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NEW QUESTION # 32
Universal Containers has a Visualforce page that displays a table of every Container_c. being ....... Is falling with a view state limit because some of the customers rent over 10,000 containers.
What should a developer change about the Visualforce page to help with the page load errors?
Answer: B
Explanation:
To avoid exceeding the view state limit of 170 KB12, the developer should implement pagination with a StandardSetController. A StandardSetController allows the developer to display a set of records in a Visualforce page with built-in support for pagination, sorting, and filtering3. By using a StandardSetController, the developer can limit the number of records that are displayed and stored in the view state at a time, and provide navigation buttons for the user to access the next or previous set of records.
The other options are not correct because:
* A. Use Lazy loading and a transient List variable. This option is not effective, because lazy loading means that the data is loaded only when it is needed, but it still requires storing the data in the view state. A transient List variable is not included in the view state, but it also means that the data is lost
* after each request and has to be queried again, which can affect performance and consistency.
* B. Use JavaScript remoting with SOQL Offset. This option is not recommended, because JavaScript remoting does not support pagination, sorting, or filtering, and requires additional JavaScript code to handle the callbacks and display the data. SOQL Offset is also limited to 2,000 records, and can cause performance issues when used with large data sets.
* C. Implement pagination with an OffsetController. This option is not optimal, because an OffsetController is a custom controller that uses SOQL Offset to implement pagination. As mentioned above, SOQL Offset has limitations and drawbacks that make it unsuitable for large data sets.
References:
* : Optimize the View State
* : Create More Complex Visualforce Pages with Increased View State Limit
* : StandardSetController Class
* : [Transient Keyword]
* : [SOQL OFFSET Clause]
NEW QUESTION # 33
Which code in a Visualforce page and/or controller might present a security vulnerability?
Answer: C
NEW QUESTION # 34
In which order does SalesForce execute events upon saving a record?
Answer: B
NEW QUESTION # 35
Candidates are reviewed by four separate reviewers and their comments and scores which range from 1 (lowest) to 5 (highest) are stored on a review record that is a detail record for a candidate what is the best way to indicate that a combined review score of 15 of better is required to recommend that the candidate come in for an interview?
Answer: B
NEW QUESTION # 36
Which code displays the content of Visualforce page as PDF?
Answer: C
NEW QUESTION # 37
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