SNOW-CAD Core Application Development Practice Test 5 — 15 Questions

Question 1

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?

Choose an answer to begin — your selection is scored in the full session.

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 2

A Script Include is defined as 'Scoped' and has 'Accessible from' set to 'All applications'. It contains a function that uses 'gs.getUser()'. When the Script Include is called from a Business Rule in a different application scope, what is the result?

Accepted Answer

The function runs successfully and gs.getUser() returns the current user from the caller's session.. A Script Include defined as 'Scoped' with 'Accessible from' set to 'All applications' is explicitly made available to other application scopes. When called from a Business Rule in a different scope, the function executes in the context of the caller's session, so `gs.getUser()` returns the current user from the caller's session, not from the Script Include's own scope. This behavior is governed by the scoping rules that allow cross-application access when the property is set accordingly.

Answer

An error occurs because scoped Script Includes cannot be called from other applications.

Answer

The function runs but gs.getUser() returns the user from the Script Include's application scope, not the caller.

Answer

The function runs but returns null because gs is not available in scoped applications.

Question 3

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 4

A service catalog item has a variable set that includes a reference field to the 'cmdb_ci' table. The requirement is to show only 'Server' type CI's in the reference field. Which approach should be used?

Accepted Answer

Set a Reference Qualifier on the variable definition that uses the condition 'sys_class_name=Server'.. A Reference Qualifier on a variable definition allows you to filter the records displayed in a reference field using a condition string. By setting the condition 'sys_class_name=Server', only CI records with that specific sys_class_name will appear, which directly meets the requirement to show only 'Server' type CIs.

Answer

Create a UI Policy that sets the field as read-only and uses a condition to filter.

Answer

Write a Client Script on load that sets the reference qualifier using setRefQual().

Answer

Use a Data Policy to enforce a condition on the field.

Question 5

A company has a requirement that the 'state' field of an incident cannot be changed from 'In Progress' to 'Resolved' if the 'category' field is empty. This validation must be enforced server-side to prevent data integrity issues. Which implementation should be used?

Accepted Answer

Create a 'before' Business Rule that checks if the state is changing to 'Resolved' and if category is empty, aborts the update with an error message.. A 'before' Business Rule executes on the server before the database operation and can call current.setAbortAction(true) to prevent the update when the condition is met. This enforces the validation server-side regardless of client, API, or import path, which is exactly what the requirement demands.

Answer

Make the 'category' field mandatory using a Data Policy.

Answer

Configure an ACL on the 'state' field to deny write access when category is empty.

Answer

Create a Client Script on 'state' change that checks if category is empty and shows an error message.

Question 6

Which TWO are valid ways to create a new application scope in ServiceNow? (Choose two.)

Accepted Answer

Install an update set from an application repository that contains an application scope.. Installing an update set from an application repository that contains an application scope is a standard method to bring a scoped application into an instance. The update set carries the application definition and its scope, and upon commit, ServiceNow creates the application scope automatically if it does not already exist. This is a common approach for distributing scoped applications across instances.

Answer

Use the 'Application Creator' UI page to define a new scope via REST API.

Answer

Import a v1 update set that includes an application definition.

Answer

Navigate to 'All' > 'Scopes' and click 'New'.

Question 7

Which THREE of the following are attributes of a Service Portal widget? (Choose three.)

Accepted Answer

Server Script. Server Script is a core attribute of a Service Portal widget because it runs on the server side when the widget is loaded or when a client-initiated action triggers a server call via the 'server.get' or 'server.update' options. It allows developers to query the database, perform business logic, and return data to the client controller, making it essential for data retrieval and processing within the widget lifecycle.

Answer

CSS Styling

Answer

Business Rule

Question 8

The UI Policy has a 'Reverse if false' checkbox unchecked. When will the UI Policy's actions (such as setting a field mandatory) be applied?

Accepted Answer

When any user accesses a record interactively.. A UI Policy with the 'Reverse if false' checkbox unchecked means that its actions (such as making a field mandatory) are applied only when the UI Policy's condition evaluates to true. UI Policies run on interactive form loads (i.e., when a user accesses a record via the browser). Therefore, when any user interacts with the record and the condition is true, the actions are applied. Options B and C are incorrect because UI Policies do not run for web services or background operations. Option D is incorrect because it unnecessarily restricts the policy to admin users; UI Policies apply to all users based on conditions, not roles.

Answer

When any user accesses a record via any method.

Answer

When a user with the 'admin' role accesses a record via web services.

Answer

When a user with the 'admin' role accesses a record interactively (e.g., via the browser).

Question 9

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?

