SNOW-CAD Application development using ServiceNow Studio Practice Test 3 — 15 Questions

Question 1

When creating a business rule in Studio, a developer wants the rule to run only when the state field changes from 'New' to 'Work in Progress'. Which condition should be used?

Accepted Answer

current.state.changesTo('Work in Progress'). ChangesTo('Work in Progress') triggers when the field changes to that specific value. Option A triggers on any change, B triggers when changing from a value, and D checks current and previous values incorrectly.

Answer

current.state.changesFrom('New')

Answer

current.state == 'New' && previous.state == 'Work in Progress'

Answer

current.state.changes()

Question 2

A developer needs to debug an issue where a client script is not triggering when a field changes. What is the most efficient first step in troubleshooting within Studio?

Accepted Answer

Open the client script in Studio and use the 'Debug' button.. Studio includes a debug feature for client scripts that allows step-by-step execution and inspection. Option A is indirect, C is not relevant to client script execution, and D is server-side.

Answer

Review the syslog for error messages.

Answer

Check the ACLs on the table.

Answer

Add a gs.log() statement to the server-side code.

Question 3

A developer has created a custom application and wants to ensure that all changes are captured in an update set for migration. Which practice should be followed?

Accepted Answer

Use the 'Export to Update Set' feature in Studio.. In ServiceNow Studio, the 'Export to Update Set' feature allows developers to capture all changes made to an application and package them into an update set XML for migration. Option A is incorrect because setting an application to 'Published' does not automatically create update sets. Option B is incorrect because the 'Update Sets' module manages existing update sets, not capturing application changes. Option D is incorrect because manually copying changes is error-prone and not a practice for migration.

Answer

Set the application to 'Published' to automatically create update sets.

Answer

Use the 'Update Sets' module to capture all changes from the application.

Answer

Manually copy changes to another instance.

Question 4

In ServiceNow Studio, when developing a flow that requires a decision based on a record's category, which component should be used?

Accepted Answer

Condition. A Condition component is used to evaluate criteria and branch the flow. Action performs operations, Trigger initiates the flow, and Flow Logic is not a component.

Answer

Action

Answer

Flow Logic

Answer

Trigger

Question 5

A developer wants to create a new UI action that appears on the form only when the record is in a specific state. Which property should be configured?

Accepted Answer

Script condition. The 'Script condition' property allows writing a script to determine visibility based on the record's state, such as checking if the state field equals a particular value. Option B, the 'Condition field', is used for simple condition comparisons but cannot evaluate state without additional scripting. Options C and D are unrelated to visibility logic.

Answer

Condition field

Answer

Form context menu

Answer

Insert field

Question 6

A developer is creating a Scheduled Job in Studio that needs to run every hour. Which type of trigger should be selected?

Accepted Answer

Interval. (Interval) is correct because an Interval trigger allows you to specify a repeat interval, such as every 60 minutes, which meets the requirement to run every hour. Option A (Date) runs once at a specific date/time. Option B (Run once) runs a single time. Option D (Daily) runs once per day.

Answer

Date

Answer

Run once

Answer

Daily

Question 7

When building a custom application using ServiceNow Studio, which of the following is NOT a recommended practice for version control?

Accepted Answer

Directly edit system tables outside of the application scope.. Directly editing system tables outside of the application scope bypasses version control and can cause conflicts, making it not a recommended practice. Options A, B, and C are all recommended practices for version control in ServiceNow Studio.

Answer

Create a new application version for each major release.

Answer

Track changes using update sets.

Answer

Use application scope to isolate changes.

Question 8

A developer needs to implement a server-side validation that prevents update to a record if a related record's status is 'Closed'. Where should this logic be placed?

Accepted Answer

Business rule. A business rule runs server-side when a record is updated and can enforce the validation before the update occurs. Client scripts and UI policies are client-side and can be bypassed. ACLs are for access control, not validation.

Answer

ACL

Answer

Client script

Answer

UI policy

Question 9

A developer is troubleshooting an issue where a business rule is not firing. Which TWO steps should the developer take to diagnose the problem? (Choose two.)

Accepted Answer

Ensure the business rule has a condition.. Options B and D are correct. To diagnose why a business rule is not firing, the developer should first verify that the business rule is active (D) and ensure it has a condition that evaluates to true (B). Checking the order (A) is only relevant when multiple business rules conflict, not a primary diagnostic step. Business rules cannot be run manually (C is incorrect), and table locking (E) is not related to business rule execution.

