Please solve ALL questions carefully.. Thanks

13- A system administrator must protect a system to ensure passwords cannot be easily guessed. Which of the following solutions BEST address the risk? (Select two answers) A) Implement password complexity B) Set password reuse to one C) Set password expiration D) Set password history to two E) Set minimum password length to 12 ) Ensure password in encrypted 14- A new enterprise application undergoing implementation needs to access and authenticate the corporate LDAP server. Which of the following is the MOST secure option to enable the application to connect to LDAP? A) Anonymous binding B) SSL over port 636 C) Site-to-site VPN D) Strong authentication 15- A programmer has allocated a 100-character array variable, which will store a user-supplied input field. This application is susceptible to which of the following types of attack if the programmer fails to property the input? Select two answers) A) XML injection B) Header manipulation C) Buffer overflow D) Arbitrary E) Integer overflow code execution 16- A security administrator is segregating the web server farm from the internal network. Which of the following should be implemented? A) DMZ C) NAC D) Virtualization