Discovery Exam 2024 Questions and Answers | 100% Verified

Discovery Exam 2024 Questions and Answers | 100% Verified What are the 5 steps in Discovery? -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? -Answer-Checking ECC queue entries with a value of Output and status of Ready What are the 4 discovery phases? -Answer-1) Port Scan Phase 2) Classification 3) Identification 4) Exploration What happens during Port Scan phase? -Answer-It's a Shazzam probe that scans for all active services, essentially saying "Are you out there?" What happens during the Classification Phase? -Answer-Determines the device type and how to classify it What happens during the Identification Phase? -Answer-Determines the CI's existence and if it has ever seen it before What happens during the exploration phase? -Answer-Explores the CI device for more information about itself What does the dependency view show? -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? -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? -Answer-To facilitate communication and movement of data between the ServiceNow platform and external application behind the enterprise firewall What is a MID server? -Answer-A lightweight Java process that runs on a Windows or Linux server What are probes? -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? -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? -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? -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? -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? -Answer- Every hour When will changes to MID server parameters take effect? -Answer-Only when a MID server starts or restarts What does ECC queue stand for? -Answer-Electronic Communication Channel Queue How much does the MID server compress data when uploading to the SNOW input ECC? -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? -Answer-Ready Processing Processed How many instances can a MID server communicate with? -Answer-Only 1 at a time How would you reconfigure a MID server to a new instance? -Answer-Rerun the MID server installer and input new URL and credentials What fields are required when setting up a discovery job? -Answer-Name Discover MID Server IP Ranges What are the related lists of a Discovery Schedule? -Answer-Discovery Log Devices ECC queue What are the 4 high level groups of Discovery troubleshooting? -Answer-Connectivity Permissions Probes, Sensors, Process Classifiers Configuration Credentials such as username and password are used to gain access into computers for Discovery. Where are these credentials stored? -Answer-They are stored in an encrypted field on the Credentials Table How does the MID server store credentials? -Answer-The MID Server pulls down credentials and stores them locally What happens when credentials are submitted or updated on the discovery_credentials table? -Answer-They are encrypted with a fixed instance key When credentials are requested by the MID server what are the steps the platform takes to decrypting? -Answer-1) Credentials are decrypted on the instance with a fixed key 2) The credentials are re-encrypted on the instance with the fixed web service key 3) The credentials are encrypted on the instance with SSL 4) The credentials are decrypted on the MID server with SSL 5) The credentials are decrypted on the MID server with fixed web service key What is credential affinity? -Answer-Credential Affinity is when discovery or orchestration first attempts to access a device, it uses all credentials. As soon as it finds the credentials it creates an affinity relationship for quicker access next time What table are credential affinitys stored? -Answer-dscy_credential_affinity What version of PowerShell does ServiceNow support? -Answer-PowerSh