- A
Use the Configuration Item (cmdb_ci) table as a base
Why wrong: Incorrect; the cmdb_ci table is designed for CMDB items and includes many CI-specific fields.
- B
Create a new table that extends directly from sys_db_object
Correct; creating a custom table that extends from the base system object provides only core fields and allows future extensibility without unnecessary overhead.
- C
Extend from the Task table
Why wrong: Incorrect; the Task table includes many workflow fields that are unnecessary for a simple license tracking table, but it does provide core fields and extensibility. However, it's not the best practice unless you need task functionality.
- D
Clone the Incident table and remove unnecessary fields
Why wrong: Incorrect; cloning an existing table is not recommended because it copies behavior and may cause maintenance issues.
Quick Answer
The correct choice is to create a new table that extends directly from sys_db_object. This is because sys_db_object is the foundational meta-table in ServiceNow that provides the core system fields—such as sys_id, sys_created_by, sys_updated_on, and sys_mod_count—to every record in the platform. By extending from sys_db_object, you create a custom table base that inherits these essential fields automatically and, crucially, allows future sub-tables to extend from it, supporting extensibility without being locked into any application-specific schema. On the ServiceNow Certified Application Developer exam, this concept tests your understanding of table inheritance and platform architecture; a common trap is choosing a table like task or cmdb_ci, which carry inherited business logic and constraints that are unnecessary for a standalone license tracker. A helpful memory tip: think of sys_db_object as the “grandparent” of all tables—if you want a clean slate with just the core fields, always extend from the root.
SNOW-CAD Core Application Development Practice Question
This SNOW-CAD practice question tests your understanding of core application development. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer is creating a new custom table for tracking software licenses. The table must inherit the core fields (sys_id, sys_created_by, etc.) and support extensibility for future sub-tables. Which base table should be used?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create a new table that extends directly from sys_db_object
Option B is correct because extending a new table directly from sys_db_object creates a base table that automatically inherits the core system fields (sys_id, sys_created_by, etc.) and supports extensibility for future sub-tables. This is the standard approach in ServiceNow for creating custom tables that are not tied to any specific application or business logic, ensuring maximum flexibility and adherence to platform best practices.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use the Configuration Item (cmdb_ci) table as a base
Why it's wrong here
Incorrect; the cmdb_ci table is designed for CMDB items and includes many CI-specific fields.
- ✓
Create a new table that extends directly from sys_db_object
Why this is correct
Correct; creating a custom table that extends from the base system object provides only core fields and allows future extensibility without unnecessary overhead.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Extend from the Task table
Why it's wrong here
Incorrect; the Task table includes many workflow fields that are unnecessary for a simple license tracking table, but it does provide core fields and extensibility. However, it's not the best practice unless you need task functionality.
- ✗
Clone the Incident table and remove unnecessary fields
Why it's wrong here
Incorrect; cloning an existing table is not recommended because it copies behavior and may cause maintenance issues.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose the Task table (Option C) because they mistakenly believe all custom tables must extend from a 'task-like' structure, but ServiceNow explicitly recommends sys_db_object for custom base tables that do not require task management features.
Detailed technical explanation
How to think about this question
When a table extends from sys_db_object, it becomes a root-level table in the database hierarchy, meaning it has its own sys_id namespace and can be extended by other tables without inheriting unwanted behaviors. This is crucial for custom applications because it allows the developer to define only the fields and relationships needed, while still benefiting from core system fields like sys_updated_by and sys_created_on. In practice, this approach avoids the pitfalls of inheriting complex business logic from tables like Task or cmdb_ci, which can cause performance degradation and unexpected behavior in custom modules.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the SNOW-CAD exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Core Application Development — study guide chapter
Learn the concepts, then practise the questions
- →
Core Application Development practice questions
Targeted practice on this topic area only
- →
All SNOW-CAD questions
500 questions across all exam domains
- →
ServiceNow Certified Application Developer CAD study guide
Full concept coverage aligned to exam objectives
- →
SNOW-CAD practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SNOW-CAD practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Working with Data practice questions
Practise SNOW-CAD questions linked to Working with Data.
Platform Features and Integration practice questions
Practise SNOW-CAD questions linked to Platform Features and Integration.
Integrating and managing application data practice questions
Practise SNOW-CAD questions linked to Integrating and managing application data.
Automating application logic with business rules and scripts practice questions
Practise SNOW-CAD questions linked to Automating application logic with business rules and scripts.
Application development using ServiceNow Studio practice questions
Practise SNOW-CAD questions linked to Application development using ServiceNow Studio.
Creating and customizing tables and data practice questions
Practise SNOW-CAD questions linked to Creating and customizing tables and data.
Designing interfaces and user experiences practice questions
Practise SNOW-CAD questions linked to Designing interfaces and user experiences.
Core Application Development practice questions
Practise SNOW-CAD questions linked to Core Application Development.
User Interface Development practice questions
Practise SNOW-CAD questions linked to User Interface Development.
SNOW-CAD fundamentals practice questions
Practise SNOW-CAD questions linked to SNOW-CAD fundamentals.
SNOW-CAD scenario practice questions
Practise SNOW-CAD questions linked to SNOW-CAD scenario.
SNOW-CAD troubleshooting practice questions
Practise SNOW-CAD questions linked to SNOW-CAD troubleshooting.
Practice this exam
Start a free SNOW-CAD practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a new table that extends directly from sys_db_object — Option B is correct because extending a new table directly from sys_db_object creates a base table that automatically inherits the core system fields (sys_id, sys_created_by, etc.) and supports extensibility for future sub-tables. This is the standard approach in ServiceNow for creating custom tables that are not tied to any specific application or business logic, ensuring maximum flexibility and adherence to platform best practices.
What should I do if I get this SNOW-CAD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 25, 2026
This SNOW-CAD practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CAD exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.