Discovery Fundamentals Overview

Question 1

How many steps are there to each phase in Discovery?

Answer 1

Five

Question 2

What is a lightweight Java process running under a Linux or Windows platform that resides within enterprise networks?

Answer 2

MID Server

Question 2

What interrogates the enterprise network for recognizable devices and applications they host?

Answer 2

Discovery

Question 3

What protocol does the MID server use to communicate with ServiceNow?

Answer 3

HTTPS

Question 4

What port does the MID server use to communicate with ServiceNow?

Answer 4

443

Question 5

Which step in the Discovery process is this?

Discovery work is initiated by placing instructions in the form of output probes on the External Communications Channel (ECC)

Answer 5

Step 1

Question 6

Which step in the Discovery process is this?

A worker job on the MID Server regularly polls the ServiceNow platform for work placed on the ECC queue

Answer 6

Step 2

Question 7

Which step in the Discovery process is this?

Depending upon the type of probe (Port Scan/Classification/Identification/Exploration) the MID Server then interrogates the enterprise infrastructure (single devices, entire networks, a range of subnets or cloud services) to gather information about the discovery target

Answer 7

Step 3

Question 8

Which step in the Discovery process is this?

Responses from the discovery targets are returned to the ECC Queue in the form of input probes, an XML payload containing information

Answer 8

Step 4

Question 9

Which step in the Discovery process is this?

Sensors (or discovery patterns) decipher the XML payload and determine what course to take.

Answer 9

Step 5

Question 10

The monitor checks for entries in the ECC queue with a value of ___________ and a state of _____________.

Answer 10

output, Ready

Question 11

What are the different Discovery phases?

Answer 11

Scanning
Classification
Identification
Exploration

Question 12

In what Discovery phase is a single Shazzam probe launched, scanning for open TCP on network-connectable nodes?

Answer 12

Scanning Phase

Question 13

In what Discovery phase do classify sensors process data returned from classify probes (one per device), comparing against criteria for each class of device, attempting to classify the device specifically?

Answer 13

Classification

Question 14

In what phase of Discovery would it be distinguished is a Windows platform is Windows 2003, Windows 2008, Windows 2012, etc.?

Answer 14

Classification

Question 15

In what Discovery phase are patterns launched via the Horizontal Discovery Probe and, using CI Identifiers, an attempt is made to match information against CMDB records?

Answer 15

Identification

Question 16

In what Discovery phase do patterns gather more information to populate CI attributes accordingly, both hardware and software characteristics?

Answer 16

Exploration

Question 17

During what Discovery phase can Discovery also update the CMDB with details of installed software?

Answer 17

Exploration

Question 18

During what Discovery phase can Discovery determine running processes?

Answer 18

Exploration

Question 19

What determine and track running processes by launching additional process probes to create child configuration items with “Runs on::Runs” relationship with their host?

Answer 19

Process Classifiers

Question 20

What does Service Mapping require?

Answer 20

1. Entry Point (e.g. URL used to access service)
2. Credentials for the supporting hosts of the applications

Question 21

What dashboard displays port scanning data, IP address usage, and Discovery schedules. Key indicators include Total, Alive, Active, Non-reachable IP addresses, and open ports?

Answer 21

Shazzam Insights dashboard

Question 22

Where can a user find a summary of discoveries that were triggered from Configuration Item schedules during the last 30 days, including errors that might have occurred?

Answer 22

Discovery Home page

Question 23

What determine the probes that Shazzam launches, and from which MID Servers these probes are launched?

Answer 23

Behaviors

Question 24

What determines the frequency Discovery executes and what target devices and/or subnet(s) are to be discovered?

Answer 24

Discovery schedules

Question 25

What allows Discovery to create a particular CI type such as as an application from information gathered during the identification and exploration phases?

Answer 25

Process Classifiers

Question 26

When installing a MID Server on Windows using the native Windows installer (MSI), which of the following policies must be added to the service account needed to complete the installation? a) Allow log on locally b) Log on as service c) Allow log on through Remote Desktop Services d) Access this computer from the network e) Allow MID Server user account web services right

Answer 26

b) Log on as service

Question 27

The MID Server user used as past of the installation must have which of the following ServiceNow roles? a) mid_server b) admin c) web_service_admin d) ecc_queue_reader e) workflow_admin

Answer 27

a) mid_server

Question 28

What is a MID Server?

Answer 28

A Java application that runs as a Windows service or UNIX daemon on a server in a customer's network.