Quiz Study T/F

A file extension is usually two to four characters in length and is separated from the relative name by a period.

true

A subdirectory is created when a user opens an account to access the computer system.

true

Although noncontiguous allocation schemes eliminate external storage fragmentation and the need for compaction, they don't support direct access because there's no easy way to determine the exact location of a specific record.

true

Directories are special files that contain listings of filenames and their attributes.

true

If the File Manager is required to provide detailed instructions for each system device (how to start it, get it to move to the correct place where the desired record is located, and when to stop), then the program is considered device dependent.

true

Many systems force users to have their files organized for fixed-length records if the records are to be accessed directly.

true

Sequential record organization is by far the easiest to implement because records are stored and retrieved serially, one after the other.

true

To support text compression, data in a fixed-length field that includes a short name followed by many blank characters can be replaced with a variable-length field and a special code to indicate how many blanks were truncated.

true

When using a contiguous file storage scheme, the File Manager keeps track of empty storage areas by treating them as files.

true

A compressed image file can be reconstructed if a lossy compression algorithm is used because the compression process is reversible.

false

A field is a group of related records that can be identified by the user with a name, type, and size.

false

A relative filename is a name that is selected by the File Manager when the file is created.

false

A volume must contain a single file.

false

An indexed sequential file does not have overflow areas.

false

Files cannot be converted from sequential to direct or vice versa.

false

In a file directory tree structure, the "leaves" of the tree are subdirectories created by the user.

false

In a file management system, information is passed from the Device Manager at the top of the hierarchy to the File Manager at the bottom.

false

The File Manager responds to the CREATE command by creating a new file.

false

When a user gives a command to modify the contents of a file, it's actually a command to access folders within the file.

false

Within a file, variable-length records are easier to access directly than fixed-length records.

false