Answer

Check the business rule order.

Answer

Run the business rule from the context menu.

Answer

Check if the table is locked.

Question 10

In ServiceNow Studio, which TWO elements can be created directly from the 'Create Application File' wizard? (Choose two.)

Accepted Answer

Table. The correct answers are D (Table) and E (Business Rule). In ServiceNow Studio, the 'Create Application File' wizard allows creation of various application files such as Tables, Business Rules, Client Scripts, etc. Update Sets (C) are not created as application files; they are containers for changes. System Properties (B) are created via the sys_properties module. Flows (A) are created in Flow Designer, not directly from the 'Create Application File' wizard. Therefore, only Tables and Business Rules are among the options that can be created directly via that wizard.

Answer

Flow

Answer

System Property

Answer

Update Set

Question 11

A developer is creating an application in ServiceNow Studio and needs to ensure that all new records created in a custom table are automatically assigned a number. Which THREE methods can be used to achieve this? (Choose three.)

Accepted Answer

Use a default value on the number field.. Options A, B, and E are correct. A default value on the number field will automatically assign a number to new records. A flow with a create record action can set the number during record creation. A business rule with a script can also assign a number on insert. Option C (database view) is incorrect because database views do not generate numbers; they are virtual tables that display data. Option D (client script) is unreliable as it runs client-side and can be bypassed, so it is not suitable for ensuring automatic numbering.

Answer

Use a database view to generate numbers.

Answer

Use a client script to set the number on load.

Question 12

Refer to the exhibit. What is the primary issue with this script if it is intended to update all incidents in state 'New' (state=1) to priority 2?

Accepted Answer

The script will cause an infinite loop.. The primary issue is that calling gr.update() inside the while loop on the same GlideRecord object causes an infinite loop. When a business rule or trigger runs on update and re-queries the same set of records, gr.next() may keep returning true as newly updated records might still satisfy the query condition. Option A is incorrect because setValue syntax is correct. Option B is incorrect as next() iterates correctly. Option D is a possible secondary effect but not the primary issue.

Answer

The script will not update any records because of a syntax error in setValue.

Answer

The script will update only the first record because next() is used incorrectly.

Answer

The script will update records but may cause performance issues.

Question 13

Refer to the exhibit. The above JSON represents an application manifest generated by Studio. What does the dependency on 'global' with version '>=3.0.0' indicate?

Accepted Answer

The application must be installed on an instance with ServiceNow version 3.0.0 or later.. In ServiceNow application manifests, a dependency on 'global' refers to the platform version (ServiceNow release). It means the application requires the instance to be at least version 3.0.0. Option A confuses update sets, C misinterprets scope, and D is incorrect.

Answer

The application requires an update set from global scope.

Answer

The application depends on another application with scope 'global' that must be at least version 3.0.0.

Answer

The application's global update set must be at version 3.0.0.

Question 14

Refer to the exhibit. What does this script do?

Accepted Answer

Updates the state of incident INC001234 to 2.. The script retrieves the incident with number 'INC001234' using `get('number', 'INC001234')`, which returns a GlideRecord object. The `get` method returns true if the record exists and loads it into memory. Setting `state` to 2 (which corresponds to 'In Progress' or a similar value) modifies the record, and `update()` commits the change to the database. Option A is incorrect because `get` returns true if the record is found, so it does do something. Option C would require using `insert()` after setting values, but not `get`. Option D would require `deleteRecord()`, not `update()`.

Answer

Does nothing because get returns false.

Answer

Creates a new incident.

Answer

Deletes the incident.

Question 15

A developer needs to expose a custom table's data via REST API in ServiceNow Studio. Which approach should they use?

Accepted Answer

Create a Scripted REST API in Studio.. The correct approach is to create a Scripted REST API in Studio (Option B). Studio provides a dedicated module for building custom REST APIs that can expose table data. Option A is incorrect because the system Web Services menu is not part of Studio and is used for configuring base REST APIs, not custom ones. Option C is wrong because generating an API from the Application Menu is not a standard Studio feature. Option D is incorrect because the table API requires additional configuration (ACLs) and is not directly accessible without setting up an endpoint.

Answer

Configure a REST API from the system Web Services menu.

Answer

Generate an API from the Application Menu.

Answer

Use the table API directly without any configuration.