* Testing Board Reset :
* Testing the reset functionality of an OLT board ensures that the board can recover from failures or configuration changes.
* Methods for Testing Reset :
* Hot Swap : Physically removing and reinserting the board tests its ability to initialize and function after a reset.
* RESET Button : Pressing the physical RESET button on the board forces a hardware reset, verifying recovery capabilities.
* Reset Command : Using CLI commands (e.g., reset board) resets the board remotely, allowing verification of software-based recovery.
* Why D?
* All three methods are valid ways to test the reset functionality of an OLT board. Each method addresses different scenarios and ensures comprehensive testing.
Thus, the correct answer is D .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: OLT Maintenance.
* OLT Hardware and Software Reset Procedures by Huawei.