Sheet 4

All types of UNIX files are administered by the OS by means of inodes.

A preallocation policy requires that the maximum size of a file be declared at the time of the file creation request.

File systems do not maintain the attributes associated with the files.

A field is characterized by its length and data type.

The cluster is the fundamental unit of allocation in NTFS.

Records may only be of fixed length.

The superuser is exempt from the usual file access control constraints and has system wide access.

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

Device drivers are not part of the operating system.

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

The sequential file organization is the only one that is easily stored on tape as well as disk.

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

A file directory contains information about the files, including attributes, location, and ownership.

Indexed allocation supports both sequential and direct access to the file and thus is the most popular form of file allocation.

A file allocation table (FAT) is used to keep track of the portions assigned to a file.

A _________ is the basic element of data:

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

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

A __________ is a collection of similar records.

A _________ is a collection of related data.

An objective of the __________ is to provide a standardized set of I/O interface routines to user processes.

The __________ level is the primary interface with the environment outside of the computer system.

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

The _________ is concerned with scheduling disk and tape accesses to optimize performance.

The term _________ refers to the logical structuring of the records as determined by the way in which they are accessed.

The most common form of file structure is __________ .

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

A _________ is a contiguous set of allocated blocks.

The _________ contains the core parts of the operating system, including system binaries, system libraries, and configuration files.

__________ represents an open file associated with a process.