CIS-Discovery 시험 - ServiceNow실제시험문제와 답 - 45문항

Question No : 1

Which of the following is required for a MID Server to have access to automatically stay up-to-date with instance versions?

A.install.service-now.com
B.docs.servicenow.com
C.developer.service-now.com
D.service-now.com

정답:
Explanation:
A MID Server needs to have access to the install.service-now.com domain to automatically stay up-to-date with instance versions. This domain hosts the MID Server upgrade files that are downloaded and installed by the MID Server when a new version is available. The MID Server checks for updates every 24 hours by default, or when the mid.upgrade.check_interval property is set12.
Reference: 1: ServiceNow Discovery Documentation, MID Server Upgrade section
2: ServiceNow Support Article, Connections to allow list for the MID Server

Question No : 2

The following shows part of the Windows OS - Servers pattern in Pattern Designer:

Which of the steps above use(s) a shared library?

A.Step 26
B.Neither step
C.Step 25
D.Both steps

정답:
Explanation:
Step 25 uses a shared library called Windows - Storage, which is a reusable component that can be invoked by multiple patterns to discover the storage information of Windows servers. A shared library is a collection of steps that can be referenced by a pattern name and can accept input parameters and return output values. Shared libraries help to avoid duplication of code and simplify the maintenance of patterns.
Reference: Pattern Designer | Shared libraries
Windows - Storage shared library

Question No : 3

A config file for an application has the following three lines:
Line 1: app build 1.2.3.4 version 5.14
Line 2: installation_dir=c:\opt\bin
Line 3: build_type=Server.
Which methods below will extract the build and version numbers from these lines using a horizontal discovery pattern? (Choose two.)

A.Get Process operation with correct Port
B.Find Matching URL operation with Target Variable
C.Parse File operation with Delimited Text parsing strategy
D.Parse File operation with Regular Expression parsing strategy

정답:
Explanation:
A horizontal discovery pattern is a series of operations that tell Discovery how to find and identify an application on a host1.
To extract the build and version numbers from the config file, the pattern can use either of the following methods:
Parse File operation with Delimited Text parsing strategy: This operation reads the content of a file and splits it into fields based on a delimiter character. The pattern can specify the delimiter as a space and the fields to extract as the second and fourth ones from the first line of the file2.
Parse File operation with Regular Expression parsing strategy: This operation reads the content of a file and matches it against a regular expression. The pattern can specify the regular expression as app build (\d+\.\d+\.\d+\.\d+) version (\d+\.\d+) and the groups to extract as the first and second ones from the first line of the file2.
Reference: 1: Patterns and horizontal discovery - Product Documentation: Tokyo - ServiceNow
2: Parse File operation - Product Documentation: San Diego - ServiceNow

Question No : 4

Which choice best describes a horizontal discovery pattern?

A.Steps that execute operations
B.Credential depot
C.Port scanning tool
D.Classifiers that execute probes

정답:
Explanation:
A horizontal discovery pattern is a set of steps that execute operations to identify, classify, and populate attributes for configuration items (CIs) of a specific category or class, such as infrastructure or application. A horizontal pattern can be applied to any operating system or platform that supports the required protocols and commands12.
Reference: Horizontal discovery patterns
Discovery pattern types

Question No : 5

Which choice best describes what happens when, by default, duplicate CIs are detected during identification and reconciliation?

A.A notification is sent to the CI owner.
B.An associated identification rule is created automatically.
C.Each set of duplicate CIs is added to a de-duplication task.
D.The next discovery is stopped for the CI that is duplicated.

정답:
Explanation:
When Discovery or Service Mapping identifies a CI that matches an existing CI in the CMDB, it checks whether the CIs are duplicates or not. If they are duplicates, Discovery adds them to a de-duplication task, which is a record that groups duplicate CIs and allows you to review and remediate them. You can use the Duplicate CI Remediator wizard to merge, flag, retire, or delete the duplicate CIs. By default, Discovery does not send notifications, create identification rules, or stop the next discovery for duplicate CIs.
Reference: Handle Duplicate CIs in your CMDB, De-duplication tasks, How to de-duplicate 2 ESX servers with same name?

Question No : 6

From an SNMP Query pattern operation, which of the choices are valid Variable Types? (Choose two.)

