Answer:
D) Black -hat
Explanation:
if any other colors of the hats will not work cuz the only way to go dark and scary is to use the black hat
Answer:
A key field is used to uniquely identify each record for retrieval or manipulation.
Explanation:
In a database there are many, having similar entities. So in order to differentiate each entity from other we need to set a key field among all the field which is always unique for each entity.
For example:
In a database of a company having data about its employees, the key field might be their ID. As some employees can have same names, addresses, phone numbers but cannot have the same ID.
Answer:
The PST file format can only be imported into contacts by the outlook
program.
The CSV file type can be created from a document or spreadsheets
and can be imported by multiple email programs.
Explanation:
SQL (<span>Structured Query Language.) is the standard programming language for communicating and organizing databases (DB).
In order to search through the database the statement SELECT should be used.
SELECT select data from the database.
SELECT is followed by the statement FROM which defines from which database you search record. </span>
