QUESTIONS TESTED QUESTIONS
◍ Attribute. Ans: An (...) is a property or characteristic of an entity.
◍ Binary relationship. Ans: A (...) is a relationship between two
entity types.
◍ Cardinality. Ans: (...) represents the maximum number of entities
that can be involved in a particular relationship.
◍ Cascade Delete. Ans: Will delete all records that reference the
primary key
◍ Database. Ans: A (...) is a collection of information that is
organized so that it can easily be accessed, managed, and updated.
◍ E-R model. Ans: An (...) is a data model for describing a database
in an abstract way.
◍ Entity. Ans: An (...) is an object or event in our environment that
we want to keep track of.
◍ Intersection Data. Ans: Associated with the concatenation of two
segments
, ◍ Modality. Ans: (...) represents the minimum number of entity
occurrences that can be involved in a relationship.
◍ Ternary Relationship. Ans: A (...) relationship is when three
entities participate in the relationship.
◍ Unary Relationships. Ans: (...) relationships associate occurrences
of an entity type with other occurrences of the same entity type.
◍ Unique Identifier. Ans: A (...) is any identifier which is guaranteed
to be unique among all identifiers used for those objects and for a
specific purpose.
◍ Data encryption. Ans: When data is (...), it is changed, bit by bit or
character by character, into a form that looks totally garbled. It can
and must be reconverted, or decrypted, back to its original form to be
of use.
◍ Data normalization. Ans: Is a methodology for organizing
attributes into tables so that redundancy among the non-key attributes
is eliminated.
◍ Data volatility. Ans: Describes how often stored data is updated.
◍ Data Volume Assessment. Ans: Understanding of how much data
will be in a database or a table within a database