Accepted Answer

Create a new table that extends directly from sys_db_object. None of the provided options are correct. For a custom table that needs to inherit core system fields (sys_id, sys_created_by, etc.) and support future extensibility, the table should extend from the **Base table** (sys_object). The Base table provides the fundamental record structure and is the recommended starting point for custom tables not tied to specific functionality like tasks or CIs. Extending from sys_db_object (a meta-table for table definitions), cmdb_ci, Task, or cloning Incident all introduce unnecessary overhead or are architecturally incorrect.

Answer

Use the Configuration Item (cmdb_ci) table as a base

Answer

Extend from the Task table

Answer

Clone the Incident table and remove unnecessary fields

Question 10

A developer is designing a solution to allow users to request access to specific applications through a Service Catalog. Each application can be requested by multiple users, and each user can request multiple applications. The request must capture the user's business justification and the date needed. The developer needs to model the data. Which database schema design best adheres to ServiceNow best practices?

Accepted Answer

Create a custom table 'u_application_request' with fields: user (reference to sys_user), application (reference to custom application table), justification (string), date_needed (date). It creates a dedicated 'u_application_request' table with reference fields to both sys_user and the custom application table, plus justification and date_needed fields. This models the many-to-many relationship properly with additional attributes, adhering to ServiceNow best practices of using reference fields for relationships and avoiding unstructured data storage.

Answer

Add a string field on the Application table that stores a comma-separated list of user sys_ids

Answer

Add a multi-reference field on the User table that lists all requested applications

Answer

Create one table for all requests with a reference to both user and application, but store justification and date needed separately in a different table

Question 11

A scoped application includes a script include that is intended to be used by a business rule in the global scope. The script include is marked as 'Client callable: false' and 'Accessible from: This application only'. The business rule cannot call the script include. Which change fixes this?

Accepted Answer

Change 'Accessible from' to 'All application scopes'. The business rule in the global scope cannot access a script include restricted to 'This application only'. Changing 'Accessible from' to 'All application scopes' allows the global-scope business rule to invoke the script include, as cross-scope access is controlled by this property. The 'Client callable' setting is irrelevant for server-side business rules.

Answer

Set the script include name to start with 'global_'

Answer

Move the script include to the global scope

Answer

Set 'Client callable' to true

Question 12

A developer reports that an after business rule on the Change Request table is running twice for each update. The business rule is not scheduled or async. Which is the most likely cause?

Accepted Answer

The business rule script updates the same record, causing a loop. An after business rule that updates the same record it triggered on will cause the business rule to fire again on the subsequent update, creating a recursive loop. Since the rule is not scheduled or async, each update triggers the rule synchronously, and if the script performs a `current.update()` or similar operation on the same table, it re-fires the same business rule, leading to duplicate execution.

Answer

The business rule is set to run 'On Update' and also 'On Insert'

Answer

The business rule order is too high

Answer

The business rule exists in two different scoped applications

Question 13

Which TWO statements about ServiceNow UI Policies are true?

Accepted Answer

UI Policies can set fields as mandatory. UI Policies are client-side scripts that run on the browser to dynamically control form behavior, such as making fields mandatory, visible, or read-only based on conditions. Option B is correct because UI Policies can set the 'mandatory' attribute on a field, forcing users to provide a value before submitting the record.

Answer

UI Policies can enforce data integrity at the database level

Answer

UI Policies cannot be used on catalog items

Answer

UI Policies run on the server side only

Question 14

Which TWO conditions must be met for a Scoped Application to access a table from another scope without using an access grant?

Accepted Answer

The table belongs to the global scope. Tables in the global scope are accessible by default to all scoped applications without requiring an explicit access grant. This is a fundamental rule in ServiceNow's scoping model: global-scope tables are considered shared resources, so any scoped application can read from or write to them as long as the application is installed in the same instance. Option E is also correct because marking a table as 'Allow access to all application scopes' in its application file explicitly overrides the default scope isolation, granting cross-scope access without a grant.

Answer

The application is installed in the same instance as the table

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The table is extended from a table in the consumer application scope

Answer

The table name starts with 'sys_'

Question 15

The business rule above does not set the urgency on new incidents created via web service when the caller's department is IT. What is the most likely reason?

Accepted Answer

The condition uses current.urgency == '' but the field may have a default value of 3. The business rule condition checks if `current.urgency` is an empty string, but the Incident table has a default value of 3 for the urgency field. When a new record is created via web service, the system populates the urgency field with the default value before the business rule runs, so the condition `current.urgency == ''` evaluates to false, and the script never executes to set the urgency.

Answer

The table is not 'Incident' but 'Incident Task'

Answer

The business rule is set to 'before' but web service calls trigger after rules

Answer

The gs.log statement is preventing the script from completing