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Describe the structure and functionality of a hierarchical database.

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A hierarchical database is a type of dat...

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Relational database tables require a common data item.

A) True
B) False

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Typically,one of the duties of a database administrator is to interact with the data administration subsystem.

A) True
B) False

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In a distributed database,all the data must be physically located in one place.

A) True
B) False

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Which of the following is not an advantage of using a database?


A) security
B) reliability
C) sharing
D) data integrity

E) A) and D)
F) All of the above

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A(n) ________ is a group of related characters.


A) record
B) field
C) entity
D) attribute

E) B) and C)
F) A) and C)

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These databases store not only data but also instructions to manipulate the data.


A) hierarchical
B) network
C) object-oriented
D) multidimensional

E) A) and B)
F) A) and C)

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In a network database,a node may be reached through more than one path with the help of ________.


A) strings
B) pointers
C) links
D) connectors

E) C) and D)
F) All of the above

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Differentiate between the individual database and the company database.

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Answered by ExamLex AI

The terms "individual database" and "com...

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A collection of related fields such as a person's name,address,and age.


A) character
B) record
C) field
D) file

E) A) and C)
F) C) and D)

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The analysis tools associated with the data manipulation subsystem that support querying databases include ________ and structured query languages (SQL) .


A) query-by-example
B) data redundancy
C) attribute analysis
D) data definition

E) A) and D)
F) B) and D)

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In ________,data from transactions are collected over time and then processed all at once.


A) batch processing
B) group processing
C) real-time processing
D) consignment processing

E) A) and C)
F) B) and C)

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A record is a collection of related tables.

A) True
B) False

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The duties of a database administrator include determining which people have access to what kinds of data in the database; these are referred to as ________ rights.


A) analysis
B) management
C) processing
D) application

E) C) and D)
F) A) and B)

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In the object-oriented database model,this term is the equivalent to a field in a relational model.


A) entity
B) class
C) method
D) attribute

E) A) and D)
F) B) and C)

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The logical arrangement of data in a database is called the database model.

A) True
B) False

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In a(n) ________ database,a node may be reached through more than one path with the help of pointers.


A) multidimensional
B) object-oriented
C) network
D) relational

E) C) and D)
F) B) and C)

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If all the data in a database is not physically located in one place,it would be a(n) ________ database.


A) individual
B) web
C) commercial
D) distributed

E) All of the above
F) B) and C)

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How does a relational database differ from a hierarchical database?

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Answered by ExamLex AI

A relational database and a hierarchical...

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The database in which data elements are organized using classes,objects,attributes,and methods is called the object-oriented database.

A) True
B) False

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