Mike, a security engineer, was recently hired by BigFox Ltd. The company recently experienced disastrous DoS attacks. The management had instructed Mike to build defensive strategies for the…

Allowing unsafe functions like `gets` and `strcpy` introduces buffer overflow vulnerabilities, which are software flaws, not countermeasures for physical layer jamming.

Allowing the transmission of all types of addressed packets at the ISP level would increase the network's attack surface and could facilitate DoS attacks, not thwart them.

Jamming and scrambling attacks typically target the physical layer of communication, aiming to disrupt signal transmission. Implementing cognitive radios enables devices to intelligently detect and adapt to changes in the radio environment, such as jammed frequencies, by dynamically selecting clear channels or modifying transmission parameters, thereby mitigating these physical layer DoS attacks.

Disabling TCP SYN cookie protection makes a system more vulnerable to SYN flood attacks, a common type of DoS, rather than defending against it.