SNOW-CAD Practice Test 11 — 15 Questions

Question 1

Match each ServiceNow REST API method to its CRUD equivalent.

Accepted Answer

GET: Retrieve data. Standard REST methods map to CRUD as follows: GET (Read), POST (Create), PUT (Update), DELETE (Delete). PATCH is often confused with PUT but is for partial updates, and HEAD is for metadata retrieval.

Answer

PATCH: Create a new record

Answer

HEAD: Update an existing record

Question 2

Which THREE factors contribute to poor UI performance in ServiceNow forms and portals? (Choose three.)

Accepted Answer

Large number of catalog client scripts in a variable set. Option B is correct because each catalog client script in a variable set executes in the browser whenever its condition is met, and a large number of them multiplies JavaScript execution, DOM manipulation, and re-render cycles on the catalog form, degrading UI responsiveness. Option C is correct because multiple client scripts bound to the 'load' event all run synchronously during form initialization, blocking the form from rendering until every script finishes, which directly delays time-to-interactive. Option E is correct because UI Macro server scripts that issue unindexed GlideRecord queries force full table scans on the database, and since macros render inline during page generation, those slow queries stall the server response and thus the UI. Option A is not a problem: simple conditions in UI Policies are lightweight and evaluated efficiently, so they do not contribute to poor performance. Option D is not a problem: CSS custom properties are natively supported by browsers and are a performant styling mechanism, not a cause of UI slowdown.

Answer

Using simple conditions in UI Policies

Answer

Use of CSS custom properties

Question 3

A developer needs to create a record in the 'task' table when a specific condition is met in a Business Rule. The new record should be linked back to the current record via a reference field. What is the best practice to ensure the new record is created in the same transaction?

Accepted Answer

Use GlideRecord with newRecord() and set values, then call insert().. Using GlideRecord with newRecord() and insert() within the same Business Rule ensures the new 'task' record is created in the same database transaction as the current record. This guarantees atomicity: if the insert fails, the entire transaction rolls back, preventing orphaned records. The reference field linking back to the current record is set synchronously before the insert, maintaining data integrity.

Answer

Use Flow Designer to create the record asynchronously.

Answer

Use the GlideRecord updateMultiple() method.

Answer

Call a Scripted REST API to insert the record.

Question 4

A developer is designing a custom application with a table that stores sensitive employee data. The requirement is that only managers can view records where they are the manager of the employee. Which two configurations are needed to implement this requirement?

Accepted Answer

Create an ACL with a condition script that checks if the logged-in user is the manager of the record's employee. A record-level ACL with a condition script can check whether the logged-in user matches the manager field on the employee record, enforcing that only managers can view those records. Option A is not correct because a UI Policy only changes how fields appear on the form; it does not restrict record access via lists, web services, or direct database queries and therefore cannot satisfy the requirement that only managers can view records. Option C is not correct because a view only changes form layout and does not enforce security. Option D is not correct because deleting records is destructive and does not implement a view restriction. Option E is not correct because a Client Script is client-side and can be bypassed. Only B is a valid configuration; no second option meets the record-level security requirement.

Answer

Use a UI Policy to set fields to read-only or invisible for non-managers

Answer

Create a new view that excludes sensitive fields

Answer

Create a Business Rule that deletes records if the user is not the manager

Answer

Use a Client Script to hide fields if the user is not the manager

Question 5

A developer wants to prevent users from closing an incident after it has been resolved for more than 30 days. Which approach should be used?

Accepted Answer

Create a business rule on 'before' that aborts the operation if the condition is met.. A 'before' business rule with an abort action is the correct server-side approach to prevent an operation from completing. When the condition (resolved_at is more than 30 days ago) is true, the business rule can call current.setAbortAction(true) to stop the incident from being updated or closed, ensuring the restriction is enforced regardless of the client interface.

Answer

Create an ACL to deny closing after 30 days.

Answer

Create a UI policy that disables the close button.

Answer

Create a client script that alerts the user.

Question 6

A developer created a UI Script and a Client Script as shown. Both scripts set urgency and impact to '1' when priority is '1'. However, when the priority is changed to '1' on an existing record, the urgency and impact fields do not update. What is the most likely cause?

Accepted Answer

The UI Script is not being called because it is not associated with any form or event. A UI Script is a reusable client-side script that must be explicitly called from a Client Script, UI Policy, or form event to execute. In this scenario, the UI Script is not associated with any form or event, so it never runs when the priority field changes. The Client Script alone cannot invoke the UI Script without a direct call, leaving the urgency and impact fields unupdated.

Answer

The priority field is not a choice field, so onChange does not fire

Answer

The Client Script function name is incorrect; it should be 'onChangePriority'

Answer

The g_form API is deprecated and no longer works

Question 7

A developer needs to filter a list of records based on a reference field condition using a reference qualifier. Which method is used to define a reference qualifier on a dictionary entry?

Accepted Answer

Reference qual. Reference qualifiers are defined in the 'Reference qual' field on the dictionary entry to filter records based on a reference field condition. Option A is incorrect because 'Reference specification' is used for setting the reference table, not for filtering with a qualifier. Option B is incorrect because 'Default value' sets a default value for the field, not a filter. Option D is incorrect because 'Dependent fields' are used to define field dependencies, not reference qualifiers.

Answer

Reference specification

Answer

Default value

Answer

Dependent fields

Question 8

Which THREE are required components of a Transform Map? (Choose three.)

