Unix 2

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Unix 2
2012-09-04 17:40:48

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.
  6. When a user has execute permission for a directory UNIX allows the user to execute
    all executable files in the directory.
  7. Organizing your files is critical to working in UNIX.
  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.
  10. A frame in emacs can consist of many tiled windows.
  11. UNIX does not support file types.
  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.
  14. The routines that communicate directly with hardware are all concentrated in the
    UNIX __________.
  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
  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.
  19. Under UNIX __________ devices hold files.
  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.
  23. You need only write permission for a directory in order to create a file in it.
  24. A user in a UNIX system can be part of more than one user group
  25. Although they may show up in a file name, UNIX itself does not support or offer special recognition of file
  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.
  29. Latency time for a disk depends on how fast its head can move.
  30. You don't really need to know the exact syntax of a UNIX command to use it.
  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.
  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?
  36. The UNIX shell program acts as an interface between you and the UNIX kernel.
  37. UNIX is a single user system.
  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.