A data model is a ________ that shows how data is arranged.
A model is best described as __________.
A data model defines how data is ________.
One major function of a data model is to avoid __________.
The flat-file model represents data in ________.
A hierarchical model arranges data in a _________ structure.
In a hierarchical model, the topmost record is called the ________.
The network model organizes data using ________.
A network model allows data to be accessed through ________.
A network model commonly shows a ________ relationship.
In a relational model, a table is also called a ________.
The Entity-Relationship model is based on real-life ________.
In an ER model, entities are described using their ________.
A Database Management System is used to ________.
The language used to communicate with a relational DBMS is called ________.
A database can be defined as ________.
A relational DBMS stores data in ________.
Which of the following is an example of a DBMS?
MS Access is classified as a ________.
The main purpose of a DBMS is to ________.
1. The Entity-Relationship model describes data in terms of ________.
An entity is anything that ________.
An entity type refers to ________.
An entity instance refers to ________.
In an ER diagram, entities are represented using ________.
Attributes in an ER diagram are represented using ________.
Which type of attribute cannot be divided further?
Which attribute is made up of multiple sub-parts?
Derived attributes are obtained from ________.
A key attribute is one that ________.
A relationship connects ________.
A ternary relationship connects ________.
Convert decimal 64₁₀ to hexadecimal.
Convert decimal 56₁₀ to octal.
Convert octal 75₈ to binary.
Convert binary 111100₂ to hexadecimal.
How many nibbles are there in 3 bytes?
How many bits are in 1 MB?
Convert 512 nibbles to bytes.