Accepted Answer

Source table (import set table). A Transform Map requires a Source table (import set table) (C) because it defines the staging table that holds the raw imported records the transform will read from. It also requires Field mappings (D), which specify how each source field maps to a corresponding field on the target record. Finally, it requires a Target table (E), the table where the transformed data is written, since the map must know the destination for the records. A Condition script (A) is optional — it can filter or control which rows are transformed but is not mandatory. A Data source (B) is also not a component of the Transform Map itself; data sources are separate records used to define imports, and the transform operates on the import set table regardless of how the data arrived.

Answer

Condition script

Answer

Data source

Question 9

Refer to the exhibit. A developer runs this script and notices it only returns 10 incidents even though there are more than 10 active priority 1 incidents. What is the reason?

Accepted Answer

The setLimit(10) method limits the number of records returned.. The script uses the setLimit(10) method, which restricts the GlideRecord query to return only 10 records, even though there are more matching records. Option A is incorrect because the script does not limit by session. Option B is incorrect because there is no filter for created today. Option C is incorrect because the issue is about the limit, not joins.

Answer

The script only gets incidents from the current session.

Answer

The script only retrieves incidents created today.

Answer

The incident table is not joined with any other table.

Question 10

A developer is optimizing a Business Rule that runs on every update to the 'incident' table. The rule uses GlideAggregate to count related records. The developer notices performance degradation. Which change will most improve performance while maintaining functionality?

Accepted Answer

Add a condition to the Business Rule such as 'current.changesField('state')' to only run the aggregate when relevant.. It prevents the GlideAggregate from executing on every update, instead running only when the 'state' field changes. This reduces unnecessary database operations, directly addressing the performance degradation while preserving the rule's functionality when needed.

Answer

Replace GlideAggregate with GlideRecord and count results manually.

Answer

Add a database index on the foreign key field used in the aggregate.

Answer

Use the gs.addInfoMessage() to log the count and disable the script in production.

Question 11

An administrator needs to create a custom table to store project-related information. The table must allow records to be assigned to a specific user. Which field type should be used for the assignment field to ensure proper integration with ServiceNow's assignment rules and notifications?

Accepted Answer

Reference to the User table. A Reference field to the User table (sys_user) is the correct field type because it creates a relationship to user records, enabling ServiceNow's assignment rules, notifications, and assignment logic to function properly. Reference fields store a sys_id pointing to the referenced record and are the standard way to assign records to users. This ensures integration with user-based workflows and access controls.

Answer

Manager

Answer

Integer

Answer

Assignment group

Question 12

A developer needs to capture the time when a field (assigned_to) was last changed. Which approach should be used?

Accepted Answer

Create a business rule on 'after' update that sets a 'last_assigned' field when assigned_to changes.. A business rule running 'after' update can check if the 'assigned_to' field value changed (using previous()) and set a 'last_assigned' field to the current date/time (gs.nowDateTime()). This server-side, platform-native approach reliably captures the timestamp when the field changes. Option A (calculated field) is incorrect because calculated fields are read-only and derive values from other fields; they cannot set a timestamp when a field changes. Option C (database trigger) is not recommended as it bypasses the ServiceNow platform and could cause synchronization issues. Option D (dictionary override to enable auditing) is incorrect because auditing tracks all changes to the field in the audit table but does not store the last change timestamp in a separate field on the record; it would require querying the audit log to find the last change.

Answer

Create a calculated field using a formula.

Answer

Create a database trigger to log the change.

Answer

Use a dictionary override to enable auditing.

Question 13

A developer is building a flow in Flow Designer as part of a scoped application. The flow needs to trigger when a record is created in a specific table. Which trigger should be used?

Accepted Answer

'Record Created' trigger with a condition. The 'Record Created' trigger fires when a new record is created in a specified table, which matches the requirement. Option B is incorrect because an 'Event' trigger requires a custom event to be published, not a record creation. Option C is incorrect because 'Application Record Created' is not a standard trigger in Flow Designer; the correct trigger for record creation is 'Record Created'. Option D is incorrect because 'Scheduled' triggers are time-based and are not triggered by record creation.

Answer

'Event' trigger

Answer

'Application Record Created' trigger

Answer

'Scheduled' trigger

Question 14

A company needs to retrieve all active users whose department is 'Sales' and who have a manager assigned. They are using GlideRecord. Which script will correctly accomplish this?

Accepted Answer

var gr = new GlideRecord('sys_user'); gr.addQuery('active', true); gr.addQuery('department', 'Sales'); gr.addQuery('manager', 'ISNOTEMPTY'); gr.query();. It correctly adds queries for active = true, department = 'Sales', and manager ISNOTEMPTY, then executes query() to retrieve all matching records. Option A is incorrect because getRow() is not a valid GlideRecord method. Option C lacks the manager condition. Option D incorrectly uses get() which retrieves a single record by sys_id, not a query.

Answer

var gr = new GlideRecord('sys_user'); gr.addQuery('active', true); gr.addQuery('department', 'Sales'); gr.addQuery('manager', 'ISNOTEMPTY'); var rows = gr.getRow();

Answer

var gr = new GlideRecord('sys_user'); gr.addQuery('active', true); gr.addQuery('department', 'Sales'); gr.query();

Answer

var gr = new GlideRecord('sys_user'); gr.get('active', true); gr.get('department', 'Sales'); gr.get('manager', 'ISNOTEMPTY');

Question 15

The script above fails with HTTP 400 Bad Request. What is the most likely missing configuration?

Accepted Answer

The Content-Type header is not set to application/json. An HTTP 400 Bad Request from a REST API that expects JSON typically occurs when the Content-Type header is missing or set to something other than application/json, so the server cannot parse the body. Setting Content-Type: application/json tells the server how to interpret the payload. This is the most likely missing configuration in a script that otherwise has a valid URL and method.

Answer

The HTTP method should be PUT instead of POST

Answer

Missing authentication credentials

Answer

The Accept header should be text/plain