SERVICENOW-CIS-DISCOVERY Mid Server Management Practice Test 5 — 15 Questions

Question 1

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 2

You need to troubleshoot why a specific WMI probe is failing. Which log should you check on the MID Server host?

Accepted Answer

The agent log. The agent log captures the execution of probes and any errors encountered during the process.

Answer

The MID Server configuration log

Answer

The System Event Log

Answer

The wrapper log

Question 3

A MID Server is failing to upgrade. What should you check first?

Accepted Answer

The upgrade log files on the MID Server host. When a MID Server upgrade fails, the first diagnostic step is to review the upgrade log files on the MID Server host itself. These logs (typically found under the agent's log directory, e.g., agent.log and wrapper.log) capture the exact failure point — whether it's a Java version mismatch, connectivity issue to the instance, or a failed file extraction. The MID Server record status in the instance only shows the current state (Up, Down, Upgrading) and won't reveal the underlying cause of the upgrade failure.

Answer

The Discovery Schedule

Answer

The System Property list

Answer

The MID Server record status

Question 4

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.

Answer

The MID Server is not validated

Answer

The MID Server is too old

Answer

The proxy is down

Question 5

What is the purpose of the 'MID Server Properties' module?

Accepted Answer

To manage global configuration properties for all MID Servers. This module allows you to define system-wide properties that influence all MID Servers.

Answer

To define individual server IP addresses

Answer

To store user passwords

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To list all discovery jobs

Question 6

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 7

How can you prevent a specific MID Server from being used for Discovery?

Accepted Answer

Remove the 'Discovery' capability from the MID Server record. Removing the 'Discovery' capability effectively prevents the MID Server from being assigned discovery jobs.

Answer

Delete the discovery schedule

Answer

Pause the MID Server

Answer

Change the MID Server status to 'Down'

Question 8

If a MID Server's memory usage is consistently high, what parameter should you tune?

Accepted Answer

The 'wrapper.java.maxmemory' setting in wrapper.conf. Increasing the Java heap size in the wrapper.conf file allows the MID server process more memory.

Answer

mid.thread.max

Answer

mid.poll.time

Answer

mid.cache.size

Question 9

Where can you view the 'Version' of the MID Server?

Accepted Answer

On the MID Server record. The MID Server record provides the current version of the software.

Answer

In the System Properties

Answer

In the ECC Queue

Answer

In the Discovery Schedule

Question 10

What is the primary benefit of using a MID Server?

Accepted Answer

It allows discovery behind firewalls. MID Servers allow for secure, firewalled data collection without exposing the instance directly to the internal network.

Answer

It replaces the need for a database

Answer

It increases the number of users

Answer

It makes discovery faster

Question 11

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 12

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

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The MID Server password is changed

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The MID Server is updated

Question 13

What happens to the MID Server service if the host machine reboots?

Accepted Answer

It will start automatically if configured as a system service. If the MID Server is configured as a system service (e.g., Windows Service or Linux daemon), it will automatically start when the host machine reboots. This is the recommended configuration for production environments to ensure continuous discovery and integration. The MID Server service is designed to be resilient and restart automatically if set up correctly.

Answer

It will stay down until manually started

Answer

It will be uninstalled

Answer

It will require a re-validation

Question 14

What is the purpose of the 'mid.snmp.port' parameter?

Accepted Answer

To set the default port for SNMP discovery. The 'mid.snmp.port' parameter sets the default UDP port that the MID Server uses for SNMP discovery, overriding the standard SNMP port of 161 when a non-default port is required. This allows discovery of SNMP-enabled devices that listen on a custom port. It is configured as a MID Server property and applies to SNMP probes and sensors during discovery.

Answer

To secure the connection

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To set the heartbeat port

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To configure the MID Server's web interface

Question 15

Which TWO pieces of information can be found in the MID Server record?

Accepted Answer

The host IP address. The MID Server record contains the status and the IP address of the host.

Answer

The full history of all scans

Answer

The user login credentials

Answer

A list of all discovered hardware