Webmasters monitor the server to be sure it is running,Some webmasters decide what kind of computer will hold a websites information ,Some webmasters abuse other sites by exploiting their comment fields.
Answer:
A primary key is a special relational database table column (or combination of columns) designated to uniquely identify each table record. A primary key is used as a unique identifier to quickly parse data within the table. A table cannot have more than one primary key.
Primary Key.
Candidate Key.
Alternate Key.
Super Key.
Composite Key.
Foreign Key.
Unique Key.
In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation. Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.
Explanation:
<span>subnet mask is used to identify the network portion and the host portion of an ip address.</span>
For free or for money cuz for free u would do ot on ur mp3 and money i would yse apple music
