CompTIA Linux+ Ch. 4 Review Questions

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You noticed a file in your home directory that has a + symbol appended to the mode. What does this indicate?

Additional entries exist within the ACL of the file that can be viewed using the getfacl command.

What was created to define a standard directory structure and common file location for Linux?

FHS

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?

False

When applied to a directory, the SGID special permission _______________.

causes all new files created in the directory to have the same group membership as the directory, and not the entity that created them

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.)

chmod u=x,g=r,o=wx file1

Which of the following commands will change the user ownership and group ownership of file1 to user1 and root, respectively?

chown user1:root file1

What are the three standard Linux permissions?

execute, read, write

Which command do you use to rename files and directories?

mv

The default permissions given by the system prior to analyzing the umask are _________ for directories and _____________ for files.

rwxrwxrwx and rw-rw-rwe.

The which command _______________.

searches for a file only in directories that are in the PATH variable

What does the /var directory contain?

spools and log files

Given the following output from the ls command, how many files are linked with file1? drwxr-xr-x 3 root root 4096 Apr 8 07:12 Desktop -rw-r--r-- 3 root root 282 Apr 29 22:06 file1 -rw-r--r-- 1 root root 282 Apr 29 22:06 file2 -rw-r--r-- 4 root root 282 Apr 29 22:06 file3 -rw-r--r-- 2 root root 282 Apr 29 22:06 file4 -rw-r--r-- 1 root root 282 Apr 29 22:06 file5 -rw-r--r-- 1 user1 sys 282 Apr 29 22:06 file6

two

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?

- - -r--rw-

What does the mv command do? (Choose all that apply.)

- It moves a directory. - It moves a file.

The command chmod 317 file1 would produce which of the following lines in the ls command?

--wx--xrwx 1 user1 root 0 Apr 29 15:40 file1

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?

False

Only the root user can modify a file that has the immutable attribute set. True or False?

False

What must a user do to run cp or mv interactively and be asked if she wants to overwrite an existing file?

Just type cp or mv, because they run in interactive mode by default.

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?

Run chown and list the root user as the new owner.

When you change the data in a file that is hard-linked to three others, _____________.

The data in the file you modified as well as the data in all hard linked files are modified as they share the same data and all have the same inode and file size.

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?

True

After typing the ls -F command, you see the following line in the output: -rw-r-xr-- 1 user1 root 0 Apr 29 15:40 file1 What does this mean?

User1 has read and write permission, members of the root group have read and execute permissions, and all others have read permissions to the file


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