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Question 98 - H31-311 discussion
When a working PQ1 board is faulty, the device performs TPS protection switching. Which of the following statements about the switching process are correct? (Multiple Choice)
A.
The cross-connect board detects that the PQ1 board is faulty through the board status bus.
B.
If the protection PQ1 board is normal, the cross-connect board sends a switching message to the D75S corresponding to the faulty PQ1 board through the switching control bus.
C.
The D75S board responds to the switching message by transferring services to the shared protection bus and stopping sending services to the faulty PQ1 board.
D.
The protection PQ1 board receives and processes the services that are transferred from the D75S board to the protection bus to complete the protection switching.
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