Network Addressing and Transport Flashcards
What format are MAC addresses written in?
Hexadecimal Format
With MAC addresses, __________ have a lower value than __________.
Numbers; Letters
How many 8-bit octets, or bytes, compose a MAC Address? For a total of ____ bits of data in the entire address.
Six; 48
The most significant bytes are at the beginning, or_______most octet, and are transmitted first.
left
The first three octets represent the OUI. What does it stand for?
Organizationally Unique Identifier (OUI)
What does the OUI identify?
Manufacture of the device
The last three octets are assigned by the manufacture of the device. What is this called?
Unique NIC-specific identifier
Definition of a Byte
Unit of digital information
1 Byte = __ bits
8 bits
An Octet = __ Bytes
1 Byte
8 bits = __ Octet
1 Octet
What is the main difference with how a bit is transmitted vs. a byte
The least significant bit of a byte is transmitted first.
Indicator flags of a MAC address
The two least significant bits of the most significant byte are used. (bit 2 & bit 1)
Unicast is designated where and by what?
bit 1 (The least significant bit of the most significant byte.)
0 equates to unicast
1 equates to _______?
Multicast