Discovery Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
What are the 5 steps in Discovery? - CORRECT ANSWER✔✔- 1) ServiceNow puts output
instructions on the ECC queue
2) A regular job runs on the MID server polling the ServiceNow instance
3) Depending on the type of probe, the MID Server begins interrogating the network
4) Responses are logged in the ECC queue as inputs
5) Discovery patterns decipher what course of action to take with the payload
What is the MID Server monitor checking for when polling SNOW? - CORRECT
ANSWER✔✔- Checking ECC queue entries with a value of Output and status of Ready
What are the 4 discovery phases? - CORRECT ANSWER✔✔- 1) Port Scan Phase
2) Classification
3) Identification
4) Exploration
What happens during Port Scan phase? - CORRECT ANSWER✔✔- It's a Shazzam probe
that scans for all active services, essentially saying "Are you out there?"
What happens during the Classification Phase? - CORRECT ANSWER✔✔- Determines the
device type and how to classify it
What happens during the Identification Phase? - CORRECT ANSWER✔✔- Determines the
CI's existence and if it has ever seen it before
What happens during the exploration phase? - CORRECT ANSWER✔✔- Explores the CI
device for more information about itself
What does the dependency view show? - CORRECT ANSWER✔✔- Shows how to CI are
related. If one CI "runs on" another or "depends on" another
,What's the difference between Service Mapping and Discovery? - CORRECT ANSWER✔✔-
Discovery runs horizontally looking for all CIs in an IP range, while Service Mapping is
vertical interrogating CIs related to each other to define a business service
What's the primary purpose of the MID server? - CORRECT ANSWER✔✔- To facilitate
communication and movement of data between the ServiceNow platform and external
application behind the enterprise firewall
What is a MID server? - CORRECT ANSWER✔✔- A lightweight Java process that runs on a
Windows or Linux server
What are probes? - CORRECT ANSWER✔✔- Probes are what is launched by the MID
server to gather information and bring it back
What are the 5 steps to installing a MID Server? - CORRECT ANSWER✔✔- 1) Download
the MID server and JRE packages
2) Extract files and install JRE
3) Run MID installer
4) Validate MID
5) Update services Credentials
What should you keep in mind when installing multiple MID servers on the same Server? -
CORRECT ANSWER✔✔- The Wrapper name and Wrapper display name must be unique to
the MID server
Where can you validate that a MID server is up and running? - CORRECT ANSWER✔✔-
Under the MID servers module, you can view the connectivity of the MID servers to the
ServiceNow instance
How does the instance validate that a MID server is up and running? - CORRECT
ANSWER✔✔- The instance will put out a Heartbeat probe every 5 minutes, which the MID
server will read just like any other probe. If if responds back then it will mark it as up, if not
then it will mark it as down
, How often does the MID server check if the instance needs to be upgraded? - CORRECT
ANSWER✔✔- Every hour
When will changes to MID server parameters take effect? - CORRECT ANSWER✔✔- Only
when a MID server starts or restarts
What does ECC queue stand for? - CORRECT ANSWER✔✔- Electronic Communication
Channel Queue
How much does the MID server compress data when uploading to the SNOW input ECC? -
CORRECT ANSWER✔✔- MID servers compress data 10 to 1 when uploading to the input
ECC queue
What are the 3 states of an ECC queue record? - CORRECT ANSWER✔✔- Ready
Processing
Processed
How many instances can a MID server communicate with? - CORRECT ANSWER✔✔-
Only 1 at a time
How would you reconfigure a MID server to a new instance? - CORRECT ANSWER✔✔-
Rerun the MID server installer and input new URL and credentials
What fields are required when setting up a discovery job? - CORRECT ANSWER✔✔- Name
Discover
MID Server
IP Ranges
What are the related lists of a Discovery Schedule? - CORRECT ANSWER✔✔- Discovery
Log
Devices
Exam Questions and CORRECT Answers
What are the 5 steps in Discovery? - CORRECT ANSWER✔✔- 1) ServiceNow puts output
instructions on the ECC queue
2) A regular job runs on the MID server polling the ServiceNow instance
3) Depending on the type of probe, the MID Server begins interrogating the network
4) Responses are logged in the ECC queue as inputs
5) Discovery patterns decipher what course of action to take with the payload
What is the MID Server monitor checking for when polling SNOW? - CORRECT
ANSWER✔✔- Checking ECC queue entries with a value of Output and status of Ready
What are the 4 discovery phases? - CORRECT ANSWER✔✔- 1) Port Scan Phase
2) Classification
3) Identification
4) Exploration
What happens during Port Scan phase? - CORRECT ANSWER✔✔- It's a Shazzam probe
that scans for all active services, essentially saying "Are you out there?"
What happens during the Classification Phase? - CORRECT ANSWER✔✔- Determines the
device type and how to classify it
What happens during the Identification Phase? - CORRECT ANSWER✔✔- Determines the
CI's existence and if it has ever seen it before
What happens during the exploration phase? - CORRECT ANSWER✔✔- Explores the CI
device for more information about itself
What does the dependency view show? - CORRECT ANSWER✔✔- Shows how to CI are
related. If one CI "runs on" another or "depends on" another
,What's the difference between Service Mapping and Discovery? - CORRECT ANSWER✔✔-
Discovery runs horizontally looking for all CIs in an IP range, while Service Mapping is
vertical interrogating CIs related to each other to define a business service
What's the primary purpose of the MID server? - CORRECT ANSWER✔✔- To facilitate
communication and movement of data between the ServiceNow platform and external
application behind the enterprise firewall
What is a MID server? - CORRECT ANSWER✔✔- A lightweight Java process that runs on a
Windows or Linux server
What are probes? - CORRECT ANSWER✔✔- Probes are what is launched by the MID
server to gather information and bring it back
What are the 5 steps to installing a MID Server? - CORRECT ANSWER✔✔- 1) Download
the MID server and JRE packages
2) Extract files and install JRE
3) Run MID installer
4) Validate MID
5) Update services Credentials
What should you keep in mind when installing multiple MID servers on the same Server? -
CORRECT ANSWER✔✔- The Wrapper name and Wrapper display name must be unique to
the MID server
Where can you validate that a MID server is up and running? - CORRECT ANSWER✔✔-
Under the MID servers module, you can view the connectivity of the MID servers to the
ServiceNow instance
How does the instance validate that a MID server is up and running? - CORRECT
ANSWER✔✔- The instance will put out a Heartbeat probe every 5 minutes, which the MID
server will read just like any other probe. If if responds back then it will mark it as up, if not
then it will mark it as down
, How often does the MID server check if the instance needs to be upgraded? - CORRECT
ANSWER✔✔- Every hour
When will changes to MID server parameters take effect? - CORRECT ANSWER✔✔- Only
when a MID server starts or restarts
What does ECC queue stand for? - CORRECT ANSWER✔✔- Electronic Communication
Channel Queue
How much does the MID server compress data when uploading to the SNOW input ECC? -
CORRECT ANSWER✔✔- MID servers compress data 10 to 1 when uploading to the input
ECC queue
What are the 3 states of an ECC queue record? - CORRECT ANSWER✔✔- Ready
Processing
Processed
How many instances can a MID server communicate with? - CORRECT ANSWER✔✔-
Only 1 at a time
How would you reconfigure a MID server to a new instance? - CORRECT ANSWER✔✔-
Rerun the MID server installer and input new URL and credentials
What fields are required when setting up a discovery job? - CORRECT ANSWER✔✔- Name
Discover
MID Server
IP Ranges
What are the related lists of a Discovery Schedule? - CORRECT ANSWER✔✔- Discovery
Log
Devices