A.Test
B.Table
C.Scalar
D.CI Type

정답:
Explanation:
The SNMP Query pattern operation executes an SNMP query on a target device and stores the results in a variable. The Variable Type field determines the format of the results. There are two valid Variable Types for this operation: Table and Scalar. Table is used when the query returns multiple values, such as a list of interfaces or processes. Scalar is used when the query returns a single value, such as the system name or uptime12.
Reference: SNMP Query pattern operation - Product Documentation: San Diego - Now Support Portal SNMP Query pattern operation - Product Documentation: Vancouver - ServiceNow Reference: https://docs.servicenow.com/bundle/quebec-it-operations-management/page/product/service-mapping/reference/r_PatternVariables.html

Question No : 7

For the Set Parameter Value operation, which of the following is used in the syntax to declare a constant, unchanging Value?

A.Hash tag
B.Brackets
C.Quotes
D.Dollar sign

정답:
Explanation:
The Set Parameter Value operation is used to assign a value to a variable in a Discovery pattern1.
The syntax for this operation is as follows2:
Set Parameter Value: <Variable Name> = <Value>
The <Value> can be either a constant or an expression. To declare a constant, unchanging value, one must use quotes around the value.
For example2:
Set Parameter Value: $name = "John"
This assigns the string “John” to the variable $name. The quotes indicate that the value is a constant and will not change. The other options, hash tag, brackets, and dollar sign, are not used to declare a constant value. They have different meanings in the syntax of the Set Parameter Value operation. A hash tag (#) is used to indicate a comment2. Brackets ([]) are used to access an element of an array or a map2. A dollar sign

Question No : 8

Refer to the exhibit.

Based on the following image, which of the following choices is also true about London Linux Servers?

A.It is a CMDB Group with Dashboard Group type.
B.It is a CMDB Group with Health Group type.
C.It is a Datacenter Group in London.
D.It is a CMDB Group with Default Group type.

정답:
Explanation:
London Linux Servers is a CMDB Group with Health Group type. A CMDB Group is a collection of configuration items (CIs) that share common characteristics or are related in some way1. A Health Group is a type of CMDB Group that is used to monitor and measure the health of a specific set of CIs based on predefined rules and metrics2. The image shows that London Linux Servers is selected from the CMDB Health Group List, which is a dropdown menu that displays all the Health Groups defined in the system3. The image also shows the Group Health tab, which displays the health scores and indicators for the selected Health Group.
Reference: 1: Create a CMDB group - ServiceNow 2: CMDB health groups - ServiceNow 3: CMDB health dashboard - ServiceNow: [View CMDB health scores - ServiceNow]

Question No : 9

What are the two main options within a Parse File operation?

A.Discover Now and Quick Discovery
B.Select Operating System and Method
C.Select File and Define Parsing
D.Match and Select File

정답:
Explanation:
The Parse File operation is used to extract information from a file and create variables to contain the extracted information1. The two main options within a Parse File operation are Select File and Define Parsing2. Select File allows you to specify the file path or browse to the file. Define Parsing allows you to select the relevant parsing strategy and define parsing criteria2.
Reference: 1: Parse a file
2: Define discovery steps
Reference: https://docs.servicenow.com/bundle/paris-it-operations-management/page/product/service-mapping/task/t_ParseFilePatDef.html

Question No : 10

Which of the following choices explain differences between Service Mapping and Discovery? (Choose two.)

A.Discovery requires agent installation to find hardware devices, Service Mapping requires agents for software.
B.Discovery finds applications and devices on your network, Service Mapping monitors those devices.
C.Discovery utilizes IP address ranges for initial discovery, Service Mapping uses entry points.
D.Discovery addresses inventory-related use-cases, while Service Mapping allows for the creation of accurate maps of application service topologies.

정답:
Explanation:
Discovery and Service Mapping are both products that help to identify and map the IT infrastructure and services in an organization. However, they have different approaches and objectives. Discovery uses IP address ranges as the starting point for finding devices and applications on the network, and then runs probes and sensors to collect information and classify them. Discovery focuses on inventory-related use-cases, such as asset management, configuration management, and compliance. Service Mapping uses entry points, such as URLs or host names, as the starting point for mapping business services and their dependencies. Service Mapping runs patterns, which are sequences of operations that follow the traffic connections between devices and applications, and then creates a service map that shows the logical and semantic relationships. Service Mapping focuses on service-related use-cases, such as service availability, impact analysis, and root cause analysis12.
Reference: 1: ServiceNow Discovery Overview, page 9
2: ServiceNow Discovery Documentation, Service Mapping section
Reference: https://community.servicenow.com/community?id=community_article&sys_id=767aab87dbccc0106064eeb5ca9619fb

Question No : 11

Which metrics comprise the Completeness KPI for CMDB Health? (Choose two.)

