Computer Knowledge
Computer File Systems
1,249 Questions
Computer file systems dictate how data is stored, organized, and retrieved on storage devices. Important concepts include file allocation tables, access mechanisms, and various formats like sequential and video files. Candidates preparing for banking and government exams should practice these fundamentals thoroughly.
File access mechanismsVideo and password filesFile extensionsFile allocation tableSystem metadata
Computer File Systems Questions
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Returns the number of matching data records in a Lookup File.
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Returns successive data records from a Lookup File.
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Returns a data record from a partition of a Lookup File.
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Returns a data record from a Lookup File which matches with the values of expression argument.
D
Correct answer
Explanation
A Lookup File function returns a data record that matches the values of the expression argument passed to it. It searches the lookup file based on the expression and returns matching records. Option A is incorrect - it doesn't just return a count. Option B is incorrect - it doesn't return successive records unless they match. Option C is incorrect - it doesn't return from a specific partition without matching criteria.
A
Correct answer
Explanation
In Ab Initio graphs, the same file can be accessed by multiple components simultaneously for both read and write operations. However, proper sequencing and coordination are required to avoid conflicts and ensure data integrity.
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Scripting type
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File Creation
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Object Oriented
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Misselaneous
A
Correct answer
Explanation
The Scripting type library (contained in Scrrun.dll) provides the File System Object for file operations in VBScript. This is a COM library reference for scripting filesystem access.
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Folders are structurally similar to a view.
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Floders also list documents, but do not have a selection criteria
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The user has to decide what are all the documents needs to be stored inside the folder.
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all of these
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None of these
D
Correct answer
Explanation
Folders in Lotus Notes share the structural characteristics of views but operate differently. Unlike views that use selection criteria to automatically include documents, folders are manual containers where users explicitly decide which documents to store. The user must actively place documents into folders, making folders a user-controlled organizational tool rather than a system-defined filtered list.
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Lists the file or directory contents that the link references
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Lists the name in each slot for each directory specified in the Directory parameter.
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Displays nonprintable characters in file names as a ? (question mark) and Reverses the order of the sort.
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Lists all subdirectories recursively.
C
Correct answer
Explanation
ls -lqr combines flags: -l (long format), -q (show non-printable characters as ?), and -r (reverse order). When combined, it displays detailed listings with non-printable characters replaced by ? and reverses the sort order (typically smallest files first when sorted by size).
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VSAM
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QSAM
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xml file
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text file
B
Correct answer
Explanation
Extract records are received through QSAM (Queued Sequential Access Method), which is the standard access method for this data transfer. VSAM is a different access method, and XML/text files are not the primary mechanism.
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Images are stored in FAP
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It contains the attributes of the object.
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It contains the offset value of the image
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FAP files can be read by the processing system and batch system.
C
Correct answer
Explanation
Statement C is incorrect because FAP files store images and their attributes, not offset values. Offset values would typically be stored in separate index or reference files. Options A, B, and D describe actual FAP file characteristics.
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It is a comma-delimited list of one or more recipient list.
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The specific recipients only receive the copy.
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Without defining in FORM.DAT, one can send the copy to recipient defined in recipient list.
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None of these
C
Correct answer
Explanation
The question asks which statement about recipient lists is incorrect. Option C states that you can send copies to recipients defined in the recipient list without defining them in FORM.DAT, which is indeed incorrect because FORM.DAT (or similar control form definitions) is required for proper recipient configuration in CICS form handling. Options A, B, and D are either correct statements or not the incorrect statement being sought.
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central place for storing code to be shared
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to store images
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to store files
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None
A
Correct answer
Explanation
A script library serves as a centralized repository for storing reusable code that can be shared across multiple applications and design elements. This allows developers to maintain code in one place and reference it from forms, views, agents, and other components. Options B and C are incorrect because script libraries are specifically for code, not for storing images or files directly.
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Image file
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Animation/movie file
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Audio file
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MS Office document
B
Correct answer
Explanation
The .MOV extension is Apple's QuickTime multimedia file format, specifically designed for storing video and audio content. It is a container format used for video files, not images, audio-only files, or documents.
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Backup file
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Audio file
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Animation/movie file
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MS Encarta document
A
Correct answer
Explanation
The .BAK extension is universally used across operating systems and applications to denote backup files. When programs create backup copies of documents, configurations, or databases, they typically append .bak to indicate it's a backup copy. It's not associated with audio files, animations, or MS Encarta documents.
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keyboard
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terminal
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server
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host
A
Correct answer
Explanation
In Unix, a character special file represents a device that transmits data sequentially, byte by byte, without buffering. A keyboard is a classic example of a character input device, whereas storage devices are block devices.
B
Correct answer
Explanation
A directory in Unix filesystems must have at least 2 links: the '.' entry (self-reference) and the '..' entry (parent reference). The minimum is 2, not any other number. New directories start with exactly 2 link counts.
B
Correct answer
Explanation
A Unix directory file has a minimum of 2 links: one is the directory's own entry (the '.' link), and the second is the link from its parent directory (the '..' entry in the parent pointing to this directory). This makes the statement 'minimum number of links is 2' FALSE - directory files actually have at least 2 links by default, not exactly 2, and can have more as subdirectories are added.
D
Correct answer
Explanation
zip combines multiple files into a single archive and compresses them simultaneously. tar only archives without compression (requires gzip/bzip2 separately), gzip only compresses single files without directory archiving.