The Block ID
The MAC address, also known as a physical address in Microsoft Windows, is unique to every NIC in the world. The first 3 hex digits are the manufacture's code. For example the mac address AA-BB-CC-11-22-33, AA-BB-CC would be the manufactures ID, and your bit would be 11-22-33.
Block IDFrom Network+ Guide to Networks Textbook"The block ID is a six-character sequence unique to each vendor."
I can't see how it could occur; part of that address is the device MAC address, which is unique.
User Interface
The second part of the scientific name, known as the specific epithet, is unique to each species within a genus. It helps to distinguish one species from another within the same genus and is specific to that particular organism.
It's called the internet protocol (IP) address.
The part of an organism that can be used for identification is the nucleus. The nucleus contains DNA which is unique to each person.
Arrow - motorcycle part manufacturer - was created in 1985.
bd address is some nummbers like this: XX:XX:XX:XX:XX:XX it is a 48Bit address that unique for each bluetooth device. its format as shown in below which follows the IEEE 802 standard. Lower Address Part (LAP): 24bits Upper Address Part (UAP): 8 bits Nonsignificant Address Part(NAP): 16 bits -LAP is some company assigned numbers. -UAP and NAP together forms company ids reference: http://books.google.co.kr/books?id=srone6UtmiQC&printsec=frontcover&source=gbs_navlinks_s page 159
If the keys are expected to be unique then yes. Otherwise no.
The party began as a single-issue party, but has grown to address other issues.
Draw an ER diagram for the following application from the manufacturing industry:1. Each supplier has a unique name.2. More than one supplier can be located in the same city.3. Each part has a unique part number.4. Each part has a colour.5. A supplier can supply more than one part.6. A part can be supplied by more than one supplier.7. A supplier can supply a fixed quantity of each part.