A.Required
B.Recommended
C.Audit
D.Overall

정답:
Explanation:
Reference: https://docs.servicenow.com/bundle/quebec-servicenow-platform/page/product/configuration- management/reference/r_CMDBHealthMetrics.html

Question No : 12

What entry point type must a horizontal pattern have to execute from a process classifier?

A.A subnet entry point type.
B.HTTP(S) entry point type if the pattern is running on a web server application.
C.TCP entry point type or ALL entry point type.
D.It does not matter, it is triggered for all entry point types.

정답:
Explanation:
A horizontal pattern must have a TCP entry point type or an ALL entry point type to execute from a process classifier. A process classifier is a rule that matches a process running on a host and triggers a horizontal pattern to discover the application associated with that process1. The entry point type determines the type of connection that the pattern uses to access the target host. A TCP entry point type means that the pattern uses a TCP port to connect to the host, while an ALL entry point type means that the pattern can use any available connection method2.
Reference: 1: Process classifiers - Product Documentation: San Diego - ServiceNow
2: Horizontal Pattern probe - Product Documentation: San Diego - ServiceNow
Reference: https://docs.servicenow.com/bundle/quebec-it-operations-management/page/product/discovery/concept/c-UsingPatternsForHorizontalDiscovery.html

Question No : 13

Given a custom column named u_custom_column on table cmdb_ci_linux_server, which variable syntax should be used to populate the column in a horizontal discovery pattern using the Set Parameter Value operation?

A.$user_var_custom_column
B.$cmdb_ci_linux_server.u_custom_column.INSERT
C.$u_custom_column[1].cmdb_ci_linux_server
D.$cmdb_ci_linux_server[*].u_custom_column

정답:
Explanation:
The correct variable syntax to populate a custom column in a horizontal discovery pattern is $cmdb_ci_linux_server.u_custom_column.INSERT. This syntax indicates that the value of the custom column will be inserted into the cmdb_ci_linux_server table for the current CI. The other options are either invalid or incorrect syntaxes for this operation12.
Reference: Set Parameter Value operation
Pattern variables

Question No : 14

File-based Discovery is triggered during the.

A.Classify Phase
B.Scan Phase
C.Exploration Phase
D.Pattern Phase
E.Identification Phase

정답:
Explanation:
File-based Discovery is a process that helps identify what software is running on your Windows and UNIX servers and devices, even if there is no registration information available. File-based Discovery is triggered in the exploration phase of normal Discovery, after the target device has been classified and identified. File-based Discovery probes execute a scan searching for specific file extensions or file names in paths that you configure. The resulting file information is returned in the probe payload.
The sensor attempts to match the discovered files with installed software, using the file name, size, and version returned by the probe.
Reference: File-based Discovery, File Based Discovery - Support and Troubleshooting
Reference: https://docs.servicenow.com/bundle/paris-it-operations-management/page/product/discovery/concept/file-based-discovery.html

Question No : 15

Which of the following pattern operations query targets? (Choose two.)

A.WMI Query
B.Merge Table
C.Get Process
D.Parse Variable

정답:
Explanation:
Pattern operations are the building blocks of patterns that define the logic and actions to perform on the target CIs. Some pattern operations query targets to retrieve information or execute commands, while others manipulate data or perform other tasks. WMI Query and Get Process are examples of pattern operations that query targets. WMI Query executes a Windows Management Instrumentation (WMI) query on a Windows target and stores the results in a variable. Get Process executes a command to list the processes running on a target and stores the results in a variable12.
Reference: Pattern operations - Product Documentation: Vancouver - ServiceNow
Pattern operations - Product Documentation: San Diego - Now Support Portal
Reference: https://docs.servicenow.com/bundle/paris-it-operations-management/page/product/service- mapping/task/t_WMIQueryPatDef.html

ServiceNow CIS-Discovery 시험