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Flashcards

Linux Final

Kyle Healan Computer Science Inglês 72 flashcards

Flashcards do conjunto (72)

  1. 1One of the jobs of the kernel is to:Manage the system’s resources
  2. 2Unix is: (choose two)An operating system
    A trademark
  3. 3Linux is written in:C
  4. 4Source code refers to:A human readable version of computer software
  5. 5What is the standard option to provide a command line program to view its documentation?–help
  6. 6The command man -k is the same as the command apropos. True or False?True
  7. 7The whatis command is the same as man -w.False
  8. 8The directory where additional documentation for software packages most likely can be found is:/usr/share/doc
  9. 9Hidden files are files that begin with what character?A period (.)
  10. 10What option for the ls command will display all files, including hidden files?-a
  11. 11The top-level directory on a Linux system is represented as:/
  12. 12Is the following path absolute or relative? /etc/pppAbsolute
  13. 13Is the following path absolute or relative? sysadmin/DocumentsRelative
  14. 14Compression on a file works by:Removing redundant information
  15. 15In general, for which of the following would you want to use lossless compression?A log file
  16. 16Lossy compression: (choose three)Sacrifices some quality
    Usually results better compression than lossless
    Is often used with images
  17. 17You type gzip myfile.tar. What happens? (choose two)myfile.tar is removed
    myfile.tar.gz holds a compressed version of myfile.tar
  18. 18Error messages generated by commands are sent where by default?STDERR
  19. 19A successful command will print output to STDOUT. True or False?True
  20. 20Which of the following commands will direct error messages to the file, error.log? (choose one)ls /root 2> error.log
  21. 21A pipe allows you to……send the output of one command to another.
  22. 22Channel 2 is:STDERR
  23. 23The echo command:Is used to output text to the console
  24. 24A file begins with #!/bin/csh. This means:Running the script will invoke /bin/csh to interpret the rest of the file
  25. 25Which are appropriate editors for writing shell scripts? (choose two)nano
    vi
  26. 26Most of nano’s commands take the form of:Control and another character
  27. 27What does this shell script do? FOO=/tmp/foo if [ ! –d $FOO ]; then mkdir $FOO fiCreates /tmp/foo if it does not exist
  28. 28Which of the following are valid CPU types for Intel-based platforms? (choose two)64 bit
    32 bit
  29. 2964 bit platforms can access more memory than 32 bit platforms. True or False?True
  30. 30What does the acronym RPM mean?RPM Package Management
  31. 31One way to install new software on a Linux system is to use a package management system. True or False?True
  32. 32When you execute the dmesg command, the system displays messages that are generated by the kernel. True or False?True
  33. 33Which of the following are package management commands for distributions with software distributed in files ending in .deb? (choose three)All except rpm
  34. 34Which of the following are package management commands for distributions with software distributed in files ending in .rpm? (choose three)All except apt-get
  35. 35Which of the following would be considered a host?A printer attached to the network via an IP address
  36. 36A service is…a feature provided by one computer to another.
  37. 37A network packet contains … (choose two)the IP address of the source machine.
    …the IP address of the destination machine.
  38. 38Only servers have hostnames. True or False?False
  39. 39Which files contain user account information? (choose two)/etc/passwd
    /etc/shadow
  40. 40Which user can view the /etc/shadow file?The root user
  41. 41Which command will display the UID, GID and groups your current user belongs to?id
  42. 42Each user belongs to at least one group. True or False?True
  43. 43Which command will display the users that are currently logged in to the system?who
  44. 44UIDs 1-500 are usually reserved for what kind of users?System accounts, such as server processes
  45. 45If a user is deleted, the files and directories that the user owned……will show a UID as the owner, but not user name.
  46. 46Which of the following options for the useradd command allows root to specify the UID to be associated with the account?-u
  47. 47Which of the following options for the useradd command allows root to specify supplementary groups the user will be a member of?-G
  48. 48On a system that does not use UPG, the useradd command will also create a user group. For example, user bob, group bob. True or False?False
  49. 49Which of the following commands set “other” permissions on file to r-x?chmod o=rx file
  50. 50Which of the following commands sets “other” permissions on file to r-x?chmod 775 file
  51. 51Only one set (user, group, other) of permission can be changed at once using the symbolic method. True or False?False
  52. 52Which of the following are methods for setting permissions using the chmod command? (choose two)octal
    symbolic
  53. 53The chown command can be used to change the owner and group of a file. True or False?True
  54. 54The Samba application is a:File Server
  55. 55Which of the following are examples of desktop software? (choose two)Music player
    Web browser
  56. 56If you wanted to set up a blog, which software would be most helpful?WordPress
  57. 57Which of the following pieces of software deal with file sharing? (choose three)Netatalk
    Samba
    NFS
  58. 58If you wanted to create and print an invoice, which software could you use?LibreOffice
  59. 59Which of the following is true about graphical mode? (choose three)You have menus and tools to help you find what you are looking for
    You access this mode by logging into a graphical display
    After login, you are provided with a desktop
  60. 60Which of the following is provided by a graphical interface that isn’t normally provided to a non graphical interface? (choose four)All except Shell
  61. 61A server is likely to be running in graphical mode. True or False?False
  62. 62In graphical mode, you can get to a shell by running which applications? (choose two)xterm
    terminal
  63. 63Which of the following are traits of a multiuser operating system? (choose three)Users can protect their information from other users
    Resources are shared between users
    Many users can log in simultaneously with a unique account
  64. 64Select all the applications that provide access to the Command Line Interface (CLI)? (choose two)Terminal window
    Virtual Terminal
  65. 65Which environment variable contains a list of directories that is searched for commands to execute?PATH
  66. 66Select the command that can report the location of a command:which
  67. 67A pair of single quotes ( ‘ ) will prevent the shell from interpreting any metacharacter. True or False?True
  68. 68The /tmp directory is a temporary directory and will not exist on a system at all times. True or False?False
  69. 69The /var directory has files that change over time. True or False?True
  70. 70The “sticky bit” permission……prevents others from removing files they don’t own from a common directory.
  71. 71Which of the following commands will set the “sticky bit” on /shared ?chmod 1777 /shared
  72. 72The “setuid” permission……allows a command to be run as the file owner.

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Descrição
Computer Science FlashCards sobre Linux Final, criado por Kyle Healan em 17-07-2018.
Criado por
Kyle Healan
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