The designs on the map of the GPS system Im would think but can you be more specific?
Answer:
A. Database Management System
Explanation:
A Database Management System or DBMS is a set of programs that allow the DB administrator to the information extraction, storage and modification out of a database. It also provides tools to add, erase, modify or even analyze the data within the DB. Some examples of DBMS are MySQL, mongo DB, Ms SQL Server, etc.
Answer: No, because all you need is WiFi for both devices and a messaging app to do it for free like iMessage.
Explanation: Please correct me if I am wrong! :)
Answer:
packet filtering
Explanation:
We can use a packet filtering firewall, for something like this, reasons because when visiting a site these types of firewalls should block all incoming traffic and analyze each packet, before sending it to the user. So if the packet is coming from a malicious origin, we can then drop that packet and be on our day ;D