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Exam 12: File Management

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Question 21

True/False

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The cluster is the fundamental unit of allocation in NTFS.

A) True
B) False

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Question 22

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A _________ is a collection of related fields that can be treated as a unit by some application program.

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

E) None of the above
F) A) and B)

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Question 23

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A _________ is a contiguous set of allocated blocks.

A __________ is responsible for starting I/O operations on a device and processing the completion of an I/O request.

The _________ file exploits the capability found on disks to access directly any block of a known address.

The __________ is responsible for all file I/O initiation and termination.

__________ are often used where very rapid access is required, where fixed-length records are used, and where records are always accessed one at a time.

An _________ is a control structure that contains the key information needed by the operating system for a particular file.

A field is characterized by its length and data type.

Typically, the only way that a user or application may access files is through the file management system.

An objective of the __________ is to meet the data management needs and requirements of the user, which include storage of data and the ability to perform related operations.

Because there is no structure to the _________ form of file organization, record access is by exhaustive search.

Records may only be of fixed length.

The least-complicated form of file organization is the indexed file.

The most common form of file structure is __________ .

Three methods of file allocation commonly used are: chained, indexed and _________ .

_________ are used mostly in applications where timeliness of information is critical and where data are rarely processed exhaustively.

A partial index contains one entry for every record in the main file.

Device drivers are not part of the operating system.

A _________ is a collection of related data.