Quick Answer
The answer is the Attachment variable type. This is the correct choice because it is the only variable type in ServiceNow specifically designed for file uploads in catalog items, providing a built-in file picker that stores the uploaded file as an attachment directly on the requested record. On the ServiceNow Certified Application Developer CAD exam, this question tests your understanding of catalog item variable types and their specific use cases; a common trap is confusing the Attachment type with the Document ID or String types, which cannot handle file uploads. Remember that any time a user needs to submit a document through a catalog form, the Attachment variable type is the required solution. A helpful memory tip: think of the paperclip icon associated with attachments—if the requirement involves a file, clip on the Attachment variable.
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 catalog item that requires a user to upload a file. Which variable type should be used?
Attachment
Attachment variable type allows file uploads.
Multi Line Text
Why wrong: Multi Line Text is for long text, not file uploads.
Single Line Text
Why wrong: Single Line Text is for short text input, not file uploads.
Checkbox
Why wrong: Checkbox is for boolean values.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Attachment
The Attachment variable type is specifically designed for file uploads in ServiceNow catalog items. It provides a built-in file picker and stores the uploaded file as an attachment on the requested record, enabling users to submit documents directly through the catalog form.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Attachment
Why this is correct
Attachment variable type allows file uploads.
Related concept
Read the scenario before looking for a memorised answer.
Multi Line Text
Why it's wrong here
Multi Line Text is for long text, not file uploads.
Single Line Text
Why it's wrong here
Single Line Text is for short text input, not file uploads.
Checkbox
Why it's wrong here
Checkbox is for boolean values.
Common exam traps
ServiceNow often tests the distinction between variable types that handle data differently; the trap here is that candidates might confuse 'Attachment' with 'Single Line Text' thinking a file path can be entered as text, but ServiceNow requires the dedicated Attachment variable for actual file uploads.
Detailed technical explanation
Under the hood, the Attachment variable type leverages the sys_attachment table to store uploaded files, associating them with the catalog task or request via the table_sys_id and table_name fields. This variable type also enforces file size limits (default 5 MB) and allowed file extensions defined in the system property glide.attachment.max_size and glide.attachment.extensions. In real-world scenarios, this is critical for HR onboarding forms where employees must upload identification documents or resumes.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
The correct answer is: Attachment — The Attachment variable type is specifically designed for file uploads in ServiceNow catalog items. It provides a built-in file picker and stores the uploaded file as an attachment on the requested record, enabling users to submit documents directly through the catalog form.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 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.
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