Microsoft PL-400 Power Platform Developer Exam Dumps and Practice Test Questions Set 5 Q81-100
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Question 81
A developer wants to show only records where the status is “Active” in a canvas app. Which function should they use?
A) Lookup
B) Filter
C) Sort
D) FirstN
Answer: B
Explanation:
The Lookup function is commonly used in Power Apps to find a single record in a table that matches a specific condition. While it is useful when you need to retrieve one record with certain criteria, it does not return multiple records. For instance, if there are ten records with the status “Active,” Lookup would only retrieve the first record that meets this condition and ignore the others. This limitation makes Lookup unsuitable for scenarios where multiple records need to be displayed or filtered.
The Filter function, on the other hand, is specifically designed to evaluate a table and return all records that meet a given condition. In this scenario, you want to show only records with a status of “Active.” Filter scans the table and creates a new set containing every record that satisfies the condition. This makes it ideal for displaying only the desired subset of records in a gallery, form, or table control. It works efficiently even if the table contains a large number of rows and allows chaining with other functions like Sort or Search for more complex logic.
Sort arranges the order of records based on a specified column or expression but does not filter out any records. If you applied Sort to the data, all records would still be present, just in a different order. For example, you could sort a list of cases by creation date, but this would not remove any inactive cases. Therefore, while Sort is helpful for ordering, it cannot be used to enforce a condition like showing only active records.
FirstN returns a fixed number of records starting from the top of a table. It is useful when you want to limit the number of items displayed, such as showing the first 5 or 10 entries. However, FirstN does not apply any filtering condition to the data. Using FirstN in this scenario would only display the first few records regardless of their status, which is not what the requirement asks for.
Because the goal is to show only those records where the status is “Active,” Filter is the correct choice. It provides the necessary condition-based evaluation and can return multiple records dynamically. Lookup, Sort, and FirstN do not satisfy this requirement because they either return a single record, only sort the data, or limit the number of records without applying a condition. Filter ensures that the canvas app accurately presents the desired subset of records.
Question 82
Which Dataverse feature allows developers to implement server-side logic automatically when a record is created or updated?
A) Business Rule
B) Plugin
C) Canvas App Formula
D) Business Process Flow
Answer: B
Explanation:
Business Rules in Dataverse are primarily used to enforce client-side validation or logic without requiring code. They can show error messages, set field values, or make fields required, but they only operate in the user interface where the form is opened. They do not execute automatically on the server when a record is updated via an API, flow, or background process. Therefore, Business Rules cannot implement server-side automation.
Plugins are custom pieces of code written in C# that run on the server in response to specific events, such as creating, updating, or deleting a record. They are registered on table events and execute automatically regardless of how the record was modified, whether through the UI, API, or integration. Plugins are ideal for scenarios where server-side logic is needed to enforce business rules, manipulate data, or integrate with other systems in real time.
Canvas App Formulas are executed within the app itself on the client side. They can manipulate data, validate input, or calculate values dynamically as the user interacts with controls. However, they are not executed on the server and do not trigger automatically when a record changes in Dataverse outside the canvas app. Therefore, they cannot meet the requirement for server-side automatic logic.
Business Process Flows guide users through a sequence of stages in Dataverse and can enforce required fields for each stage. They are useful for standardizing business processes but do not allow custom server-side code execution. They only ensure that users complete specific steps in a process.
Plugins are the only option that reliably executes server-side logic automatically for record events, making them the correct choice for scenarios requiring automation at the server level. Business Rules, Canvas App Formulas, and Business Process Flows do not provide this capability.
Question 83
Which type of column in Dataverse can store a predefined set of options?
A) Text Column
B) Option Set Column
C) Lookup Column
D) Calculated Column
Answer: B
Explanation:
Text Columns allow users to enter any alphanumeric value without restriction. While flexible, they do not enforce consistency, as different users may enter variations of the same concept. This makes Text Columns unsuitable when you want to restrict input to a fixed set of choices, like status values or categories.
Option Set Columns, also known as Choice columns, store a predefined set of selectable options. Each value is associated with a unique numeric identifier and a label, ensuring consistency across all records. This feature allows developers to control the possible values for a field, improving data quality and simplifying reporting. For example, a status field with options “Active,” “Inactive,” and “Pending” can be implemented using an Option Set.
