What type of Penetration Testing is Larry planning to carry out?

Larry is an IT consultant who works for corporations and government agencies. Larry plans on shutting down the city’s network using BGP devices and zombies?

What type of Penetration Testing is Larry planning to carry out?
A . Router Penetration Testing
B . DoS Penetration Testing
C . Firewall Penetration Testing
D . Internal Penetration Testing

Answer: B