SNOW-CAD Practice Test 10 — 10 Questions

Question 1

A developer is tasked with creating a reference field on a custom table that shows only 'Windows' servers from the 'cmdb_ci_server' table. What is the proper way to implement this?

Accepted Answer

Define a reference qualifier on the field with the condition 'os_type=Windows'.. A reference qualifier is the standard ServiceNow mechanism to filter the records shown in a reference field's lookup. Setting a reference qualifier with the condition 'os_type=Windows' on a reference field pointing to cmdb_ci_server ensures only Windows servers appear in the selection list. This is declarative configuration, requires no scripting, and applies consistently across forms and lists.

Answer

Use a choice list instead of a reference field.

Answer

Create a business rule that filters the reference field.

Answer

Create a dynamic filter on the form.

Question 2

A large enterprise uses a scheduled import to retrieve order data from an external ERP system every night at 2 AM. The import runs a REST API call that returns JSON data, which is processed by an Import Set Row and a Transform Map to populate the custom table 'u_order'. Recently, the import completed with errors: some orders were not imported, and the error log shows 'Record already exists' for those orders. However, when the developer checks the 'u_order' table, the referenced orders do not exist. The developer reviews the Import Set Row and finds that the 'Coalesce' field is set to 'u_order_number', but further investigation reveals that the 'u_order_number' field is not unique in the table; multiple records can have the same order number because they are from different regions. The Transform Map is configured with 'On Success' = 'Update'. What is the best course of action to resolve the issue?

Accepted Answer

Modify the Coalesce field to use a combination of fields (e.g., order number and region) that uniquely identifies each record, or create a dedicated unique identifier.. The 'Record already exists' error occurs because the Coalesce field u_order_number is not unique — multiple regions can share the same order number, so the transform matches an existing record and, with On Success = Update, either updates the wrong row or fails when the match is ambiguous. The correct fix is to coalesce on a field or combination that uniquely identifies each record, such as order number plus region, or introduce a synthetic unique key. This restores correct insert/update behavior without disabling duplicate detection.

Answer

Remove the Coalesce field from the Transform Map so that duplicate detection is disabled.

Answer

Change the 'On Success' action on the Transform Map to 'Insert' to ensure all incoming records are treated as new.

Answer

Increase the frequency of the scheduled import to run every hour so that errors are minimized.

Question 3

A global company is using ServiceNow for IT Service Management. They have an external asset management system that needs to update asset records in ServiceNow in real-time. The integration is implemented using REST API calls from the external system to ServiceNow. Recently, the integration started failing intermittently with HTTP 429 (Too Many Requests) errors. The external system is sending a high volume of update requests (up to 1000 per minute) to the /api/now/table/alm_asset endpoint. The administrator noticed that the instance performance is degraded during peak times. The company wants to resolve the 429 errors while ensuring data is updated as quickly as possible, but without overloading the instance. Which course of action should the administrator take?

Accepted Answer

Implement a queue-based integration using Flow Designer to process updates asynchronously with a controlled rate.. It addresses the root cause of the 429 errors—overwhelming the REST API endpoint with synchronous requests—by decoupling the external system from direct writes. Using Flow Designer with a queue (e.g., via the ServiceNow Queue or a custom table) allows the external system to submit requests asynchronously, and then a scheduled flow or script processes them at a controlled rate (e.g., using a rate limiter or batch size). This ensures data is updated as quickly as possible without exceeding the instance's API rate limits or degrading performance, as the processing is throttled server-side.

Answer

Increase the API rate limit in the instance's system properties.

Answer

Reduce the number of requests from the external system to 500 per minute.

Answer

Switch the authentication method from basic to OAuth to reduce overhead.

Question 4

Which TWO statements are true about GlideAggregate?

Accepted Answer

It provides methods like addAggregate and getAggregate.. Option C is correct because GlideAggregate provides aggregation-specific methods such as addAggregate('COUNT') and getAggregate('COUNT') to build and read aggregate results like COUNT, SUM, AVG, MIN, and MAX. Option D is correct because GlideAggregate extends the GlideRecord class, inheriting query-building methods like addQuery, addEncodedQuery, and addCondition while adding aggregation capabilities. Option A is incorrect because getRowCount() belongs to GlideRecord for counting matching rows, whereas GlideAggregate uses getAggregate('COUNT') for counts. Option B is incorrect because GlideAggregate can aggregate on any valid field, not only sys_id fields. Option E is incorrect because a single GlideAggregate query operates on one table, just like GlideRecord, and cannot aggregate across multiple tables in one query.