Lookup Columns reference records from another table, enabling relationships between entities. They allow users to select an existing record but do not provide a predefined static list of options within the column itself. Lookup is relational, whereas Option Sets are intended for fixed, enumerated values.
Calculated Columns automatically compute their values based on a formula that can include other columns or functions. They do not store a predefined set of options but derive their value dynamically. Calculated Columns are useful for calculations like totals or ratios, not for enforcing a set of fixed options.
Therefore, Option Set Column is the correct choice when you want to store a predefined set of values. Text, Lookup, and Calculated Columns do not provide the same level of controlled input.
Question 84
Which Power Automate action is used to modify existing data in Dataverse?
A) Create a Record
B) Update a Record
C) Delete a Record
D) Get a Record
Answer: B
Explanation:
Create a Record is used to insert new data into a table. It does not modify existing records, so using it in this scenario would add duplicate or unnecessary data instead of updating what is already present.
Update a Record allows you to modify the values of one or more existing records in Dataverse. You can specify the record either by ID or through conditions, and update one or multiple fields as needed. This action ensures that changes are applied accurately without creating duplicates.
Delete a Record removes a record entirely from the database. While it modifies the dataset in a sense, it does not allow changing field values in existing records. Using Delete would not meet the requirement of updating data but rather removes it entirely.
Get a Record retrieves a record or set of records from Dataverse without making any changes. It is read-only and cannot modify existing data, making it unsuitable for scenarios where updates are required.
Update a Record is the correct choice because it directly modifies existing data while maintaining control over which records and fields are changed. Create, Delete, and Get do not perform the required update operation.
Question 85
Which Power Apps control allows users to select multiple items from a list?
A) Dropdown
B) List Box
C) Text Input
D) Slider
Answer: B
Explanation:
Dropdown controls are one of the most commonly used selection controls in Power Apps. They provide a compact way for users to choose a single option from a list of predefined items. When a user clicks on a dropdown, it expands to show all available options, but only one item can be selected at a time. This makes dropdowns ideal for situations where choices are mutually exclusive and where only a single value is meaningful. However, this very design limitation makes dropdowns unsuitable for scenarios where multiple selections are required, as users cannot select more than one item at once.
List Box controls, in contrast, are designed to allow multiple selections when configured to do so. Unlike dropdowns, list boxes can display several items at once in a scrollable box, and users can select one or more items simultaneously. The selection method often uses checkboxes or a multi-select interface that clearly indicates which items are chosen. This flexibility makes list boxes appropriate for scenarios such as assigning multiple roles to a user, selecting several categories for a product, or choosing multiple interests in a survey. Because the list box can return all selected items as a collection, developers can easily work with this data within formulas or pass it to other functions in Power Apps.
Text Input controls are primarily used for free-form data entry, where users type in text manually. While text inputs provide maximum flexibility in what users can enter, they do not offer a predefined set of items to select from, and they do not support multi-selection in a structured way. Using a text input for multi-selection purposes would require additional logic to parse and validate the user’s input, which adds complexity and increases the likelihood of errors. Therefore, text inputs are not suitable for scenarios where controlled, multi-select lists are needed.
Slider controls are another type of input in Power Apps that allow users to select numeric values within a defined range by dragging a thumb along a track. Sliders are excellent for capturing a single numeric value, such as a rating, quantity, or percentage. However, sliders are inherently limited to continuous or discrete numeric input and do not support selecting multiple items from a list. They cannot be repurposed to act as a multi-select control.
Considering all four options, the list box is the correct control for scenarios requiring multi-selection. It is designed for this exact purpose, providing users with a clear, interactive way to select multiple items from a list. Dropdowns, text inputs, and sliders are either limited to single selections or are not structured for selecting from predefined lists.
Question 86
Which feature allows developers to enforce calculations on fields within a table without user input?
A) Calculated Column
B) Business Rule
C) Power Automate Flow
D) Canvas App Formula
Answer: A
Explanation:
Calculated Column is a Dataverse feature that automatically computes the value of a field based on a formula. Whenever the source fields referenced in the calculation change, the calculated column updates itself without any manual intervention from the user. This ensures data integrity and consistency, as all records maintain the correct computed values at all times. Calculated columns are stored in the database, so the computed values are persistent and can be used in views, reports, and other business logic.
