Mike, a security engineer, was recently hired by BigFox Ltd$.$ The company recently experienced disastrous DoS attacks. The management hadinstructed Mike to build defensive strategies for the company's IT infrastructure to thwart DoS$/$DDoS attacks. Mike deployed somecountermeasures to handle jamming and scrambling attacks.What is the countermeasure Mike applied to defend against jamming and scrambling attacks?A$.$ Allow the transmission of all types of addressed packets at the ISP levelB. Disable TCP SYN cookie protectionC. Allow the usage of functions such as gets and strcpyD$.$ Implement cognitive radios in the physical layer