SNOW-CAD Practice Test 20 — 15 Questions

Question 1

Which TWO of the following are valid types of client scripts in ServiceNow? (Choose two.)

Accepted Answer

onSubmit. In ServiceNow, the valid client script types are onChange, onSubmit, onLoad, and onCellEdit. Among the given options, onSubmit (B) and onChange (C) are standard client script types. onDelete, onClick, and onUpdate are not valid client script types in ServiceNow.

Answer

onDelete

Answer

onClick

Answer

onUpdate

Question 2

A developer encounters the following error when a scheduled job executes. The job queries the 'u_my_table' table. What is the most likely cause?

Accepted Answer

The field u_extra_field was recently deleted from the table.. The error occurs because the scheduled job references the field 'u_extra_field' in its query against the 'u_my_table' table. When that field is deleted from the table definition, any script or job that attempts to read or write to that field will fail with a 'column not found' or similar database error. This is the most direct cause among the options, as the job was previously working and the error appeared after a schema change.

Answer

The table name is misspelled in the script.

Answer

The script include has a syntax error.

Answer

The field u_extra_field exists but is not indexed.

Question 3

Which TWO statements are true about GlideAggregate?

Accepted Answer

It provides methods like addAggregate and getAggregate.. Options C and D are correct. GlideAggregate extends the GlideRecord class (D) and provides methods like addAggregate and getAggregate (C) for performing aggregate queries on database tables. Option A is incorrect because getRowCount() is a method of GlideRecord, not the primary method for retrieving counts; GlideAggregate uses addAggregate('COUNT', 'field') and getAggregate() instead. Option B is incorrect because GlideAggregate can be used with any field, not just sys_id. Option E is incorrect because GlideAggregate works on a single table per query; to aggregate across multiple tables, you would need separate queries or database views.

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 4

A developer wants to restrict the values in a choice field based on the value of another field on the same record. Which tool should be used?

Accepted Answer

UI policy with 'Choice' action set to 'Set choices' conditionally.. A UI policy can conditionally set the choices of a choice field on the client side using the 'Choice' action with 'Set choices' conditionally. This allows dynamic filtering of choice values based on other field values on the same record. Option A (data policy) is server-side and cannot dynamically change client-side choices. Option C (reference qualifier) applies only to reference fields, not choice fields. Option D (client script) can hide or show options but is not the standard declarative approach; UI policy is preferred for this requirement.

Answer

Data policy with conditions.

Answer

Reference qualifier on the choice field.

Answer

Client script that hides or shows options.

Question 5

A developer is investigating why an outbound REST message is not sending data correctly. Which TWO actions should the developer check first? (Choose two.)

Accepted Answer

Check the authentication profile.. The most immediate checks are the endpoint URL to ensure it is correct, and the authentication profile to ensure credentials are valid. These are common causes of failures.

Answer

Restart the web server.

Answer

Reinstall the ServiceNow instance.

Answer

Review the script include for errors.

Question 6

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 7

Refer to the exhibit. What does this ACL condition allow?

Accepted Answer

Users with 'itil' role can update incidents in state 'On Hold'.. The ACL condition grants update access when the user has the 'itil' role and the incident state is '3', which is 'On Hold'. Option A is incorrect because it ignores the role requirement. Option B is wrong because it says users without 'itil' role can update, but the ACL requires the 'itil' role. Option C is wrong because state '3' is 'On Hold', not 'Resolved'.

Answer

Any user can update incidents when state is '3'.

Answer

Only users without 'itil' role can update incidents in state '3'.

Answer

Users with 'itil' role can update incidents in state 'Resolved'.

Question 8

A developer needs to ensure that when a Configuration Item record is deleted, all related Incident records have their CI field set to empty. Which approach should be taken?

Accepted Answer

Create a business rule on the CI table that updates incidents on delete.. A business rule on the CI table with a 'before delete' or 'after delete' condition can query all incident records referencing the deleted CI and set the CI field to empty/null. Option A ('cascade') would delete the related incidents instead of clearing the CI field. Option B (workflow) is unnecessarily complex; a business rule is more efficient and direct. Option D (database trigger) is not supported in ServiceNow.

Answer

Set the reference field's 'Delete action' to 'Cascade'.

Answer

Use a workflow on the CI table to update related incidents.

Answer

Use a database trigger on the CI table.

Question 9

An admin created a new table 'u_custom_asset' with a reference field to 'cmdb_ci'. After creating a form, users report that when they select a CI, additional fields do not auto-populate as expected. What is the most likely cause?

