No, your Xbox cannot get a virus. So, no need for antivirus.
Smart-phones technically do not need antivirus. You can install it if you need it.
yes we need to install antivirus apart from windows defender
Some features of Chrome need an antivirus. Some features need firewall access to open the application.
yeah they need it
No
Simply download the installer for the antivirus, then run it. With some antivirus software you don't even need to install it!
Yes, if you are concerned Crowcom has a list of Antivirus apps for your phone
Antivirus software will notice about the virus,malware,spyware etc
for the xbox you need a controller. for xbox connect you don't need a controller.
Cell phones don't get viruses and don't need antivirus software.
no you don't need an anti virus