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多項(xiàng)選擇題

Which two fields are found in an Ethernet frame header?（）

A. TTL
B. flags
C. checksum
D. type

多項(xiàng)選擇題

Which two statements are correct about Layer 2 broadcast frames?（）

A. Layer 2 broadcast frames are processed by all devices on the same VLAN
B. Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs
C. Layer 2 broadcast frames are relayed by routers to all connected VLANs
D. Layer 2 broadcast frames are relayed by switches to devices on the same VLAN