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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Logic and Process Automation | 40% | - Governor limits and best practices - Platform events and publish-subscribe model - Asynchronous Apex: batch, queueable, future, scheduled - Apex classes, triggers, and methods - Process Builder, Flow, and approval processes |
| Topic 2: User Interface | 23% | - Visualforce pages, controllers and extensions - Lightning Web Components (LWC) architecture and development - UI security and accessibility - Integration with Lightning App Builder and Experience Cloud - Component communication and events |
| Topic 3: Salesforce Fundamentals | 7% | - Declarative development capabilities - Multi-tenant architecture and platform limits - Security model, profiles, permission sets and sharing |
| Topic 4: Data Modeling and Management | 13% | - Data operations, import/export and data management - Object relationships, fields, and schema design - SOQL and SOSL query construction and optimization |
| Topic 5: Testing, Debugging and Deployment | 17% | - Debugging tools: Developer Console, logs, checkpoints - Deployment tools: Salesforce DX, CLI, change sets - Unit test creation, code coverage requirements - Development environments and sandboxes |
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NEW QUESTION # 125
Which two actions may cause triggers to fire?
Answer: A,D
Explanation:
Answers A, D are correct. Apex triggers run as part of the Salesforce save transaction and must be designed around the order of execution, valid context variables, recursion risk, and bulk processing. Correct trigger design keeps logic in handlers, avoids SOQL and DML inside record loops, uses addError() when validation must block the transaction, and expects declarative automation to participate in the same transaction. The other options either use the wrong platform feature, apply at the wrong layer, or ignore a key Salesforce constraint. For Platform Developer I, the important point is not just syntax; it is choosing the feature that aligns with transaction behavior, security enforcement, maintainability, and supported metadata capabilities.
Reference focus: Salesforce Apex Developer Guide, SOQL and SOSL Reference, Flow Builder Help, and Apex Reference Guide. This distinction is important in production orgs because small design mistakes can create deployment failures, runtime exceptions, data-quality defects, or user-visible security gaps once automation is executed in bulk or from multiple entry points.
NEW QUESTION # 126
What are two ways a developer can get the status of an enqueued job for a class that implements the queueable interface?
Choose 2 answers
Answer: A,B
Explanation:
* Apex Jobs Page:
* Provides a user-friendly interface to view the status and details of enqueued jobs, including those implementing theQueueableinterface.
* AsyncApexJob Object:
* TheAsyncApexJobobject stores information about queued Apex jobs.
* Developers can query this object for job details likeStatus,JobType, etc.
Example SOQL Query:SELECT Id, Status, JobType, CreatedDate
FROM AsyncApexJob
WHERE JobType = 'Queueable'
* Why Not Other Options?
* A. Apex Status page: Not a relevant Salesforce feature.
* D. Apex Flex Queue: Only applicable to Batch Apex jobs, not Queueable jobs.
References:AsyncApexJob:https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_objects_asyncapexjob.htm
NEW QUESTION # 127
Refer to the component code requirements below:
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12">{!v.account.AccountNumber}</lightning:layoutItem>
<lightning:layoutItem size="12">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
Requirements:
* For mobile devices, the information should display in three rows.
* For desktops and tablets, the information should display in a single row.
Requirement 2 is not displaying as desired.
Which option has the correct component code to meet the requirements for desktops and tablets?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
To determine the correct component code to meet the requirements for desktops and tablets, we need to analyze the behavior of the <lightning:layout> and <lightning:layoutItem> components in Salesforce Lightning, focusing on their responsive design attributes. Let's break11:51 PM BST on Friday, May 30, 2025, break down the problem and evaluate each option systematically, referencing Salesforce's official documentation.
Understanding the Requirements and Components:
* Components: The code uses <lightning:layout> and <lightning:layoutItem>, which are part of the Salesforce Lightning Design System (SLDS) grid system for building responsive layouts in Aura components.
* Requirements Breakdown:
* Mobile Devices: The information (Name, AccountNumber, Industry) should display in three rows.
* Desktops and Tablets: The information should display in a single row.
* Current Issue: The provided code has multipleRows="true", which forces each <lightning:layoutItem> to start on a new row, regardless of device size. This satisfies the mobile requirement (three rows), but fails the desktop/tablet requirement (single row).
* Responsive Grid: The SLDS grid system uses a 12-column layout. The <lightning:layoutItem> component supports attributes like size (for small devices, e.g., mobile), mediumDeviceSize (for tablets), and largeDeviceSize (for desktops) to control column widths across device sizes. The Lightning Design System documentation states: "The grid system allows you to specify the width of a layoutItem for different device sizes using size, mediumDeviceSize, and largeDeviceSize attributes" (Salesforce Lightning Design System, Grid System).
