On the basis of the IEEE 802.1w standard, which two switch ports can forward traffic?
A.
alternate
B.
backup
C.
designated
D.
disabled
E.
root
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IEEE 802.1w is the standard of Rapid Spanning Tree Protocol (RSTP). There are 5 port roles in this standard: Root port, Designated port, Alternative port, Backup port and Disabled port. In these 5 port roles, only Root port and Designated port can forward traffic.
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