Unix 2

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Author:
alishac
ID:
168933
Filename:
Unix 2
Updated:
2012-09-04 17:40:48
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Unix
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Unix 2
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  1. An open source software is a software
    • Which is freely distributed among the community of users
    • Whose source code is freely distributed among the community of users
    • Which is developed by the world-wide community of programmers communicating via the
    • Internet
  2. Postal Service UNIX
    Portable Operating System Interface
  3. The relative pathname of a file in UNIX is with respect to
    • Any other directory on the system except the root directory
    • Current directory of the user
    • Home directory of the user
  4. In the output of the ls –l sample command the leftmost three letters indicate the
    Type of file and state of read and write privileges for the owner of sample
  5. An operating system can have both graphical and commmandline interfaces.
    True
  6. When a user has execute permission for a directory UNIX allows the user to execute
    all executable files in the directory.
    False
  7. Organizing your files is critical to working in UNIX.
    True
  8. What is the character used to separate elements on the UNIX command line?
    Space character
  9. The echo $HOME command displays the absolute pathname for your home directory.
    True
  10. A frame in emacs can consist of many tiled windows.
    False
  11. UNIX does not support file types.
    False
  12. An inode in UNIX
    Is used to contain most of the attributes of a file such as file size and is identified by a unique unsigned integer number known as its inode number
  13. Some UNIX commands may be typed with nothing following the command name itself.
    True
  14. The routines that communicate directly with hardware are all concentrated in the
    UNIX __________.
    kernel
  15. The execution of the umask command without argument
    Displays the current mask value
  16. The number of processes executing on a system at a given time is known as system
    throughput.
    False
  17. All UNIX text editors are capable of
    • cut/paste
    • cursor movement
    • deleting text
  18. In UNIX there are four types of users of a file: owner of the file users who are owner's group everyone else and the superuser.
    True
  19. Under UNIX __________ devices hold files.
    block
  20. In regards to data communications, logical connectivity refers to which of the following:
    Establishing an FTP connection to a remote server.
  21. Bourne Korn C — What comes to mind
    UNIX shells
  22. If you have write and execute permissions on ~/personal directory the ls –l ~/personal command executes properly and displays names of all the files and directory in ~/personal.
    False
  23. You need only write permission for a directory in order to create a file in it.
    False
  24. A user in a UNIX system can be part of more than one user group
    True
  25. Although they may show up in a file name, UNIX itself does not support or offer special recognition of file
    extensions.
    True
  26. A hidden file is also called what?
    A dot file
  27. Which of the following best describes what an editor buffer is?
    A temporary storage area for text you are editing
  28. The mkdir –p ~/personal/taxes command can be used to create the personal directory under your home directory and the taxes directory under the personal directory.
    True
  29. Latency time for a disk depends on how fast its head can move.
    False
  30. You don't really need to know the exact syntax of a UNIX command to use it.
    False
  31. An example of an e-mail user agent program is which of the following?
    UNIX pine
  32. In which vi mode do you actually type-in the text?
    Insert Mode
  33. When typing UNIX code or commands UNIX is case-sensitive.
    True
  34. What is the fundamental purpose of e-mail?
    To provide the ability to communicate via a permanent record medium
  35. Which of the following keystroke commands in pico save your edits?
    <Ctrl-O>
  36. The UNIX shell program acts as an interface between you and the UNIX kernel.
    True
  37. UNIX is a single user system.
    False
  38. The ls –l command displays the long listing of the files in the current directory if the permissions on the current directory are set to 440.
    True

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