Business Rules, on the other hand, allow developers to apply logic such as showing or hiding fields, setting default values, or validating data on forms. While they can enforce certain rules, they do not persist calculated values in the database. Business Rules primarily act as a form-level or server-level logic layer but are not designed to perform automatic computations that result in stored values for later use in other operations or reporting.
Power Automate Flows enable automation across the Power Platform and external systems. A flow can calculate values, update records, or perform complex automation. However, flows are typically event-driven or scheduled, not continuous per field change. Using flows for field-level calculations adds unnecessary overhead and complexity because they are external to the Dataverse table’s internal mechanics, and they do not automatically update fields in real-time unless specifically triggered by a change.
Canvas App Formulas calculate values within the app interface and can dynamically update field values displayed on the screen. These formulas are excellent for user interactions and in-app calculations. However, they do not persist values in the Dataverse table itself. Once the app session ends, the computed values may no longer be stored unless explicitly written back, making them unsuitable for continuous field-level computation.
Considering all options, the calculated column is the only feature designed to enforce automatic field-level calculations directly within the Dataverse table. It updates in real time, stores results, and eliminates the need for manual intervention or external automation, making it the correct choice for this scenario.
Question 87
Which Dataverse relationship type is used to model self-referencing relationships like a manager reporting hierarchy?
A) One-to-Many
B) Many-to-Many
C) Hierarchical
D) Lookup
Answer: C
Explanation:
One-to-Many relationships define a link between a parent record and multiple child records. This is useful for scenarios like an account with multiple contacts. While it connects records efficiently, it does not inherently allow a table to reference itself for modeling hierarchical structures, such as an employee who reports to another employee within the same table.
Many-to-Many relationships allow multiple records in one table to be associated with multiple records in another table. This is helpful for connecting complex networks of data, such as students enrolled in multiple courses. However, this relationship is not designed to create a hierarchy within a single table and cannot directly model reporting structures.
Hierarchical relationships are specifically designed to allow a table to reference itself. In Dataverse, this is used to model parent-child hierarchies within the same entity, such as an employee-manager relationship. This relationship type enables developers to define reporting structures, traverse the hierarchy, and retrieve related records that reference the same table, making it ideal for organizational charts and managerial hierarchies.
Lookup relationships allow a record in one table to reference a single record in another table. While lookups are powerful for connecting different tables, they do not provide the ability to establish self-referencing hierarchical structures. They are simply pointers to related records. Therefore, for modeling a manager reporting hierarchy within the same table, the hierarchical relationship is the correct choice.
Question 88
Which Power Automate flow type is best for sending weekly summary reports at a fixed time?
A) Instant Flow
B) Automated Flow
C) Scheduled Flow
D) Business Process Flow
Answer: C
Explanation:
Instant Flows are designed to be triggered manually by users, often from a button in Power Automate or a mobile app. They are suitable for tasks that require on-demand execution but are not appropriate for scenarios where automation is required on a regular schedule, such as weekly reporting.
Automated Flows are triggered by events such as the creation or update of a record in Dataverse. These flows respond immediately to changes in data, making them ideal for event-driven processes. However, they are not suited for time-based automation because they depend on external triggers rather than running on a fixed schedule.
Scheduled Flows are explicitly built to execute at predetermined intervals. They can run daily, weekly, monthly, or at custom time schedules. This makes them ideal for sending weekly summary reports, as they ensure consistent execution without manual intervention. Scheduled Flows can include multiple steps, such as gathering data, generating reports, and sending emails, all automatically at the specified time.
Business Process Flows guide users through defined stages of a business process, helping them complete tasks in a structured manner. While they are excellent for workflow standardization, they do not perform scheduled automation or report generation. Therefore, for sending weekly summary reports at a fixed time, a Scheduled Flow is the correct choice.
Question 89
Which property of a canvas app control is used to perform an action when the user clicks a button?