Answer

It uses getRowCount() to retrieve the count.

Answer

It can only be used with sys_id fields.

Answer

It can aggregate data across multiple tables in a single query.

Question 5

A small IT department uses ServiceNow for incident management. They have a business rule that runs after insert on the Incident table. The rule is intended to send an email notification to the assignment group whenever a new incident is created. The rule uses a standard "send event" method, and the email notification is set up in the system mail properties. Recently, the group leader noticed that some incidents are not triggering emails. The developer investigates the business rule and confirms that the script executes without errors, but the email is not sent for those specific incidents. The developer checks the email notification configuration and finds that it is set to send to the "assigned user" rather than the "assigned group". After correcting this, the emails start working. However, the developer wants to understand why only some incidents were affected. Which of the following best explains the issue?

Accepted Answer

The email notification was incorrectly configured to send to the user, so only incidents assigned to a specific user triggered emails; incidents assigned to a group had no recipient. The email notification was configured to send to the 'assigned user' field, which is populated only when an incident is assigned to a specific individual. Incidents assigned directly to a group (with no user assigned) would have an empty 'assigned user' field, causing the notification to have no recipient and thus not be sent. After correcting the configuration to send to the 'assigned group', emails were triggered for all incidents, confirming that the issue was the recipient field mismatch.

Answer

The assignment group did not have any members for those incidents

Answer

The business rule script had a condition that randomly skipped some incidents

Answer

The SMTP server was intermittently down

Question 6

A developer is using ServiceNow Studio to deploy a custom application to a production instance. Which THREE actions are recommended best practices for deployment?

Accepted Answer

Test the application thoroughly in a sub-production instance before deployment.. Testing in a sub-production instance (e.g., development or test instance) is a fundamental best practice to validate application functionality, identify defects, and ensure stability before deploying to production. ServiceNow Studio integrates with update sets and scoped applications, but thorough testing in an isolated environment prevents disruptions to live services and data.

Answer

Use update sets to move the application to production.

Answer

Publish the application to the ServiceNow Store for deployment.

Question 7

Which TWO actions should a developer take when designing an inbound email integration in ServiceNow to ensure proper data mapping? (Choose two.)

Accepted Answer

Configure the inbound email action to trigger on the appropriate table. Inbound email actions in ServiceNow are configured to trigger on a specific target table, which defines where the incoming email data will be mapped and stored. This ensures that the email processing logic is applied to the correct table, enabling proper data mapping and field extraction.

Answer

Set up an ACL to allow the email user to write to the target table

Answer

Ensure the email includes an attachment with the data

Answer

Create a connection to the external email server

Question 8

Match each ServiceNow update set state to its meaning.

Accepted Answer

In progress: Changes are currently being made.. Update set states control the lifecycle of change tracking. 'In progress' indicates active work, 'Complete' indicates all changes are added, 'Committed' indicates the set is applied to an instance, and 'Submitted' indicates it is sent for review. Common confusions include swapping 'In progress' and 'Complete' definitions.

Answer

In progress: All changes have been added.

Answer

Complete: Changes are currently being made.

Question 9

A Service Portal widget uses an AngularJS controller that directly modifies the DOM using jQuery inside the controller. After a platform upgrade, the widget stops working properly. What is the most likely reason?

Accepted Answer

Direct DOM manipulation conflicts with AngularJS digest cycles. AngularJS relies on its digest cycle to detect model changes and update the DOM; when a controller manipulates the DOM directly with jQuery, AngularJS has no knowledge of those changes, so its internal model and the rendered view drift out of sync. Platform upgrades often change AngularJS versions, digest timing, or the rendering pipeline, which exposes or breaks this fragile coupling. The correct fix is to use AngularJS directives (ng-model, ng-if, custom directives) instead of jQuery DOM manipulation.

Answer

jQuery is no longer allowed

Answer

The widget's controller syntax changed

Answer

AngularJS was completely removed from the platform

Question 10

A company wants to synchronize user data from an external HR system into ServiceNow every night. The HR system pushes a CSV file to an SFTP server. Which ServiceNow feature should be used to automate this process?

Accepted Answer

Scheduled Import. Scheduled Import is correct because it allows ServiceNow to automatically import data from a CSV file on an SFTP server at scheduled intervals. This feature is designed for recurring data loads from external sources without manual intervention.

Answer

External Data Source

Answer

SOAP Web Service

Answer

REST API