Question: What is the difference between a regular call of a task and a call of a task with I / O at task start

What is the difference between a regular call of a task and a call of a task with "I/O at task start" ?a. Both run like a regular PLC, with the second one updating the outputs at each scanb. Both have no cycle time exceeded propertyprogram in the current scan is performedd. None of the choicesupdated, and then the execution of the program in the current scan is performed.
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What is the difference between a regular call of

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