Questions

Flag is a flip-flop used to store the information about the status of a processor and the status of the insturction executed most recently.

A software or hardware mark that signals a particular condition or status. A flag is like a switch that can be either on or off. The flag said to be set when it is turned on.

The Mayans were an ancient civilization located in what is known as Mesoamerica, a geographical region comprised of Mexico and parts of Central America. They were extremely adept in matters of mathematics, astronomy, and art, and architecture.

The Mayan pyramids and temples were built with bricks and covered with limestone.

Foreign keys are the columns of a table that points to the primary key of another table. They act as a cross-reference between tables.

In detail : A Foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table. In simpler words, the foreign key is defined in a second table, but it refers to the primary key or a unique key in the first table.