A communication error suddenly occurs in an enterprise. It is found that the database log file is too large, which results in insufficient disk space and data write exceptions. Which of the following statements is INCORRECT?

Slots 1 and 2 on an AR router are SIC card slots. One 1E1/T1-M card is inserted into slot 1, and its interface number is 1/0/0. Now, a WSIC card of 8E1/T1-M is used to replace the 1E1/T1-M card to be inserted in slots 1 and 2. Then, the number of interface 0 on the 8E1/T1-M card is ().

The SRU main control board of AR routers is the system control and management core, provides four FXO ports, and supports concurrent access of multiple channels to the PSTN.