To securely connect part of Company X's network to part of Company Y's network, the recommended approach is to create a VPN (Virtual Private Network) between the two networks.
Option A) Creating a DMZ (Demilitarized Zone) between the two networks is not the best approach for securely connecting the networks. A DMZ is typically used to create a separate network segment that acts as a buffer zone between the internal network and the external network, usually for hosting public-facing services.
Option C) Creating a secure network connection between the two networks using a combination of Java sockets and JSSE (Java Secure Socket Extension) is not the most appropriate solution. While Java sockets and JSSE can provide secure communication, setting up a VPN is a more common and efficient method for securely connecting networks.
Option D) It is not accurate to say that it is not possible due to corporate firewalls blocking the connection. VPN technology is specifically designed to establish secure connections across networks, even if there are firewalls in place. Proper configuration of the firewalls can allow VPN traffic to pass through.
Therefore, the correct answer is B) Create a VPN between the two networks. This option provides a secure and encrypted connection between Company X's and Company Y's networks, allowing for the simulation to be run securely.