ServiceNow CAD Exam Flashcards

Q: What do ServiceNow CAD flashcards cover?

These CAD flashcards review scoped application design, tables and fields, access controls, Flow Designer, scripts, testing, update sets, source control, and application lifecycle concepts.

Q: How many questions are on the ServiceNow CAD exam?

Local CAD metadata lists 60 multiple-choice and multiple-select questions with a 90-minute time limit. Always confirm current details in ServiceNow University before scheduling.

Q: What is the ServiceNow CAD retake policy?

Local ServiceNow metadata follows the same retake cadence used for CSA: a 3-day wait before the second attempt, longer waits after later attempts, and a 6-month wait after repeated failures.

Question 1

What is a scoped application?

Accepted Answer

A scoped app is a ServiceNow application with its own namespace and application files. Scope separates app artifacts from global changes and helps control cross-application access.

Question 2

When should you prefer a declarative feature over script?

Accepted Answer

Use a declarative feature when the platform can meet the requirement through configuration, such as UI policies, flows, form settings, or ACLs. Script is for logic that configuration cannot express cleanly.

Question 3

What is App Engine Studio used for?

Accepted Answer

App Engine Studio is a guided workspace for building apps, tables, experiences, logic, and data models with low-code tools. It is useful for creating scoped apps without starting from raw platform lists.

Question 4

Why extend the Task table?

Accepted Answer

Extend Task when the app needs task-like behavior such as assignment, state tracking, activity history, comments, or work notes. Extension reuses platform behavior instead of rebuilding it.

Question 5

What is an application file?

Accepted Answer

An application file is a record that belongs to an app, such as a table, form, business rule, script include, module, flow, or ACL. These files are what get moved, installed, or source-controlled.

Question 6

What do roles provide in ServiceNow?

Accepted Answer

Roles grant permissions and are commonly assigned through groups. They can control navigation visibility, form behavior, and access checks, but data access still depends on ACLs.

Question 7

Why assign a role to a group instead of each user?

Accepted Answer

Group assignment is easier to maintain. Users inherit the role through group membership, so onboarding, offboarding, and access changes happen in one place.

Question 8

What does a table ACL control?

Accepted Answer

A table ACL controls whether a user can perform an operation such as read, create, write, or delete on records in a table. It enforces access even if the user can see a menu or module.

Question 9

What does a field ACL control?

Accepted Answer

A field ACL controls access to a specific field. A user may be able to read the record but still be blocked from seeing or updating sensitive fields.

Question 10

What is the difference between module roles and ACLs?

Accepted Answer

Module roles control whether navigation appears. ACLs control whether the user can access the underlying records or fields. Hiding a module is not a security substitute.

Question 11

What does application access configure?

Accepted Answer

Application access controls how other scopes can interact with an app's tables and artifacts. It helps limit cross-scope reads, writes, creates, deletes, and web service access.

Question 12

Why avoid putting secrets in client scripts?

Accepted Answer

Client scripts run in the browser, so users can inspect them. Sensitive logic, credentials, and privileged checks belong on the server behind ACLs or server-side APIs.

Question 13

What is an application menu?

Accepted Answer

An application menu is the top-level navigation container for an app. It groups modules so users can find the app's records, pages, and tools.

Question 14

What is a module?

Accepted Answer

A module is a navigation link under an application menu. It can open a list, form, URL, report, or other target, often filtered for a specific user workflow.

Question 15

What does a view control on a form or list?

Accepted Answer

A view controls which fields and layout are shown for a form or list. Views tailor the interface for roles, tasks, or contexts without changing the underlying table.

Question 16

When is a UI Policy the best fit?

Accepted Answer

Use a UI Policy for conditional form behavior such as making a field mandatory, read-only, or visible based on field values. It is declarative and avoids unnecessary script.

Question 17

When is a Client Script appropriate?

Accepted Answer

Use a Client Script for browser-side behavior that needs logic beyond a UI Policy, such as dynamic messages or calculations. It should not enforce security or trusted server logic.

Question 18

What is a related list?

Accepted Answer

A related list shows records connected to the current record, usually through a reference or relationship. It helps users review child records or associated activity without leaving the form.

Question 19

What is a dictionary entry?

Accepted Answer

A dictionary entry defines field-level metadata such as field type, label, max length, default value, reference target, and attributes. It shapes how data is stored and displayed.

Question 20

What is a reference field?

Accepted Answer

A reference field stores a link to a record on another table. It supports relationships, dot-walking, display values, and lookups without duplicating the referenced data.

Question 21

What is dot-walking?

Accepted Answer

Dot-walking accesses fields on a referenced record, such as showing a caller's department from an incident. It is useful, but too much dot-walking can make queries and forms slower.

Question 22

When should you use a choice field?

Accepted Answer

Use a choice field when the valid values are a controlled list, such as status or priority. It improves consistency and makes reporting easier.

Question 23

What is a many-to-many table?