A) OnSelect
B) Visible
C) Text
D) Default
Answer: A
Explanation:
The OnSelect property in a canvas app is used to define actions when a user interacts with a control, such as clicking a button. This property can execute formulas, navigate screens, update variables, or perform any combination of actions, making it central to app interactivity.
Visible determines whether a control is shown or hidden on the screen. While important for UI management, it does not define any action when the control is clicked. Changing visibility is passive and does not respond to user interaction by itself.
Text sets the content displayed on a control, such as a button label or label text. It is purely informational and cannot trigger actions. Modifying the text alone does not result in any computation or workflow execution.
Default sets the initial value of controls such as text inputs or dropdowns. While it controls what the user sees initially, it is not event-driven and does not perform any action on user interaction. Therefore, OnSelect is the correct property for defining what happens when a button is clicked.
Question 90
Which Dataverse feature allows external users to submit data through a secure public-facing interface?
A) Canvas App
B) Model-Driven App
C) Power Apps Portal
D) Solution
Answer: C
Explanation:
Canvas Apps are primarily designed for internal users who have access to Dataverse. They offer a flexible, user-friendly interface but cannot be exposed publicly without authentication. These apps are best for internal productivity scenarios rather than external data collection.
Model-Driven Apps are also built for internal organizational use, focusing on structured processes and data management. They provide rich forms and views but require Dataverse user authentication, making them unsuitable for external users who do not have licenses.
Power Apps Portals are specifically designed to allow external users to securely interact with Dataverse. Portals provide a web interface where users can submit forms, view data, and engage with organizational workflows without needing internal accounts. They support authentication, validation, and security controls, making them ideal for external-facing applications.
Solutions are packages used to transport components between environments. While essential for deployment and versioning, they do not provide user-facing interfaces. Therefore, for external user data submission through a public interface, Power Apps Portal is the correct choice.
Question 91
Which Power Apps function retrieves the first record in a table that matches a condition?
A) Filter
B) Lookup
C) FirstN
D) Patch
Answer: B
Explanation:
The Filter function is designed to evaluate a table and return all records that satisfy a particular condition. While it is extremely useful when you need multiple matching records, it does not automatically return only the first matching record, and additional logic is required to isolate a single record from its results. Filter is ideal for displaying multiple rows, such as a gallery showing all active users, but not for retrieving a single record quickly.
The Lookup function, on the other hand, is explicitly intended to return the first record in a table that matches a specific condition. It scans the table and stops as soon as it finds a record that meets the defined criteria, returning that record. This makes it very efficient when you only need one record, such as fetching a user’s profile based on an ID. Lookup is particularly useful in scenarios where uniqueness is guaranteed or when only a single representative record is required for display or processing.
FirstN is a function that returns the first N records from a table based on position, without evaluating any specific condition. It is useful for pagination or limiting the number of displayed records but does not inherently check field values or other criteria. If the goal is to find a record based on a specific attribute rather than its placement in the table, FirstN will not suffice.
Patch is used to modify an existing record or create a new one in a table. While it is essential for data writing and updating scenarios, it does not retrieve records. Patch works on the assumption that you already know which record to modify or that you are providing new data. It does not have any built-in filtering or lookup capabilities.
Considering these points, Lookup is the correct choice because it is explicitly built to return the first record that meets a condition. It combines the efficiency of stopping at the first match with the precision of evaluating specific criteria, which none of the other options provide in the same context.
Question 92
Which Dataverse feature ensures that a calculated value is automatically updated when source fields change?
A) Business Rule
B) Calculated Column
C) Plugin
D) Canvas App Formula
Answer: B
Explanation:
Business Rules in Dataverse are primarily used to enforce data integrity, perform validations, or apply simple logic such as showing or hiding fields based on conditions. They do not store calculated results directly in the table and, therefore, cannot automatically update a value based on other field changes. Business Rules are more about enforcing behavior rather than persisting computations.
Calculated Columns are designed to store computed values in Dataverse tables. They automatically update whenever the source fields referenced in their formulas change. This ensures that any dependent logic or reporting always works with current data. Calculated Columns are ideal for scenarios like computing discounts, age, or other derived metrics that must remain consistent in the database without additional manual updates.
