Term
| access control list (ACL) |
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Definition
| The section within an inode of a file or directory that lists the permissions assigned to users and groups on the file or directory. |
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Term
| chattr (change attributes) command |
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Definition
| The command used to change filesystem attributes for a Linux file. |
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Term
| chgrp (change group) command |
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Definition
| The command used to change the group owner of a file or directory. |
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Term
| chmod (change mode) command |
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Definition
| The command used to change the mode (permissions) of a file or directory. |
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Term
| chown (change owner) command |
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Definition
| The command used to change the owner and group owner of a file or directory. |
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Term
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Definition
| The command used to create copies of files and directories. |
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Term
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Definition
| A filesystem allocation unit in which the data that makes up the contents of the file as well as the filename are stored. |
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Term
| Filesystem Hierarchy Standard (FHS) |
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Definition
| A standard outlining the location of set files and directories on a Linux system. |
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Term
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Definition
| The command used to find files on the filesystem using various criteria. |
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Term
| getfacl (get file ACL) command |
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Definition
| The command used to list all ACL entries for a particular Linux file or directory. |
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Term
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Definition
| When used in the mode of a certain file or directory, the collection of users who have ownership of that file or directory. |
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Term
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Definition
| A file joined to other files on the same filesystem that shares the same inode. |
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Term
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Definition
| The portion of a file that stores information on the file's attributes, access permissions, location, ownership, and file type. |
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Term
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Definition
| The collection of inodes for all files and directories on a filesystem. |
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Term
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Definition
| The mode that file management commands use when a file can be overwritten; the system interacts with a user asking for the user to confirm the action. |
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Term
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Definition
| The command used to create hard and symbolic links. |
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Term
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Definition
| The command used to locate files from a file database. |
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Term
| lsattr (list attributes) command |
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Definition
| The command used to list filesystem attributes for a Linux file. |
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Term
| mkdir (make directory) command |
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Definition
| The command used to create directories. |
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Term
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Definition
| The part of the inode that stores information on access permissions. |
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Term
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Definition
| The command used to move/rename files and directories. |
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Term
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Definition
| When used in the mode of a certain file or directory, all the users on the Linux system. |
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Term
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Definition
| The user whose name appears in a long listing of a file or directory and who has the ability to change permissions on that file or directory. |
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Term
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Definition
| A variable that stores a list of directories that will be searched in order when commands are executed without an absolute or relative pathname. |
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Term
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Definition
| A list that identifies who can access a file or folder and their level of access. |
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Term
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Definition
| The default group to which a user belongs. |
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Term
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Definition
| A term referring to itself and its own contents; a recursive search includes all subdirectories in a directory and their contents. |
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Term
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Definition
| The command used to remove files and directories. |
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Term
| rmdir (remove directory) command |
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Definition
| The command used to remove empty directories. |
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Term
| setfacl (set file ACL) command |
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Definition
| The command used to modify ACL entries for a particular Linux file or directory. |
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Term
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Definition
| The portion of a command that refers to the file or directory from which information is taken. |
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Term
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Definition
| The portion of a filesystem that stores critical information, such as the inode table and block size. |
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Term
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Definition
| A pointer to another file on the same or another filesystem; commonly referred to as a shortcut. |
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Term
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Definition
| The portion of a command that refers to the file or directory to which information is directed. |
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Term
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Definition
| The command used to create new files. It was originally used to update the time stamp on a file. |
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Term
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Definition
| A special variable used to alter the permissions on all new files and directories by taking away select default file and directory permissions. |
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Term
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Definition
| The command used to view and change the umask variable. |
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Term
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Definition
| When used in the mode of a certain file or directory, the owner of that file or directory. |
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Term
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Definition
| The command used to locate files that exist within directories listed in the PATH variable. |
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Term
| A symbolic link is also known as a soft link and is depicted by an @ symbol appearing at the beginning of the filename when viewed using the ls -l command. True or False? |
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Definition
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Term
What was created to define a standard directory structure and common file location for Linux?
a. FSH
b. X.500
c. FHS
d. root directory |
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Definition
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Term
| There is no real difference between the “S” and “s” special permissions when displayed using the ls -l command. One just means it is on a file, and the other means that it is on a directory. True or False? |
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Definition
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Term
The default permissions given by the system prior to analyzing the umask are ____________ for directories and ____________ for files.
a. rw-rw-rw- and rw-rw-rw-
b. rw-rw-rw- and r--r--r--
c. rw-rw-rw- and rwxrwxrwx
d. rwxrwxrwx and rw-rw-rw-
e. rwxrw-rw- and rwx-rw-rw- |
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Definition
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Term
What must a user do to run cp or mv interactively and be asked if she wants to overwrite an existing file?