Accepted Answer

A many-to-many table links records from two tables when either side can have multiple related records. It avoids forcing repeated data into one record.

Question 24

What is a database view?

Accepted Answer

A database view combines fields from multiple related tables for reporting or read-style access. It is not the same as a form or list view.

Question 25

What is an import set?

Accepted Answer

An import set is a staging table used to load external data before transforming it into target tables. It lets you validate and map data before changing production records.

Question 26

What does a transform map do?

Accepted Answer

A transform map maps fields from an import set to a target table and controls how incoming records are inserted, updated, or ignored.

Question 27

What is coalescing in a transform map?

Accepted Answer

Coalescing identifies whether an incoming row matches an existing target record. If a match is found, the record is updated; otherwise a new record can be inserted.

Question 28

What is a Business Rule?

Accepted Answer

A Business Rule is server-side logic that runs when records are displayed, inserted, updated, deleted, or queried. It is used for trusted automation tied to database activity.

Question 29

When does a before Business Rule run?

Accepted Answer

A before Business Rule runs before the database operation is committed. Use it to validate data or set field values before the record is saved.

Question 30

When does an after Business Rule run?

Accepted Answer

An after Business Rule runs after the record is saved. Use it for logic that depends on the committed record, such as creating related records or starting follow-up work.

Question 31

When should you use an async Business Rule?

Accepted Answer

Use async logic for work that can happen after the user transaction, such as non-urgent integrations or heavy processing. It helps keep the form save responsive.

Question 32

What is a display Business Rule used for?

Accepted Answer

A display Business Rule runs before a form is sent to the browser and can add server-side data to the scratchpad for client scripts.

Question 33

What is Flow Designer best for?

Accepted Answer

Flow Designer automates workflows with triggers, actions, approvals, and integrations. It is a low-code choice for process automation that should be readable by admins and builders.

Question 34

What is an event used for?

Accepted Answer

An event records that something happened and can trigger notifications, scripts, or other processing. Events decouple the trigger from the work that responds to it.

Question 35

What is a notification condition?

Accepted Answer

A notification condition decides when a message should be sent. It keeps emails or alerts tied to the right record events, recipients, and business rules.

Question 36

What is a Script Include?

Accepted Answer

A Script Include stores reusable server-side JavaScript. Use it to centralize logic that multiple business rules, flows, or server scripts need.

Question 37

What is GlideAjax used for?

Accepted Answer

GlideAjax lets client scripts call approved server-side Script Include methods. It is useful when the browser needs server data without exposing server logic.

Question 38

Why avoid duplicate logic across Business Rules?

Accepted Answer

Duplicated logic is hard to test and easy to change inconsistently. Shared behavior should move into a Script Include or reusable flow/action when appropriate.

Question 39

What is an update set?

Accepted Answer

An update set captures configuration changes so they can be moved between instances. It is commonly used for admin and configuration work, not for every type of data record.

Question 40

What should you do before committing an update set?

Accepted Answer

Review captured changes, remove unrelated updates, test the behavior, and make sure dependencies are included. Clean update sets reduce deployment surprises.

Question 41

What is source control used for in a scoped app?

Accepted Answer

Source control stores app files in a Git repository so teams can version, compare, branch, and recover application changes outside the instance.

Question 42

What is the application repository?

Accepted Answer

The application repository is used to publish and install application versions between instances. It supports a managed app lifecycle beyond one development instance.

Question 43

Why version an application before publishing?

Accepted Answer

Versioning creates a clear installable release. It helps downstream instances know what changed and supports rollback, support, and dependency tracking.

Question 44

What is a cross-scope access issue?

Accepted Answer

It occurs when one application scope tries to use a resource from another scope without permission. Resolve it through deliberate application access and cross-scope privilege configuration.

Question 45

What is delegated development?

Accepted Answer

Delegated development grants selected users development permissions for a scoped app without making them full administrators. It supports safer team-based app building.

Question 46

What is the main purpose of testing before deployment?

Accepted Answer

Testing confirms that forms, ACLs, data logic, flows, and integrations work together in the target workflow. It catches scope, dependency, and permission problems before release.

Question 47

What does debugging a Business Rule usually require?

Accepted Answer

Check when it runs, its condition, the target table, the current and previous values, and any script output. Many errors come from timing or conditions, not the script alone.

Question 48

What is the risk of editing directly in production?

Accepted Answer

Direct production edits can bypass testing, capture unrelated changes, and make rollback difficult. CAD work should use a controlled lifecycle through development and test environments.

Question 49

What is the difference between data and configuration?

Accepted Answer

Configuration defines how the app works, such as tables, forms, rules, and flows. Data is the business content stored in those structures, such as user-created requests or records.

Question 50

What should guide the choice between Flow Designer and script?

Accepted Answer

Use Flow Designer for readable process automation and common integrations. Use script when the requirement needs precise server-side logic that low-code actions cannot express well.

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