Accepted Answer

The reference field lacks a reference qualifier or default value configuration for auto-population.. Reference fields on custom tables do not auto-populate other fields unless configured with a reference qualifier or default value. ACLs (B) would block read access, not auto-population. A business rule (C) is not necessary for basic auto-population. The cmdb_ci table (D) can be referenced from custom tables.

Answer

ACLs are blocking the read operation on the cmdb_ci table.

Answer

A business rule is missing on the reference field to trigger auto-population.

Answer

The cmdb_ci table is a system table and cannot be referenced from custom tables.

Question 10

A developer writes a script to display the department name of the caller on a custom form. The script uses: gs.getUser().getDepartment().getName(). However, the script throws a null pointer exception for some users. Which is the most likely cause and solution?

Accepted Answer

Some users do not have a department assigned, and the script does not check for null. The NullPointerException suggests that getDepartment() returned null for users without a department. Option A is wrong because the script is syntactically correct. Option B is wrong because reference exists. Option C is wrong because department records exist.

Answer

The Department table is empty

Answer

The script uses incorrect dot-walking syntax; use getValue('department') instead

Answer

The user table does not have a department reference field

Question 11

A ServiceNow administrator is designing a new catalog item for hardware requests. The item should allow users to select a cost center from a list of available options, but only those cost centers the user is authorized to use. Which TWO approaches should the administrator use to implement this requirement?

Accepted Answer

Create a reference field on the Cost Center table and apply a reference qualifier that filters based on the user's authorization.. A reference field on the Cost Center table with a reference qualifier can dynamically filter the available cost centers based on the current user's authorization, using a condition like 'authorized_usersLIKEjavascript:gs.getUserID()'. This approach leverages native platform capabilities without requiring client-side scripts or custom population logic, ensuring security and maintainability.

Answer

Define a variable with a reference qualifier using a local variable that is populated by a catalog client script.

Answer

Use a 'Select Box' variable type and populate it via a script that queries the cost center table filtering by user.

Answer

Use a 'Lookup Select Box' variable type and set the option list to a script that returns authorized cost centers.

Question 12

A developer is configuring an approval flow for a catalog item. When a user submits a request, an approval record is created with a single approver. The approver must be the user's manager. Which is the correct way to set the approver?

Accepted Answer

In the catalog item, write an 'Approval script' that sets the approver to the submitted by user's manager using current.approver = current.caller_id.manager. It uses an approval script to dynamically set the approver to the manager of the request's caller. The script `current.approver = current.caller_id.manager` directly assigns the manager field from the user record of the caller, which is the standard way to implement a manager-based approval in ServiceNow. This approach is flexible and avoids hardcoding a specific user or group.

Answer

In the catalog item, set 'Approval type' to 'Single' and select a specific user

Answer

Use an Approval - User rule with condition that the approver is the manager

Answer

In the catalog item, set 'Approval type' to 'Group' and select the manager's group

Question 13

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

Accepted Answer

Source table (import set table). The correct answers are C, D, and E. A Transform Map requires a Source table (the import set table), Field mappings to define how data is mapped, and a Target table where the data is imported. Condition scripts (A) are optional, and the Data source (B) is configured separately before the Transform Map.

Answer

Condition script

Answer

Data source

Question 14

An admin notices that a business rule on the 'incident' table that sets the 'assigned_to' field based on the caller's manager is not always firing. The rule is set to run 'Before' and 'Update'. What is the most likely reason?

Accepted Answer

The condition of the business rule is not met because it requires a specific field to change.. Business rules with conditions only fire when the condition is met. If the condition requires a specific field to change (e.g., 'assigned_to' or a related field), but the update does not include that field, the rule will not trigger. Option B is incorrect: asynchronous execution would still cause the rule to run, just not immediately. Option C is incorrect: ACLs control access to records, not business rule execution. Option D is incorrect: order 100 is the default and does not prevent firing; it only affects execution order among multiple rules.

Answer

The business rule is set to run asynchronously.

Answer

The user lacks the 'incident_edit' ACL.

Answer

The business rule order is set to 100, making it run too late.

Question 15

Which THREE are true about Data Policies? (Choose three.)

Accepted Answer

They can be used to enforce field requirements.. The correct answers are A, B, and D. Data Policies enforce field requirements (mandatory/read-only) on the server side, can reference current record values using conditions, and can be restricted to specific user roles via the 'Roles' condition. They do not run on the client side only; they execute server-side. They can fire on both insert and update, not just insert.

Answer

They can fire on insert only.

Answer

They run on the client side only.