John works as a professional Ethical Hacker. He has been assigned a project to test the security of www.we- are-secure.com. He successfully performs a brute force attack on the We-are-secure server.
Now, he suggests some countermeasures to avoid such brute force attacks on the We-are-secure server.
Which of the following are countermeasures against a brute force attack?
Each correct answer represents a complete solution. Choose all that apply.

Which of the following is an authentication protocol used by clients to dial-in to computers running Windows
2000 Server?

Which of the following tools is an automated tool that is used to implement SQL injections and to retrieve data from Web server databases?

Which of the following terms is synonymous with the willful destruction of another person's property?

Which of the following is NOT a principle and practice of the 'Minimize the number of highconsequence targets' principle?