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

Multiple choice technology databases

Control file contains information about

  1. database

  2. redo logfile & datafile

  3. archivelog file location

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Oracle control file is a small binary file that contains critical database metadata. It stores information about the database name and creation timestamp, locations and names of all datafiles, online redo log files, and archived redo log destinations. Option D is correct because it encompasses all these components. Options A, B, and C are each individually true but incomplete.

Multiple choice technology platforms and products

What data sources are supported in rules files? (Choose all that apply)

  1. Text Files (.txt)

  2. MS EXCEL Files (.xls)

  3. Data Files (.dat)

  4. Comma Delimited Files (.csv)
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

Essbase rules files support multiple data source formats for loading data. Standard supported formats include text files (.txt), Microsoft Excel files (.xls), and comma-delimited files (.csv). The .dat format is typically Essbase's native data export format and is loaded directly, not through rules files.

Multiple choice technology mainframe

What is SPUFI

  1. SQL processing using file input

  2. SQ Linear processing using file input

  3. SQL processing using file

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

SPUFI stands for SQL Processing Using File Input. It is an IBM DB2 facility that allows SQL statements to be executed from input files rather than interactively. Users prepare SQL queries in a dataset, and SPUFI processes them and returns results to output files. The other options are incorrect expansions of the SPUFI acronym.

Multiple choice technology testing

What is the file extension of the setting file created by JProbe?

  1. .jpl

  2. .bat

  3. .jpb

  4. .sln
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

JProbe saves configuration settings with the .jpl file extension. This file stores your analysis configuration including what types of data to collect, filters, triggers, and other profiling settings. The other extensions are for different tools - .bat is a Windows batch file, .sln is a Visual Studio solution file, and .jpb might be mistaken but is not the standard JProbe settings extension.

Multiple choice technology programming languages

What is the outcome of the scenario : open(FH, ">c:\temp\notes.txt") ?

  1. Opens a file notes.txt

  2. fails to create a file and displays error

  3. fails to open a file but doesn't display error

  4. Opens a file but not notes.txt
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In Perl, the backslash in "c:\temp\notes.txt" is an escape character. \t becomes a tab character, \n becomes newline. So the actual filename interpreted is "c:empotes.txt" - a garbled path, not "c:\temp\notes.txt". The file will be created with this incorrect name if permissions allow.

Multiple choice technology

Why do you use hosts.txt file on any system?

  1. Bypass the local DNS server

  2. Host a website on your system

  3. Set the IP address for localhost

  4. No such file exists on the systemNo such file exists on the system
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

The hosts.txt file (on Unix/Linux at /etc/hosts, on Windows at C:\Windows\System32\drivers\etc\hosts) maps hostnames to IP addresses. It's checked before DNS queries, allowing you to bypass DNS for specific entries. It commonly sets 127.0.0.1 to 'localhost' for local loopback resolution. It does not host websites nor is it nonexistent.

Multiple choice technology testing

You save favorite views in either a .... folder or a ..... folder. Views in a .... folder are accessible to all users. Views in a ..... folder are accessible only to the user who created them

  1. public, private, public, private

  2. Root, Base, Root, Base

  3. locked, unlocked, locked, unlocked

  4. Both B & C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Quality Center, public folders make views accessible to all users, while private folders restrict access to only the creator. The fill-in-the-blank pattern correctly maps to public/private/public/private.

Multiple choice technology testing

You save favorite views in either a .... folder or a ..... folder. Views in a .... folder are accessible to all users. Views in a ..... folder are accessible only to the user who created them

  1. public, private, public, private

  2. Root, Base, Root, Base

  3. locked, unlocked, locked, unlocked

  4. Both B & C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Favorite views in Quality Center can be saved in either 'public' or 'private' folders. Public folder views are accessible to all users in the project, while private folder views are only visible to the user who created them. This distinction allows for both collaborative and personal view management.

Multiple choice technology

The association between a filename and corresponding file medium is done in

  1. Date-compiled paragraph, identification division

  2. Object-computer paragraph, configuration section and environment division

  3. File-control paragraph, I-O Section and environment division

  4. I-O control paragraph, I-O Section and environment division.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The File-Control paragraph in the Environment Division's I-O Section establishes the link between the filename used in the program and the actual physical storage medium. This configuration specifies how files are managed and accessed.