b) Match the following tools with their respective purposes: Tools: Wireshark, John-the-ripper, Metasploit, Gdb; Purpose: Password cracking, Exploit delivery, Packet inspection, program debugging. [4 Marks] c) Briefly describe the 7 properties used to assess a Biometrics identifier [7 Marks] d) Explain and illustrate the notion of security/usability trade-off [6 Marks] e) Explain the buffer-overflow vulnerability, and how to defend against it. [10 Marks] f) Explain what is k-anonymity for database privacy, and illustrate how it can be achieved [10 Marks]