Key Attributes and Device Breakpoints:
* Device Sizes:
* size: Applies to small devices (mobile, < 768px).
* mediumDeviceSize: Applies to medium devices (tablets, # 768px).
* largeDeviceSize: Applies to large devices (desktops, # 1024px).
* Grid Behavior:
* Each <lightning:layoutItem> occupies a number of columns based on the specified size attribute.
* If the total columns in a row exceed 12, the next <lightning:layoutItem> wraps to a new row, unless multipleRows="true" forces each item to a new row.
* If multipleRows="true", each <lightning:layoutItem> starts on a new row, ignoring column sizes.
* Requirement Analysis:
* Mobile (size): Each <lightning:layoutItem> should use the full row (size="12") to create three rows (one per field).
* Tablets (mediumDeviceSize): Should ideally be in one row, but the requirement specifies desktops and tablets together, so we'll interpret this as both needing a single row.
* Desktops (largeDeviceSize): All three fields should fit in one row, meaning the total columns must be # 12.
Fixing the Issue:
* Remove multipleRows="true": Setting multipleRows="true" forces each <lightning:layoutItem> to a new row, which prevents the desktop/tablet requirement (single row) from being met. The Lightning Component Reference states: "When multipleRows is true, each layoutItem starts a new row" (Salesforce Lightning Component Reference, lightning:layout). To allow items to stay in the same row on larger devices, multipleRows should be omitted or set to false (default).
* Set Column Sizes:
* For mobile (size="12"), each item takes the full row (12 columns), resulting in three rows.
* For tablets and desktops, we need all three fields in one row. Since there are three fields, each should take 4 columns (12 total columns รท 3 fields = 4 columns per field) to fit in one row.
* Both mediumDeviceSize (tablets) and largeDeviceSize (desktops) should be set to 4 to ensure a single row on both device types.
Evaluating the Options:
* A.
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="4">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="4">{!v.account.AccountNumber}</lightning:
layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="4">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
* Mobile: size="12" # Each item takes 12 columns, creating three rows (meets requirement).
* Tablets: mediumDeviceSize="4" # Each item takes 4 columns, but multipleRows="true" forces each item to a new row, resulting in three rows (fails desktop/tablet requirement).
* Desktops: No largeDeviceSize specified, so it inherits mediumDeviceSize="4", but multipleRows="true" still forces three rows (fails).
* Conclusion: Incorrect, as multipleRows="true" prevents a single row on tablets and desktops.
* B.
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="4">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12" largeDeviceSize="4">{!v.account.AccountNumber}</lightning:layoutItem>
<lightning:layoutItem size="12" largeDeviceSize="4">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
* Mobile: size="12" # Three rows (meets requirement).
* Tablets: First item has mediumDeviceSize="4", but the other two have no mediumDeviceSize, so they inherit size="12". With multipleRows="true", it's still three rows (fails).
* Desktops: largeDeviceSize="4" for the last two items, but the first item has no largeDeviceSize, so it uses mediumDeviceSize="4". However, multipleRows="true" forces three rows (fails).
* Conclusion: Incorrect, as multipleRows="true" prevents a single row, and the first item lacks largeDeviceSize.
* C.
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.AccountNumber}</lightning:
layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
* Mobile: size="12" # Three rows (meets requirement).
* Tablets: mediumDeviceSize="6" # Total columns = 6 + 6 + 6 = 18. Without multipleRows=" true", this would wrap into two rows (6 + 6, then 6), but with multipleRows="true", it forces three rows (fails).
* Desktops: No largeDeviceSize, so it uses mediumDeviceSize="6", still three rows due to multipleRows="true" (fails).
* Conclusion: Incorrect, as multipleRows="true" prevents a single row, and even without it, the total columns (18) exceed 12, creating multiple rows.
* D.
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Name}<
/lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.AccountNumber}
</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Industry}<
/lightning:layoutItem>
</lightning:layout>
* Mobile: size="12" # Three rows (meets requirement).
* Tablets: mediumDeviceSize="6" # Total columns = 6 + 6 + 6 = 18. With multipleRows="true", this forces three rows (fails tablet requirement).
* Desktops: largeDeviceSize="4" # Total columns = 4 + 4 + 4 = 12, which fits in one row.
However, multipleRows="true" forces three rows (fails desktop requirement).
