List and describe three characteristics that all files have in common.
What will be an ideal response?
Each file has a name. The name often includes a dot and a filename extension, which is a group of characters added to the end of a filename that describes the type of file. For example, .txt is a plain text file, .dat is a data file, and .jpg is an image file in Joint Photographic Experts Group format. A filename's extension frequently designates the software that will be used to open a file; for example, a file that uses the extension .docx will usually be opened by Microsoft Word by default.?Each file has a specific time of creation and a time it was last modified.?Each file occupies space on a section of a storage device; that is, each file has a size. Sizes are measured in bytes.
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What fact-finding methods could you use to collect information from employees at ColonialMovers? Suggest at least three methods, and explain the pros and cons of each.
What will be an ideal response?
Which of the following is NOT a problem of working with flat files in PHP?
a. Searching for a particular record is difficult b. When a file becomes small, working with it can be very slow c. Dealing with concurrent access can become problematic d. All file processing is sequential
You use the ____ command to tune file system parameters on a Linux ext2, ext3, or ext4 file system.
A. mke2fs B. hdparm C. tune2fs D. e2fsck
If you sorted a table which had 53 records by two fields, one ascending and the other descending, how many records would display?
A) It depends on how many of the fields are blank. B) It depends on how many of the fields contain exactly the same information. C) 106 D) 53