Which of the following is designed to protect the Internet resolvers (clients) from forged DNS data created by DNS cache poisoning?

Which of the following functions in c/c++ can be the cause of buffer overflow?
Each correct answer represents a complete solution. Choose two.

Which of the following tools can be used for network sniffing as well as for intercepting conversations through session hijacking?

In which of the following attacks does an attacker use packet sniffing to read network traffic between two parties to steal the session cookie?

John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.we-are-
secure.com. He has successfully completed the following steps of the pre-attack phase:
* Information gathering
* Determining network range
* Identifying active machines
* Finding open ports and applications
* OS fingerprinting
* Fingerprinting services
Now John wants to perform network mapping of the We-are-secure network. Which of the following tools can he use
to accomplish his task?
Each correct answer represents a complete solution. Choose all that apply.