CNAB study guide (Linux OS, Windows
OS, and Networking) With Correct
Answers.
/bin Answer- Stores binary and executable files that launch applications. All users
have access to these applications.
/boot Answer- contains files needed to start up the computer, to include boot loader
and kernel activation files
/dev Answer- contains file pointers for character and block devices, which means
pointers to hard drives, flash drives, multimedia cards, external devices, and system
ports
/etc Answer- contains system config files and scripts
/home Answer- directory contains user profiles, desktops, and user profiles
/lib Answer- directory contains library files that are necessary for all files to work
/media Answer- directory used by hal, the Linux auto-mounter, to load external
devices for navigation
/opt Answer- directory contains optional software packages. Usually the contents of
X11 and your window manager and loaded into opt, but you can add whatever
programs you wish to this directory
/mnt Answer- this directory is used to load external devices that do not use hal
/proc Answer- directory is unique because it is not necessarily part of the file
system, but a virtual file system that provides access to kernel or system information
/root Answer- this is the home directory for your root or system administrator. It is
kept separate from the other users in cas ethe partition that the home is mounted on
fails
/sbin Answer- this directory has a functionality similar to bin, which means it
contains application executables, but rather than allowing all users to access these
programs it restricts access only to the root or admin
/tmp Answer- temporary storage location. All users have read and write rights to the
contents of this directory
, /usr Answer- largest directory on file system. Pretty much everything that doesn't
belong in the other directories is placed here. Contains program, documentation, and
kernel source code
/var Answer- directory contains most of the frequently changing files such as logging
files, cache files, and record locks
/boot/vmlinuz Answer- Linux kernel file
/dev/hda Answer- device file for the first IDE HDD
/dev/hdc Answer- device file for IDE CDROM
/dev/null Answer- output garbage can
/etc/bashrc Answer- contains system defaults and aliases
/etc/crontab Answer- shell script with cronjobs
/etc/exports Answer- information of the file system available on the network
/etc/fstab Answer- info of disk drive and their mount point
/etc/group Answer- information on security group
/etc/grub.conf Answer- grub bootloader config file
/etc/init.d Answer- service startup script
/etc/lilo.conf Answer- The bootloader LILO configuration file.
/etc/hosts Answer- information of IP addresses and corresponding host names
/etc/hosts/allow Answer- list of hosts allowed to access services on the local
machine
/etc/hosts.deny Answer- list of hosts denied access to services on local machine
/etc/inittab Answer- INIT process and their interaction at various run levels
/etc/issue Answer- Allows to edit the pre-login message
/etc/motd Answer- Message of the Day the users get upon login
/etc/modules.conf Answer- config files for system modules
/etc/mtab Answer- currently mounted blocks information
/etc/passwd Answer- contains password of system users in a shadow file, a security
implementation
OS, and Networking) With Correct
Answers.
/bin Answer- Stores binary and executable files that launch applications. All users
have access to these applications.
/boot Answer- contains files needed to start up the computer, to include boot loader
and kernel activation files
/dev Answer- contains file pointers for character and block devices, which means
pointers to hard drives, flash drives, multimedia cards, external devices, and system
ports
/etc Answer- contains system config files and scripts
/home Answer- directory contains user profiles, desktops, and user profiles
/lib Answer- directory contains library files that are necessary for all files to work
/media Answer- directory used by hal, the Linux auto-mounter, to load external
devices for navigation
/opt Answer- directory contains optional software packages. Usually the contents of
X11 and your window manager and loaded into opt, but you can add whatever
programs you wish to this directory
/mnt Answer- this directory is used to load external devices that do not use hal
/proc Answer- directory is unique because it is not necessarily part of the file
system, but a virtual file system that provides access to kernel or system information
/root Answer- this is the home directory for your root or system administrator. It is
kept separate from the other users in cas ethe partition that the home is mounted on
fails
/sbin Answer- this directory has a functionality similar to bin, which means it
contains application executables, but rather than allowing all users to access these
programs it restricts access only to the root or admin
/tmp Answer- temporary storage location. All users have read and write rights to the
contents of this directory
, /usr Answer- largest directory on file system. Pretty much everything that doesn't
belong in the other directories is placed here. Contains program, documentation, and
kernel source code
/var Answer- directory contains most of the frequently changing files such as logging
files, cache files, and record locks
/boot/vmlinuz Answer- Linux kernel file
/dev/hda Answer- device file for the first IDE HDD
/dev/hdc Answer- device file for IDE CDROM
/dev/null Answer- output garbage can
/etc/bashrc Answer- contains system defaults and aliases
/etc/crontab Answer- shell script with cronjobs
/etc/exports Answer- information of the file system available on the network
/etc/fstab Answer- info of disk drive and their mount point
/etc/group Answer- information on security group
/etc/grub.conf Answer- grub bootloader config file
/etc/init.d Answer- service startup script
/etc/lilo.conf Answer- The bootloader LILO configuration file.
/etc/hosts Answer- information of IP addresses and corresponding host names
/etc/hosts/allow Answer- list of hosts allowed to access services on the local
machine
/etc/hosts.deny Answer- list of hosts denied access to services on local machine
/etc/inittab Answer- INIT process and their interaction at various run levels
/etc/issue Answer- Allows to edit the pre-login message
/etc/motd Answer- Message of the Day the users get upon login
/etc/modules.conf Answer- config files for system modules
/etc/mtab Answer- currently mounted blocks information
/etc/passwd Answer- contains password of system users in a shadow file, a security
implementation
