1. Right Answer: A
Explanation: Sql map is a dedicated database vulnerability scanner and is the most appropriate tool for use in this scenario. Ryan might discover the same vulnerabilities using the general purpose Nessus or OpenVAS scanners, but they are not dedicated database vulnerability scanning tools. Nikto is a web application vulnerability scanner.
2. Right Answer: B
Explanation: Website Footprinting includes monitoring and investigating the target organization's official website for gaining information such as Software running, versions of these software, Operating Systems, Sub-directories, database, scripting information, and other details. This information can be gathered online by services such as, netcraft.com or by using software such as Burp Suite, Zaproxy, Website Informer, Firebug, and others.
3. Right Answer: A
Explanation: : 'WHOIS' helps to gain information regarding domain name, ownership information, IP Address, Netblock data, Domain Name Servers and other information. WHOIS database is maintained by Regional Internet Registries (RIR).
4. Right Answer: C,D
Explanation: Telnet, Nmap, Curl, Netcat are the tools that are popularly used for banner grabbing.
5. Right Answer: A
Explanation: