CNIT 34010 Exam 1

CNIT 34010 Exam 1 What is UNIX? - a collection of related operating systems What are the two major divisions of UNIX? - BSD and SVR4 T/F: UNIX commands and filenames are case sensitive. - True T/F: UNIX has no native graphical user interface. - True T/F: The command used to find the processes running on a UNIX machine is procstat. - False; ps T/F: It is better to use su than to log into a system directly as root. - True What is the UNIX command form? - command -flags operand What is the operand of the command form? - the target of the command What is the superuser account? - root T/F: UNIX allows for multiple administrator accounts. - False In UNIX UID 0 (zero) has special meaning. UID 0 is by definition the _____________ user. - root T/F: The tape archive (tar) command merges and compresses multiple files into a single file. - False T/F: In UNIX, groups can contain other groups. - False T/F: UNIX password hashes are kept in the /etc/passwd file. - False; /etc/shadow The configuration file where the list of DNS servers to use is set: - /etc/ T/F: The BSD ports collection installs software via source code. - True The configuration file where the fully qualified domain name (such as ) is set: - /etc/hosts T/F: A major consideration when installing UNIX software is handling dependencies. - True T/F: In UNIX the default gateway is specified using the route command. - True In which file would you find the user's primary group? - /etc/passwd T/F;IP addresses can be checked in UNIX using the ipconfig command. - False; ifconfig What are the types of shells? - 1. Login Shell 2. Interactive Shell 3. Non-Interactive Shell - started automatically at user login - specified in the /etc/passwd file - when closed, the user logs out - login shell the command line parser used to interact with the system - UNIX Shell a non-login shell into which users enter commands - interactive shell - normally contains a script - inherits environment variables from parent shell - non-interactive shell T/F: In UNIX, everything is treated as a file. - True introduced command line history and tab completion - /bin/ksh (Korn Shell) standard scripting shell for most Linux distributions - /bin/bash The only hard mount point in UNIX: - root executable files required for basic operations - /bin placeholders for devices - /dev configuration information - /etc system binaries - /sbin placeholders for running processes - /proc user directories - /home installed applications - /usr variable files: logging, spooling , cache - /var temporary files - /tmp T/F: Filesystems can be used without being mounted to the root filesystem. - False T/F: Filesystems must be mounted over an existing directory before being used. - True command in which filesystems are mounted - mount /dev/device /mount_point command in which filesystems are unmounted - umount /mount_point The configuration file that lists filesystems to automatically mount: - /etc/fstab Required partitions: - /