Computer Knowledge
Computer File Systems
1,516 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
A
Correct answer
Explanation
In QuickTest Professional (QTP), function libraries created in the Function Library editor are saved with the .QFL (QuickTest Function Library) file extension. This distinguishes them from test scripts (.QTP) and other file types.
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C:\WINDOWS\system32\Logfiles
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C:\WINDOWS\system32\Logfiles\Date
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C:\WINDOWS\system32\Logfiles\W8SVX10
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C:\WINDOWS\system32\Logfiles\W3SVC1
D
Correct answer
Explanation
IIS (Internet Information Services) stores log files in the W3SVC1 directory by default, where W3SVC1 represents the default website instance. The path C:\WINDOWS\system32\Logfiles\W3SVC1 is the standard location for the Default Web Site's logs. Options A and B are incomplete paths, while W8SVX10 is not a valid IIS website identifier.
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Easytrieve is an information retrieval and data management system
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Easytrieve allows fixed, variable, undefined, or spanned record formats
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Matches an unlimited number of files
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Cannot call progams written in other languages
D
Correct answer
Explanation
Easytrieve is an information retrieval and data management system that supports various record formats and can match multiple files. However, it CAN call programs written in other languages through mechanisms like CALL statements, making option D the false statement as claimed.
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Only for an outfile defined as printer
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For any outfile that we write to
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Both a & b
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None of the above
A
Correct answer
Explanation
In Easytrieve, the MASK statement is specifically used for formatting output on printer files. It defines how data fields should appear when printed. MASK cannot be used on arbitrary output files, only those defined as printer files.
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DDName::FILE-STATUS
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FILE-STATUS::DDName
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DDName:FILE-STATUS
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None of the above
C
Correct answer
Explanation
To check the status of an I/O operation on a file in Easytrieve, you use the syntax DDName:FILE-STATUS. This references the file status field associated with a specific DDName. The colon is the correct delimiter.
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Only for an outfile defined as printer
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For any outfile that we write to
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Both a & b
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None of the above
A
Correct answer
Explanation
This is a duplicate of question 131878. MASK is used only for printer output files in Easytrieve for formatting purposes. It cannot be used on arbitrary output files.
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A. Local Data Sheet, Global Data Sheet, Folder
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B. Local Object Repository, Local Data Sheet, Folder
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C. Global Data Sheet, Local Object Repository, Folder
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D. Local Data Sheet, Global Data Sheet, Local Object Repository
B
Correct answer
Explanation
By default, creating a new action in QTP/UFT automatically generates a Local Object Repository, a Local Data Sheet, and a corresponding folder structure to store the action's assets.
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VSAM File
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Sequential file
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Sequential and VSAM
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None
C
Correct answer
Explanation
File-AID is a mainframe file management and editing tool that supports both VSAM (Virtual Storage Access Method) files and sequential files. It provides browsing, editing, and comparison capabilities for multiple file formats. The tool isn't limited to just one file type - its versatility for handling both VSAM and sequential datasets is a key feature.
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VFMT
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FMT
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UNFMT
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All of the above
D
Correct answer
Explanation
In mainframe file access, different formats include VFMT (Variable Format), FMT (Fixed Format), and UNFMT (Unformatted). These represent different ways data is structured and accessed in mainframe systems. 'All of the above' correctly indicates that these are all valid file format types in mainframe computing environments.
B
Correct answer
Explanation
File-AID is primarily a file browsing, editing, and comparison tool, not a file creation utility. While you can edit VSAM file contents with File-AID, the actual creation and definition of VSAM clusters requires IDCAMS or similar utilities. VSAM file creation involves defining cluster structures that File-AID doesn't handle.
B
Correct answer
Explanation
File-AID is designed for browsing, editing, and managing dataset contents. Alternate index creation is a VSAM definition task that requires IDCAMS or other VSAM management utilities, not File-AID's data manipulation capabilities.
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TALLY
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COUNT
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TOTAL
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AVERAGE
A
Correct answer
Explanation
The TALLY function in File-AID is specifically used to count records and provide record count statistics. Functions like COUNT, TOTAL, and AVERAGE are either not standard File-AID commands or serve different purposes.
B
Correct answer
Explanation
GDG (Generation Data Group) creation and management requires IDCAMS or JCL with proper DCB parameters. File-AID is for browsing and editing existing dataset contents, not for creating GDG base definitions or managing generations. The claimed answer 'False' is correct.