CNIT 340 exam 1

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---------- no permissions

000 (binary permission)

---x--x--x execute for owner, group, and others

111 (binary permission)

--w--w--w- write for owner, group, and others

222 (binary permission)

--wx-wx-wx write and execute for owner, group, and others

333 (binary permission)

-r--r--r-- read for owner, group, and others

444 (binary permission)

-r-xr-xr-x read and execute for owner, group, and others

555 (binary permission)

-rw-rw-rw- read and write for owner, group, and others

666 (binary permission)

-rwx------ read, write, & execute only for owner

700 (binary permission)

-rwxr---- owner can read, write, and execute, group can only read, others have no permission

740 (binary permission)

-rwxrwx--- read, write, & execute for owner and group

770 (binary permission)

-rwxrwxrwx read, write, & execute for owner, group and others

777 (binary permission)

-All of the above should have their own partition

According to lecture, all of the following except ____ should have its own partition -/ -/home -/var -/etc -all of the above should have their own partition

True

By default, all function variables are global. TRUE or FALSE

", ', and \

Can be used to extend a line

syslog

Can notifiy admins if important files are changed

False

Compiling software from source is preferred because dependencies are automatically added in installation. TRUE or FALSE

lpr

adds a job to the print queue - BSD

root filesystem

before any filesystem can be used it must be mounted to the _____?

array variables

can hold multiple elements at a time

ps

command to list all running processes

kill

command used to kill a currently running process

SysV run level 4

currently not used - what is correct SysV run level?

SysV run level 2

multi-user mode (non-networked) - what is correct SysV run level?

True

UNIX is command line only. TRUE or FALSE

CUPS

UNIX printing approach supports windows printing clients

True

Unix has only one file system. TRUE or FALSE

1. boot loader 2. kernel starts init or systemd 3. check integrity of file systems 4. mount local disks 5. designates a paging area 6. cleans up filesystem 7. starts system server processes 8. initializes the network and launches network daemons

Unix system startup order

unenforce

Used to generate SELinux policy code from logging

^ or !

Used to negate a character match

-R

Used to perform actions on directories and subdirectories

-f

Used to skip confirmations

3

What SysV run level is multi-user.target run at

0

What SysV run level is poweroff.target ran at

1

What SysV run level is rescue.target ran at

/etc/passwd and /etc/group

What UNIX config file associates users with groups?

/etc/passwd

What UNIX config file contains the list of users?

IP and route

What command or file is used to set the default router of a UNIX system?

chkconfig <service> on

What is the Sys V equivalent of systemctl enable <service>

smb.conf

What is the main config file for SAMBA?

3

What is the most commonly used run more for servers

rwxr-xr--

What is the resulting permission sequence for the following UNIX command? chmod 754 /directory/file

2

What run level is multi-user mode (non-networked) ran at

make

What utility typically automates the process of installing software from source code?

grep

Which command returns lines from a file containing a search string?

/etc/hostname or /etc/hosts

Which file stores the Fully Qualified Domain Name (FQDN) for a UNIX system?

drwx------ tmiller tmiller

Which of the following is most reasonable set feor tmiller's home directory as shown in ls -l

Install via CUPS web interface & use lpadmin command

Which of the following is the preferred method to add a printer in CUPS

False

You should avoid meta-characters in filenames because you will not be able to access the file. TRUE or FALSE

lpq

lists jobs that are currently in the print queue - BSD

/lost+found

lost files directory

SysV run level 6

shutdown and reboot state - what is correct SysV run level?

SysV run level S

single user mode - what is correct SysV run level?

lp

submits a print job- SysV printing

SysV run level 1

system administration state - what is correct SysV run level?

/sbin

system binaries

/etc

system configuration informatoin

/tmp

temporary files

ln -s source target

this command creates symbolic links

-package managers/packages

this software installation technique includes yum and apt

find

used to find files

?

used to represent one of a single character

/home

user directories

False

user-defined variables do not need to start with a letter or underscore, and can start with numbers. TRUE or FALSE

compares directories

what does dircmp do?

/etc/fstab

where a list of filesystems to automatically mount is stored in a config file

/usr

where additionally installed software is located

stderr

where error messages are sent

/bin

where executables for basic operation are located

stdin

where input to the application is sourced

stdout

where output from the application is sourced

/var

where spooling, cache, and log files are located

systemctl

In CentOS 7 Linux, which command can be used to change the run level?

setenforce

Disables SELinux protections

\

Escapes a single character

'

Escapes multiple instances of all meta characters

False -umount

Media is unmounted via unmount command. TRUE or FALSE

chown

Ownership is changed with this command

$ and "

Preserves the meta character meaning

False. No daemons or networking

Single user mode has networking and daemons running. TRUE or FALSE

symbolic links

The files in the /etc/rc3.d directory are

True

The order is as important as the content of packet filter rules. TRUE or FALSE

-the individual owner -the group owner -everyone

The three owners of every file/directory are

chgrp

This can be used to change only the owning group

-package managers/packages -ports collection

This software installation technique automatically handles dependencies

-ports collection

This software installation technique is FreeBSD specific

compile from source

This software installation technique is natively supported by multiple UNIX versions (BSD, Linux, AIX, HPUX, etc.)

True

To have tail keep a file open so that updates to the file can be monitored use the -f option. TRUE or FALSE

SysV run level 5

firmware state - used for special hardware types of tasks (normally not used) - what is correct SysV run level?

False

if you know how to administer one flavor of unix you know how to administer them all. TRUE or FALSE

adm

owns the accounting files

bin

owns the executables for most user commands

sys

owns the system files

/dev

placeholders for devices

/proc

placeholders for running processes

SysV run level 0

power down state - system is halted

lpd

printer daemon -BSD

*

regex expression that matches zero or more of the preceding character

$

regex expression that represents the end of a line

SysV run level 3

remote filesharing state (Networking turned on) - what is correct SysV run level?

lqrm

removes jobs that are currently in the print queue - BSD


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