Plugins can execute complex business logic during Dataverse operations such as create, update, or delete. While they can calculate values, they require custom coding, deployment, and maintenance. They also introduce overhead and complexity compared to the declarative nature of Calculated Columns. Plugins are better suited for advanced logic that cannot be handled with built-in features.
Canvas App Formulas calculate values within the app at runtime. While they provide dynamic updates for UI controls, these calculations are not stored in Dataverse tables and are only visible while the app is running. They do not persist or propagate changes automatically across other apps or reports.
Therefore, the correct choice is Calculated Column, because it is declarative, automatically updated by Dataverse whenever source fields change, and stored persistently in the table for consistent use across all apps and flows.
Question 93
Which feature allows developers to validate a phone number format before saving a record in Dataverse?
A) Business Rule
B) Calculated Column
C) Canvas App Formula
D) Power Automate Flow
Answer: A
Explanation:
Business Rules are the primary mechanism for enforcing validation directly at the Dataverse table level. They can check formats, required values, or ranges before allowing a record to be saved. For phone numbers, a Business Rule can verify that the input matches a specific pattern, preventing invalid data from ever being stored. This ensures data integrity across all applications accessing the table.
Calculated Columns, while capable of computing values based on other fields, do not perform validations on input. They cannot stop a record from being saved with incorrect data; they only provide derived computations based on what is already in the record. Therefore, they are not suitable for enforcing input standards.
Canvas App Formulas can validate data while users are interacting with the app, such as showing error messages or disabling a save button for incorrect formats. However, these validations exist only within the app. Other interfaces, integrations, or flows can still bypass these checks, making them insufficient for enterprise-wide enforcement.
Power Automate Flows can perform post-save validation or corrective actions, such as updating or notifying about incorrect values. However, they do not prevent invalid data from being initially saved, so they cannot replace pre-save validation mechanisms.
Hence, Business Rule is the correct option because it directly enforces validation at the table level, preventing invalid data from entering the system across all access points.
Question 94
Which connector allows Power Automate to access on-premises data securely?
A) Standard Connector
B) Premium Connector
C) Gateway Connector
D) Custom Connector
Answer: C
Explanation:
Standard Connectors are prebuilt connectors to widely used cloud services such as SharePoint, Outlook, or OneDrive. While easy to use, they cannot access on-premises data directly because they operate only in the cloud environment.
Premium Connectors offer access to advanced cloud services or SaaS platforms requiring additional licensing. They provide more functionality than standard connectors but still do not natively bridge on-premises systems without additional infrastructure.
Gateway Connector establishes a secure connection between on-premises data sources, such as SQL Server or local file shares, and Power Automate in the cloud. It acts as a bridge, encrypting data traffic and enabling flows to query or update internal systems without exposing them directly to the internet. This makes it the preferred solution for secure hybrid scenarios.
Custom Connectors allow integration with external APIs by defining custom requests and responses. While they can access external systems, on-premises integration still requires a gateway or direct exposure of internal endpoints, making them less secure or straightforward than using a Gateway Connector.
Therefore, the Gateway Connector is the correct choice because it provides a secure and supported way to connect on-premises data sources to cloud-based Power Automate flows.
Question 95
Which type of Power Automate flow runs when a user clicks a button in a canvas app?
A) Instant Flow
B) Automated Flow
C) Scheduled Flow
D) Business Process Flow
Answer: A
Explanation:
Instant Flows in Power Automate are specifically designed to be triggered manually by a user or through a direct action, such as pressing a button in a canvas app. This type of flow allows immediate execution of the defined automation, which is particularly useful in scenarios where user initiation is required. For example, a user might need to generate a report, send a notification, or update a record instantly. The manual trigger ensures that the flow only runs when explicitly invoked, giving the user full control over when the process executes. Instant Flows can also be triggered through mobile apps, buttons in Power Apps, or even via the Power Automate portal, making them highly versatile for interactive scenarios.
Automated Flows, in contrast, run in response to predefined events in connected systems. These events could include the creation or modification of a record in Dataverse, receiving an email in Outlook, or a new file being added to SharePoint. Automated Flows are excellent for background processes that need to happen consistently without requiring user intervention. However, they are not suitable for scenarios where the action must occur at the exact moment a user decides to trigger it. Because they rely on event detection, Automated Flows cannot be directly initiated by a button click in a canvas app, making them unsuitable for real-time, user-driven interactions.
