多项选择题

Which two statements are correct about Layer 2 broadcas……

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

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多项选择题Which two statements accurately describe a broadcast domain?（）

A. Broadcast domains require that the participating devices connect to common switches or hubs
B. Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address
C. Broadcast domains require a gateway device such as a router
D. Broadcast domains consist of devices that reside on the same VLAN

单项选择题What information is used by a switch to forward an Ethernet frame to its destination?（）

A. IP address
B. destination MAC address
C. ARP table entry
D. FCS checksum

单项选择题What is the decimal equivalent of 10101010?（）

A. 182
B. 180
C. 172
D. 170

单项选择题What represents the binary equivalence of 148?（）

A. 10010110
B. 11010010
C. 10011100
D. 10010100

单项选择题What represents the decimal equivalence of 11100111?（）

A. 195
B. 223
C. 230
D. 231