ISDS 7301 QUESTIONS AND VERIFIED ANSWERS
Correct 41
Incorrect 00
Your answers
1 of 41
Definition
possible to make changes to the logical structure of the database
without having to make changes to the database application program.
If there is an object named Person in a database system and you want
to add an attribute to Person (such as address), you have to modify
only the logical structure of the database and not existing application
programs.
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Relational Database ER Model labels
Logical data Independence Second Normal Form (2NF)
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, 2 of 41
Definition
always has a data type and length. both depend on the format of the
constant.
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Constant Foreign Key
Bad data design Comments
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3 of 41
Definition
database application programs do not depend on the physical
structure of the stored data in a database. Enables you to make
changes to stored data without having to make any changes to the
database application.
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Physical Data Independence Third Normal Form (3NF)
, Logical data Independence First Normal Form (1NF)
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4 of 41
Definition
is a field in one table that uniquely identifies a row within another table
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database schema Foreign Key
Constant Primary Key
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5 of 41
Term
Nonprocedurality
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contains one or more characters of
the character set enclosed in two
Correct 41
Incorrect 00
Your answers
1 of 41
Definition
possible to make changes to the logical structure of the database
without having to make changes to the database application program.
If there is an object named Person in a database system and you want
to add an attribute to Person (such as address), you have to modify
only the logical structure of the database and not existing application
programs.
Give this one a try later!
Relational Database ER Model labels
Logical data Independence Second Normal Form (2NF)
Don't know?
, 2 of 41
Definition
always has a data type and length. both depend on the format of the
constant.
Give this one a try later!
Constant Foreign Key
Bad data design Comments
Don't know?
3 of 41
Definition
database application programs do not depend on the physical
structure of the stored data in a database. Enables you to make
changes to stored data without having to make any changes to the
database application.
Give this one a try later!
Physical Data Independence Third Normal Form (3NF)
, Logical data Independence First Normal Form (1NF)
Don't know?
4 of 41
Definition
is a field in one table that uniquely identifies a row within another table
Give this one a try later!
database schema Foreign Key
Constant Primary Key
Don't know?
5 of 41
Term
Nonprocedurality
Give this one a try later!
contains one or more characters of
the character set enclosed in two
