Which of the following sequences can be matched by the regular expression [^100|200]$?

• A.100,300,200
• B.200 100 300
• C.300200 100
• D.100 200 300

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In RSTP, which port provides a backup path to reach the root node of the spanning tree?
What state is the port in?

• A.Alternate Port and Forwarding Status
• B.Root Port and Listening Status
• C.Alternate Port and Learning Status
• D.Designated port and Listening status
• E.Alternate port and Discarding status

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