What are the three key tables in an enterprise CMDB? (Choose three.)
The Configuration Management Database (CMDB) in ServiceNow is a core component of IT Service Management (ITSM), allowing organizations to track Configuration Items (CIs) and their relationships. There are three key tables that form the foundation of the CMDB:
cmdb (Base CMDB Table):
This is the parent table for all Configuration Items (CIs) in the CMDB.
It contains the foundational structure upon which all other CMDB-related tables are built.
It does not store CI records itself but serves as the primary reference table.
cmdb_ci (CI Base Class Table):
This is the base class for all Configuration Items (CIs).
All specific CI classes (such as servers, applications, networks) extend from this table.
It holds general CI attributes that are common across all CI types.
cmdb_rel_ci (CMDB Relationship Table):
This table defines relationships between different Configuration Items.
It stores dependencies and associations between CIs, such as a server hosting an application.
Relationships are critical for impact analysis and dependency mapping.
Incorrect Answer Choices Explained:
B . sn_cmdb_bak & E. cmdb_bak:
These tables do not exist in the standard CMDB schema. They may be mistaken for potential backup tables, but they are not official CMDB tables.
D . sn_cmdb & G. sn_cmdb_ci:
Prefix 'sn_' generally indicates Scoped Application Tables in ServiceNow.
Standard CMDB tables exist in the global scope without the 'sn_' prefix.
'sn_cmdb' and 'sn_cmdb_ci' are not key tables in the global CMDB architecture.
Official ServiceNow CSA (Certified System Administrator) Training Documentation
ServiceNow Product Documentation: CMDB Tables and Relationships
ServiceNow CMDB Overview and Best Practices: CMDB Guide
What actions are taken to filter a long list of records to show only those with the Category of Hardware?
When working with a long list of records, users can filter data quickly using the Show Matching feature.
Correct Answer
C . On the list, locate and right-click on the value Hardware, select Show Matching
Right-clicking on the 'Hardware' value and selecting 'Show Matching' filters the list to only show records where the Category is Hardware.
This is the fastest way to apply a quick filter.
Incorrect Answer Choices
A . On Breadcrumb, click the > icon, type Hardware and click enter
Breadcrumbs do not support direct text input for filtering.
Breadcrumbs show existing filters but are not used to type new values.
B . On the Category column header, right-click and select Show > Hardware
Incorrect menu option---There is no 'Show > Hardware' selection.
Instead, users would need to use 'Show Matching' (Correct Answer C).
D . Right-click on magnifier, type Hardware, and click enter
There is no 'magnifier' option for filtering in list view.
E . Click Funnel icon, type Hardware and click enter
The Funnel (Filter) icon is used to create advanced filters, but it does not support direct text input like this.
The correct way to use the Filter would be:
Click the Funnel icon
Set Category = Hardware
Click Run
ServiceNow Documentation: Filtering Data in a List
ServiceNow UI Guide: Using the Show Matching Feature
Which component of a table contains a piece of data for one record?
Understanding Table Structure in ServiceNow:
A table in ServiceNow is a structured collection of data, similar to a database table.
Each record (row) in a table consists of multiple fields (columns), where each field holds a specific piece of information.
Why 'Field' is the Correct Answer:
A field is a single unit of data storage in a table.
Each field corresponds to a specific data attribute (e.g., Name, Email, Phone Number).
A record (also called a row) consists of multiple fields.
Why Other Answers Are Incorrect:
A . Factor Not a recognized ServiceNow term related to tables or data storage.
C . Datapoint While a field may contain a data point, ServiceNow does not use this term in table structure definitions.
D . Element In ServiceNow, 'element' is sometimes used in scripting but does not specifically refer to a field in a table.
E . Item 'Item' is used in catalog and asset management but does not refer to a component of a table.
Best Practice Solution:
Use Table Dictionary to explore fields in a table.
Navigate to System Definition Tables & Columns to review the structure of any table.
ServiceNow Docs: Data Dictionary Tables
ServiceNow CSA Documentation on Tables and Fields
What is the master table that contains a record for each table in the database?
In ServiceNow, all tables in the database are recorded in a master table called [sys_db_object]. This table stores metadata about each table in the system, including its name, label, and other attributes.
Key Functions of [sys_db_object]:
Stores a record for every table in the ServiceNow instance.
Tracks essential table properties, such as the table name, label, and whether it is an extension of another table.
Helps administrators view, modify, or create new tables in ServiceNow.
Used in Table Administration and Custom Table Development.
Why the Other Options Are Incorrect?
A . [sys_master_db] --
This table does not exist in ServiceNow.
C . [sys_master_object] --
There is no such table named 'sys_master_object' in ServiceNow.
D . [sys_object_db] --
This table does not exist in ServiceNow.
The correct name is sys_db_object.
How to View the [sys_db_object] Table in ServiceNow?
Navigate to System Definition Tables.
Search for the table sys_db_object.
Open the table to see records representing all tables in the instance.
Reference from Certified System Administrator (CSA) Documentation:
ServiceNow Docs: Understanding Tables and Fields https://docs.servicenow.com/en-US/bundle/utah-platform-administration/page/administer/metadata/concept/c_TablesAndFields.html
ServiceNow CSA Official Training Guide (System Data and Tables Overview)
This confirms that [sys_db_object] is the master table that contains a record for every table in the ServiceNow database.
Which objects are used as part of the client-side scripting API?
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