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Multiple Choice

What types of attacks are DNS servers vulnerable to? (Select 3 correct answers)

Cache poisoning is a significant attack vector for DNS servers, where an attacker injects malicious data into the DNS cache. This can lead to users being redirected to fraudulent websites or being served malicious content without their knowledge. This form of attack exploits the way DNS queries are cached to manipulate responses, making it a highly effective method for steering traffic away from legitimate services. Additionally, DNS servers are susceptible to man-in-the-middle attacks, where an attacker can intercept and potentially alter the communication between a user and a DNS server. By masquerading as a trusted entity during the DNS resolution process, attackers can divert traffic, leading to data breaches or unauthorized access. Both cache poisoning and man-in-the-middle attacks are critical issues that emphasize the need for secure DNS practices, such as DNSSEC (Domain Name System Security Extensions) implementation to safeguard against such vulnerabilities. While other types of attacks mentioned, like fork bomb or smurf attacks, are serious threats in different contexts, they do not directly target DNS operations in the same manner as the first two. Fork bombs typically exploit system resources, and smurf attacks generally focus on amplifying traffic to overwhelm a target, rather than manipulating DNS resolution processes.

Cache poisoning is a significant attack vector for DNS servers, where an attacker injects malicious data into the DNS cache. This can lead to users being redirected to fraudulent websites or being served malicious content without their knowledge. This form of attack exploits the way DNS queries are cached to manipulate responses, making it a highly effective method for steering traffic away from legitimate services.

Additionally, DNS servers are susceptible to man-in-the-middle attacks, where an attacker can intercept and potentially alter the communication between a user and a DNS server. By masquerading as a trusted entity during the DNS resolution process, attackers can divert traffic, leading to data breaches or unauthorized access.

Both cache poisoning and man-in-the-middle attacks are critical issues that emphasize the need for secure DNS practices, such as DNSSEC (Domain Name System Security Extensions) implementation to safeguard against such vulnerabilities.

While other types of attacks mentioned, like fork bomb or smurf attacks, are serious threats in different contexts, they do not directly target DNS operations in the same manner as the first two. Fork bombs typically exploit system resources, and smurf attacks generally focus on amplifying traffic to overwhelm a target, rather than manipulating DNS resolution processes.