Sam is working as a loan agent for a financial institution. He frequently receives a number of emails from clients providing their personal details for loan approval. As these emails contain sensitive data. Sam had set up a feature that directly downloads the emails on his device without storing a copy on the mail server.
Which of the following protocols provides the above-discussed email features?

• A. POP3
• B. ICMP
• C. SNMP
• D. SHA-1

Michael, a forensic expert, was assigned to investigate an incident that involved unauthorized intrusion attempts. In this process, Michael identified all the open ports on a system and disabled them because these open ports can allow attackers to install malicious services and compromise the security of the system or network.
Which of the following commands assisted Michael in identifying open ports in the above scenario?

• A. netstat -i
• B. netstat rn
• C. nmap -sT localhost
• D. ilconfig promise

Clark is an unskilled hacker attempting to perform an attack on a target organization to gain popularity. He downloaded and used freely available hacking tools and software developed by other professional hackers for this purpose.
Identify the type of threat actor described in the above scenario.

• A. Script kiddie
• B. Cyber terrorist
• C. industrial spy
• D. Hacktivist

Finch, a security professional, was instructed to strengthen the security at the entrance. At the doorway, he implemented a security mechanism that allows employees to register their retina scan and a unique six-digit code, using which they can enter the office at any time.
Which of the following combinations of authentication mechanisms is implemented in the above scenario?

• A. Smart card and password authentication
• B. Biometric and password authentication
• C. Two-factor and smart card authentication
• D. Password and two-factor authentication