* Conclusion: Appears incorrect due to multipleRows="true", but let's reconsider the interpretation of the requirement.
Reinterpreting the Requirement:
* The question states: "Requirement 2 is not displaying as desired," and Requirement 2 is "For desktops and tablets, the information should display in a single row." However, the options all include multipleRows="true", which inherently conflicts with the desktop/tablet requirement.
* Assumption: The inclusion of multipleRows="true" in all options might be a mistake in the question, as it directly contradicts the requirement for desktops and tablets. Let's evaluate option D without multipleRows="true" (assuming it's a typo in the question):
<lightning:layout>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Name}<
/lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.AccountNumber}
</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Industry}<
/lightning:layoutItem>
</lightning:layout>
* Mobile: size="12" # Each item takes 12 columns, creating three rows (meets requirement).
* Tablets: mediumDeviceSize="6" # Total columns = 6 + 6 + 6 = 18. First two items fit in one row (6 + 6 = 12), third item wraps to a second row (6), resulting in two rows (fails tablet single-row requirement).
* Desktops: largeDeviceSize="4" # Total columns = 4 + 4 + 4 = 12, all fit in one row (meets desktop requirement).
* Interpretation Adjustment: The requirement specifies "desktops and tablets" together, but the SLDS grid treats them separately (mediumDeviceSize for tablets, largeDeviceSize for desktops). Option D is the only one that sets largeDeviceSize="4", ensuring a single row on desktops. For tablets, it results in two rows, which contradicts the requirement if tablets must also be in a single row. However, if we prioritize desktops (as the most specific match for largeDeviceSize), option D is the closest fit.
"
Why Option D is Correct (with Assumption):
Option D is the best match if we assume multipleRows="true" is a typo in the question:
* Without multipleRows="true", option D becomes:
<lightning:layout>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Name}<
/lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.AccountNumber}
</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6" largeDeviceSize="4">{!v.account.Industry}<
/lightning:layoutItem>
</lightning:layout>
* It meets the mobile requirement (size="12", three rows).
* It meets the desktop requirement (largeDeviceSize="4", total 12 columns, one row).
* For tablets, it results in two rows (mediumDeviceSize="6", total 18 columns), which may not strictly meet the requirement, but the question's focus on "desktops and tablets" might prioritize desktops, where it succeeds.
* The other options either fail to set largeDeviceSize correctly (A, C) or have inconsistent attributes (B).
Handling Typos:
* The provided code has typos:
* <flighting:layoutitem> # <lightning:layoutItem>.
* <lighting:layoutitem> # <lightning:layoutItem>.
* Extra space in 3ize # size.
* These are corrected in the analysis to match the intended component names.
* The presence of multipleRows="true" in all options contradicts the desktop/tablet requirement. We assume this is a mistake in the question, as no option would meet the requirement otherwise. Removing multipleRows="true" makes option D the closest match.
References:
Salesforce Lightning Component Reference:
"lightning:layout" section: Explains multipleRows and its impact on row wrapping.
"lightning:layoutItem" section: Details size, mediumDeviceSize, and largeDeviceSize attributes for responsive design.(Available at: https://developer.salesforce.com/docs/component-library/bundle/lightning:
layout)
Salesforce Lightning Design System:
"Grid System" section: Describes the 12-column grid and responsive breakpoints.(Available at: https://www.
lightningdesignsystem.com/utilities/grid/)
Platform Developer I Study Guide:
Section on "User Interface": Covers building responsive layouts with Lightning components.(Available at:
https://trailhead.salesforce.com/en/content/learn/modules/platform-developer-i-certification-study-guide)
NEW QUESTION # 128
Which statement should be used to allow some of the records in a list of records to be inserted if others fail to be inserted?
Answer: C
Explanation:
* Database.insert(records, false):
* The Database.insert() method with the allOrNone parameter set to false allows for partial success.
* If some records in the list fail due to validation rules, triggers, or other errors, the method will still attempt to insert the remaining valid records.
* The false parameter ensures that records that fail will not roll back the transaction for the others.
* Why not the other options?
* A. Database.insert(records, true):
* The true parameter makes the operation transactional (all or none). If any record fails, all records will roll back.
* B. insert records:
* The insert DML statement behaves like Database.insert(records, true) by default and rolls back all records if any error occurs.
* C. insert(records, false):
* This syntax is invalid in Apex.
References:
* Apex DML Operations Documentation
* Database Methods
NEW QUESTION # 129
In the following example, which starting context will mymethod execute it is invoked?
Answer: A
NEW QUESTION # 130
......
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