DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In Ethernet addressing, if all the bits are 1 then the address is ____
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unicast
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multicast
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broadcast
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none of the above
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Explanation:
Detailed explanation-1: -If the least significant bit of the first byte in a destination address is 0, the address is unicast; otherwise, it is multicast. A unicast destination address defines only one recipient; the relationship between the sender and the receiver is one-to-one.
Detailed explanation-2: -An Ethernet MAC address is a 48-bit address expressed using 12 hexadecimal digits, as shown in Figure 7-7. Because 1 byte equals 8 bits, we can also say that a MAC address is 6 bytes in length. All MAC addresses must be unique to the Ethernet device or Ethernet interface.
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