Which of the following is not an open source software?

(A). Linux (B). Android (C). Mozilla Firefox (D). Microsoft Office Answer: Microsoft Office

Which of the following is open-source software? (A). Joomla (B). Android (C). Drupal (D). All of these Answer: Microsoft Office

Difference between Open Source Software and Closed Source Software

OPEN SOURCE SOFTWARE	CLOSED SOURCE SOFTWARE
OSS stands for Open Source Software.	OSS stands for Closed Source Software.
The source code is public in Open Source Software.	The source code is protected in closed-source software.
All end users can access and use the source code of Open source software.	The general public or End users can’t access and use the source code of closed-source software.
There is a more chance of failure of Open source software.	There is less chance of failure of Closed source software.
Open Closed software can be installed by anyone on any computer.	The end user required a license before installation of Closed source software into any computer.
The price is very less.	The price is high.
Open Source Software can be purchased with its source code.	Closed Source Software can’t be purchased with its source code.
Anyone can modify the code of Open Source Software.	Only programmers or allowed persons can only modify the code of closed-source software.
No one is responsible if anything happened to Open source software.	The Software house is responsible if anything happened to closed-source software.
There are no so many limitations on users based on usability and modification of software.	There are so many limitations on users based on usability and modification of software.

Open-source Software	Closed Source Software
Taiga	Adobe Reader
TurboCASH	Adobe Flash
OpenCart	Adobe Flash Player
Datawrapper	Microsoft Windows
OpenCms	Java
Thunderbird	Skype
Draw.io	Virtual Box
Apache OpenOffice	Google earth
WooCommerce	WinRAR
SugarCRM Community Edition	Microsoft office
GanttProject	mac OS
ADempiere	Google Chrome
Claws Mail	DB2 Express-C
OroCRM	VMwareServer
Kimai	Intel Fortran Compiler PE
Geary	Java
Redmine	JBuilder 2008 Turbo
xTuple	Adobe Reader
Fat Free CRM	Google Desktop
PrestaShop	Google Earth
WordPress	Picasa
phpList	Skype
WSDesk – ELEX WordPress HelpDesk & Customer Ticketing System	Google Docs & Spreadsheets
Clockify	Lotus Symphony
Calligra	Opera
Charted	WebSphere Application Server
Magestore	Quasar Accounting
TiddlyMap	Intel C++ Compiler PE
NeoOffice	AVG Anti-Virus
Odoo	Rainlendar Lite
Highcharts	VirtualBox
GIMP	Adobe Flash
Inkscape	Avast!
Blender
LibreOffice
Drupal
GnuCash
digiKam
Wireframe.cc
ImageMagick
SuiteCRM
eHour
Django
OpenBravo
eM Clients
Zen Cart
Joomla
OpenProject
XMind
MyCollab
Basilisk
Brave Browser
Firefox
Chromium
Pale Moon
Waterfox
Dooble