a. There is no choice because the new file will overwrite the old one by default.
b. Type interactive cp or interactive mv.
c. Type cp -i or mv -i.
d. Type cp -interactive or mv -interactive.
e. Just type cp or mv because they run in interactive mode by default. |
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Definition
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Term
The root user utilizes the chgrp command to give ownership of a file to another user. What must the root user do to regain ownership of the file?
a. Run chgrp again listing the root user as the new owner.
b. Nothing, because this is a one-way, one-time action.
c. Have the new owner run chgrp, and list the root user as the new owner.
d. Run chown and list the root user as the new owner. |
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Definition
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Term
After typing the ls -F command, you see the following line in the output:
-rw-r-xr-- 1 user1 root 0Apr 29 15:40 file1
What does this mean?
a. User1 has read and write, members of the root group have read and execute, and all others have read permissions to the file.
b. Members of the root group have read and write, user1 has read and execute, and all others have read permissions to the file.
c. All users have read and write, members of the root group have read and execute, and user1 has read permissions to the file.
d. User1 has read and write, all others have read and execute, and members of the root group have read permissions to the file. |
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Definition
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Term
After typing the command umask 731, the permissions on all subsequently created files and directories will be affected. In this case, what will be the permissions on all new files?
a. rw-rw-rw-
b. rwxrw-r--
c. ---r--rw-
d. ----wx--x |
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Definition
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Term
You noticed a file in your home directory that has a + symbol appended to the mode. What does this indicate?
a. Special permissions have been set on the file.
b. The file has one or more files on the filesystem that are hard linked to it.
c. The sticky bit directory permission has been set on the file and will remain inactive as a result.
d. Additional entries exist within the ACL of the file that can be viewed using the getfacl command. |
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Definition
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Term
When you change the data in a file that is hard-linked to three others, ____________.
a. only the data in the file you modified is affected
b. only the data in the file you modified and any hard-linked files in the same directory are affected
c. the data in the file you modified and the data in all hard-linked files are modified because they have different inodes
d. the data in the file you modified as well as the data in all hard-linked files are modified because they share the same data and all have the same inode and file size |
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Definition
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Term
The command chmod 317 file1 would produce which of the following lines in the ls command?
a. --w-r--rwx 1 user1 root 0 Apr 29 15:40 file1
b. --wx--xrwx 1 user1 root 0 Apr 29 15:40 file1
c. -rwxrw-r-x 1 user1 root 0 Apr 29 15:40 file1
d. --w-rw-r-e 1 user1 root 0 Apr 29 15:40 file1 |
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Definition
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Term
Which of the following commands will change the user ownership and group ownership of file1 to user1 and root, respectively?
a. chown user1:root file1
b. chown user1 : root file1
c. This cannot be done because user and group ownership properties of a file must be modified separately.
d. chown root:user1file1
e. chown root : user1file1 |
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Definition
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Term
What does the /var directory contain?
a. various additional programs
b. spools and log files
c. temporary files
d. files that are architecture-independent
e. local variance devices |
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Definition
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Term
What does the mv command do? (Choose all that apply.)
a. It makes a volume.
b. It makes a directory.
c. It moves a directory.
d. It moves a file. |
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Definition
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Term
A file has the following permissions: r----x-w-. The command chmod 143 would have the same effect as the command ____________. (Choose all that apply.)
a. chmod u+x-r,g+r-x,o+w file1
b. chmod u=w,g=rw,o=rx file1
c. chmod u-r-w,g+r-w,o+r-x file1
d. chmod u=x,g=r,o=wx file1
e. chmod u+w,g+r-w,o+r-x file1
f. chmod u=rw,g=r,o=r file1 |
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Definition
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Term
The which command ____________.
a. can only be used to search for executables
b. searches for a file in all directories, starting from the root
c. is not a valid Linux command
d. searches for a file only in directories that are in the PATH variable |
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Definition
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Term
| Hard links need to reside on the same filesystem as the target, whereas symbolic links need not be on the same filesystem as the target. True or False? |
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Definition
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Term
When applied to a directory, the SGID special permission ____________.
a. causes all new files created in the directory to have the same group membership as the directory, and not the entity that created them
b. cannot be used, because it is applied only to files
c. allows users the ability to use more than two groups for files that they create within the directory
d. causes users to have their permissions checked before they are allowed to access files in the directory |
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Definition
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Term
Which command do you use to rename files and directories?
a. cp
b. mv
c. rn
d. rename |
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Definition
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Term
What are the three standard Linux permissions?
a. full control, read-execute, write
b. read, write, modify
c. execute, read, write
d. read, write, examine |
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Definition
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