you need to run a specific, non-default set of probes or patterns for a target.

Answer

To update the CMDB identification rules.

Answer

To define the IP range for the discovery.

Answer

To change the schedule of the discovery.

Question 9

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 10

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 is the communication buffer between the ServiceNow instance and the MID Server.

Answer

To schedule Discovery scans.

Answer

To store the final CMDB data.

Answer

To provide credentials for discovery.

Question 11

If a MID Server is 'Down', what happens to Discovery schedules assigned to it?

Accepted Answer

The discovery job will fail or not execute.. Discovery will not run if the assigned MID server is offline, as there is no path to the target network.

Answer

The discovery remains in a 'Ready' state.

Answer

The schedule automatically switches to another MID.

Answer

The schedule runs on the next available MID Server.

Question 12

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 13

How do you associate a specific MID Server with a Discovery Schedule?

Accepted Answer

By selecting it in the 'MID Server' field on the Discovery Schedule.. The MID Server is selected on the Discovery Schedule record directly.

Answer

Through a Discovery Behavior.

Answer

Via a credential alias.

Answer

By modifying the IP Range.

Question 14

Which of the following would be the best reason to create a custom Discovery Behavior?

Accepted Answer

To control which probes are run for a specific type of device.. Custom behaviors are often used to exclude specific, resource-intensive patterns or include only relevant probes for specialized equipment.

Answer

To define the IP range for a subnet.

Answer

To manage MID Server credentials.

Answer

To schedule discovery at a different time.

Question 15

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.