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Which of the following countermeasures helps security professionals protect a network against DoS/DDoS attacks?Implement cognitive radios in the physical layerNever perform input validationAllow all inbound packets originating from the service portsUse functions such as gets and strcpy

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Which of the following countermeasures helps security professionals protect a network against DoS/DDoS attacks?Implement cognitive radios in the physical layerNever perform input validationAllow all inbound packets originating from the service portsUse functions such as gets and strcpy

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Solution 1

None of the options provided are effective countermeasures against DoS/DDoS attacks.

  1. Implementing cognitive radios in the physical layer: This is not a countermeasure against DoS/DDoS attacks. Cognitive radios are used in wireless networks to improve spectrum utilization, but they do not provide protection against DoS/DDoS attacks.

  2. Never perform input validation: This is actually a bad practice. Input validation is a crucial security measure that can prevent many types of attacks, including some forms of DoS/DDoS attacks.

  3. Allow all inbound packets originating from the service ports: This is also a bad practice. Allowing all inbound packets can actually make a network more vulnerable to DoS/DDoS attacks.

  4. Use functions such as gets and strcpy: These functions are known to be vulnerable to buffer overflow attacks, which can lead to DoS/DDoS attacks. Therefore, using these functions is not a good countermeasure against DoS/DDoS attacks.

Effective countermeasures against DoS/DDoS attacks include rate limiting, IP filtering, and using firewalls and intrusion detection/prevention systems.

This problem has been solved

Solution 2

None of the options provided are effective countermeasures against DoS/DDoS attacks.

  1. Implementing cognitive radios in the physical layer: This is not a countermeasure against DoS/DDoS attacks. Cognitive radios are used in wireless networks to improve spectrum utilization, but they do not provide protection against DoS/DDoS attacks.

  2. Never perform input validation: This is actually a bad practice. Input validation is a crucial security measure that can prevent many types of attacks, including some forms of DoS attacks.

  3. Allow all inbound packets originating from the service ports: This is also a bad practice. Allowing all inbound packets can actually make a network more vulnerable to DoS/DDoS attacks.

  4. Use functions such as gets and strcpy: These functions are known to be vulnerable to buffer overflow attacks, which can lead to DoS conditions. Therefore, using these functions is not a good practice for preventing DoS/DDoS attacks.

Effective countermeasures against DoS/DDoS attacks typically involve rate limiting, filtering, and anomaly detection.

This problem has been solved

Solution 3

None of the options provided are effective countermeasures against DoS/DDoS attacks.

  1. Implementing cognitive radios in the physical layer: This is not a countermeasure against DoS/DDoS attacks. Cognitive radios are used in wireless networks to improve spectrum utilization, but they do not provide protection against DoS/DDoS attacks.

  2. Never perform input validation: This is actually a bad practice. Input validation is a crucial security measure that can prevent many types of attacks, including some forms of DoS/DDoS attacks.

  3. Allow all inbound packets originating from the service ports: This is also a bad practice. Allowing all inbound packets can actually make a network more vulnerable to DoS/DDoS attacks.

  4. Use functions such as gets and strcpy: These functions are known to be vulnerable to buffer overflow attacks, which can lead to DoS/DDoS attacks. Therefore, using these functions is not a good countermeasure against DoS/DDoS attacks.

Effective countermeasures against DoS/DDoS attacks include rate limiting, IP filtering, and using firewalls and intrusion detection/prevention systems.

This problem has been solved

Solution 4

None of the options provided are effective countermeasures against DoS/DDoS attacks.

  1. Implementing cognitive radios in the physical layer: This is not a countermeasure against DoS/DDoS attacks. Cognitive radios are used in wireless networks to optimize the use of the radio spectrum, but they do not provide protection against these types of attacks.

  2. Never perform input validation: This is actually a bad practice. Input validation is a crucial security measure that can prevent many types of attacks, including some forms of DoS/DDoS attacks.

  3. Allow all inbound packets originating from the service ports: This is also a bad practice. Allowing all inbound packets can actually make a network more vulnerable to DoS/DDoS attacks.

  4. Use functions such as gets and strcpy: These functions are known to be vulnerable to buffer overflow attacks, which can lead to DoS/DDoS attacks. Therefore, using these functions is not a good countermeasure.

Effective countermeasures against DoS/DDoS attacks include rate limiting, IP filtering, and anomaly detection.

This problem has been solved

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