Scheduled Flows operate on a timer or schedule, executing at fixed intervals such as hourly, daily, or weekly. These flows are designed for batch operations or recurring tasks, like sending summary reports, performing data cleanup, or syncing records between systems on a regular basis. While they are extremely useful for repetitive, time-based tasks, they do not respond to user actions in real time. This makes them inappropriate for use cases where immediate execution is needed based on a user’s interaction, such as clicking a button in an app to trigger an instant workflow.
Business Process Flows are a different type of automation that guide users through defined business stages or steps. They are focused on ensuring that users complete necessary actions in a specific order, such as in sales opportunities or service cases. Although they provide structure and enforcement of process rules, they do not directly execute automated tasks in response to a button click. Their purpose is more about user guidance and compliance than triggering actions or updates automatically.
Considering all these points, Instant Flow is the correct choice for scenarios requiring a flow to run when a user clicks a button in a canvas app. Its design for manual initiation ensures immediate execution of logic, providing a seamless interactive experience, while Automated, Scheduled, and Business Process Flows do not support direct, user-driven triggers in this context.
Question 96
Which property controls whether a field is required on a canvas app form?
A) Default
B) Required
C) Text
D) OnSelect
Answer: B
Explanation:
The Default property in Power Apps is used to specify the initial value that a field or control should display when the form is first loaded. This could be a predefined value, a calculated result, or an empty state. While Default helps in providing initial data to a form, it does not enforce any rules on whether the user must fill in that field before submission. It merely defines what the field will show when the user first encounters it.
The Required property, on the other hand, directly determines whether a field must be filled in before the form can be submitted. Setting a field to Required ensures that the app validates the input and prevents submission if the field is empty. This is critical for enforcing data integrity and ensuring that essential information is always captured from the user. It is a core property for controlling mandatory data entry in forms.
The Text property is used to control the display value of a text-based control. It determines what the user sees in the input field or label and can be used for formatting or binding to a data source. However, Text does not influence whether a field is required or optional; it only affects presentation and what is visible to the user.
OnSelect is a property used primarily with interactive controls like buttons, icons, or images. It defines the action or behavior that occurs when the user clicks or taps the control. While OnSelect can trigger form submission or validation, it is not the property that directly controls the mandatory nature of a field.
Considering all the options, Required is the only property that explicitly enforces a rule for mandatory data entry. Default only initializes the field, Text controls display, and OnSelect triggers actions but does not mandate input. Therefore, Required is the correct answer.
Question 97
Which Dataverse feature allows multiple users to share and work on the same records securely?
A) Security Role
B) Row-Level Security
C) Field Security
D) Business Process Flow
Answer: B
Explanation:
Security Roles in Dataverse define the privileges a user has at the table or entity level. They determine whether a user can create, read, update, or delete records across tables, but they do not provide fine-grained control over specific individual records. While essential for overall access management, Security Roles alone cannot manage secure sharing of particular records among multiple users.
Row-Level Security enables more granular access by allowing administrators to define who can access which records. This can be based on ownership or team membership. With Row-Level Security, multiple users can collaborate on the same dataset without risking unauthorized access, as permissions are controlled at the record level. This feature is essential for organizations where teams share records but still need to restrict access to sensitive information.
Field Security is used to restrict access to specific columns or fields within a table. It ensures that sensitive information, such as financial or personal data, is protected. However, Field Security only limits access to certain fields, not entire records. It does not facilitate secure sharing of records among multiple users, so it is not the correct choice for this scenario.
Business Process Flows provide guidance for users by defining stages and steps in a business process. They help ensure consistent execution of tasks but do not provide record-level security. While they improve workflow management, they cannot control who has access to shared records.
Considering the options, only Row-Level Security allows multiple users to securely share and work on the same records while enforcing access control based on ownership or team membership. This makes it the correct answer.
Question 98
Which Power Apps control is used to display tabular data from a data source?
A) Data Table
B) Label
C) Slider
D) Text Input
Answer: A
Explanation:
The Data Table control is specifically designed to display information in a structured, tabular format, showing multiple rows and columns of data from a connected data source. It supports sorting and filtering, and users can easily scan and compare data. This makes it ideal for displaying datasets in a grid-like interface.
