What is the first 24 bits in a MAC address called?（）A、NICB、BIAC、OUID、VAI
What is the first 24 bits in a MAC address called?（）
- A、NIC
- B、BIA
- C、OUI
- D、VAI
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单选题What is the effect of the following access list condition? access-list 101 permit ip 10.25.30.0 0.0.0.255 any（）。Apermit all packets matching the first three octets of the source address to all destinationsBpermit all packets matching the last octet of the destination address and accept all source addressesCpermit all packets from the third subnet of the network address to all destinationsDpermit all packets matching the host bits in the source address to all destinationsEpermit all packets to destinations matching the first three octets in the destination address
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多选题In computer networking a multicast address is an identifier for a group of hosts that have joined amulticast group. Multicast addressing can be used in the Link Layer （OSI Layer 2）， such as Ethernet Multicast， as well as at the Internet Layer （OSI Layer 3） as IPv4 or IPv6 Multicast. Whichtwo descriptions are correct regarding multicast addressing？（）AThe first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast applicationBThe last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast applicationCTo calculate the Layer 2 multicast address， the host maps the last 23 bits of the IP address intothe last 24 bits of the MAC address. The high-order bit is set to 0DThe first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application
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