1- Consider a distributed variant of the attack we explore in Problem 7.1. Assume the attacker has compromised a number of broadband-connected residential PCs to use as zombie systems. Also assume each such system has an average uplink capacity of 128 kbps. What is the maximum number of 500-byte ICMP echo request (ping) packets a single zombie PC can send per second? How many such zombie systems would the attacker need to flood a target organization using a 0.5-Mbps link? A 2-Mbps link? Or a10-Mbps link? Given reports of botnets composed of many thousands of zombie systems, what can you conclude about their controller’s ability to launch DDoS attacks on multiple such organizations simultaneously? Or on a major organization with multiple, much larger network links than we have considered in these problems? (Note: this assingment is from computer security practice and principle (book).
2- find software security metrics and briefly explain each one ( three metrics other not the source code metrics)
reference can be used in this assignment is (Significance of Security Metrics in Secure Software Development Article · September 2017)
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