The Label control is used for showing static text or dynamic text from a data source. It is not designed to display multiple rows or columns of data and therefore is unsuitable for tabular representation. Labels are better suited for headings, field labels, or descriptive text.
The Slider control allows users to select numeric values within a defined range by moving a handle along a track. While interactive and useful for inputting numeric data, it is unrelated to displaying rows of data from a source. It focuses on single-value input rather than data presentation.
Text Input controls enable users to type in custom text manually. They are useful for capturing information but do not provide the ability to display multiple records or tabular data. Therefore, they cannot replace a Data Table when presenting structured datasets.
Among these options, the Data Table is the only control that can represent multiple rows and columns from a data source. Label, Slider, and Text Input serve different purposes related to displaying text or capturing input, not presenting structured data.
Question 99
Which feature allows developers to package apps, flows, and tables for deployment across environments?
A) Canvas App
B) Model-Driven App
C) Solution
D) Power BI Dashboard
Answer: C
Explanation:
Canvas Apps are standalone applications designed for user interaction. They can be exported and imported individually but do not inherently include related components such as flows, tables, or plugins. Deployment of multiple artifacts requires manual bundling outside of a solution, limiting their usefulness for comprehensive environment migration.
Model-Driven Apps are similar in that they focus on user interface design driven by Dataverse data. While they can be exported individually, they also lack a mechanism to package related components like flows, tables, and custom connectors in a single deployable unit.
Solutions act as containers that can include multiple components such as apps, tables, flows, dashboards, plugins, and more. By packaging these together, developers can move an entire set of functionality from a development environment to a test or production environment seamlessly. Solutions provide versioning, dependency management, and the ability to maintain updates, making them essential for enterprise deployments.
Power BI Dashboards focus on data visualization and reporting. They do not package apps, flows, or Dataverse tables and cannot be used for deploying functional components across environments.
Considering these factors, Solutions are the only option that provides a complete deployment mechanism for multiple components, making it the correct choice.
Question 100
Which function in Power Apps updates specific fields in a record or creates it if it doesn’t exist?
A) Patch
B) Collect
C) Lookup
D) Clear
Answer: A
Explanation:
Patch is one of the most versatile and widely used functions in Power Apps. Its primary purpose is to allow developers to modify one or more fields within an existing record in a data source. Unlike functions that overwrite an entire record or collection, Patch enables targeted updates, meaning you can change specific columns without affecting other data in the record. This precision is crucial in applications where data integrity is important, and unintentional overwrites could cause errors or loss of information. Additionally, Patch can handle both single-record and multi-record updates depending on the scenario, providing flexibility for various application needs.
One of the standout features of Patch is its ability to create a new record if the specified record does not already exist in the data source. This makes it a hybrid function that can perform both update and create operations seamlessly. Developers can use conditional logic with Patch to determine whether a record should be updated or created, simplifying workflows that require dynamic handling of user inputs or system-generated data. This capability distinguishes Patch from other functions that are limited strictly to either creation or retrieval.
In comparison, the Collect function is used to add new records to a collection or a data source, but it does not allow selective updates of existing records. Collect is ideal when you need to insert bulk data or append new items to an existing collection, but it lacks the precision and versatility that Patch provides. Using Collect to modify existing records would require additional steps, such as clearing and repopulating data, which can be inefficient and error-prone.
The Lookup function, on the other hand, is primarily used to retrieve a single record from a data source that matches a specific condition. While Lookup is useful for querying and finding records, it does not modify or create data. Its role is purely for data retrieval, making it unsuitable for tasks that require updates or inserts. Similarly, the Clear function is designed to remove all records from a collection. It is helpful for resetting in-memory data structures but does not interact with the data source to modify or create records, making it unrelated to the functionality that Patch provides.
Considering all these options, Patch is the only function that combines both updating existing records and creating new ones when necessary. Its flexibility, precision, and dual functionality make it essential for developers who need to manage data dynamically within Power Apps. Collect, Lookup, and Clear serve different purposes and cannot replace Patch when it comes to targeted updates and conditional creation of records.
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