Juliet, a security researcher in an organization, was tasked with checking for the authenticity of images to be used in the organization's magazines. She used these images as a search query and tracked the original source and details of the images, which included photographs, profile pictures, and memes. Which of the following footprinting techniques did Rachel use to finish her task?

What does a firewall check to prevent particular ports and applications from getting packets into an organization?

You are tasked to configure the DHCP server to lease the last 100 usable IP addresses in subnet to. 1.4.0/23.
Which of the following IP addresses could be teased as a result of the new configuration?

What is the role of test automation in security testing?

These hackers have limited or no training and know how to use only basic techniques or tools.
What kind of hackers are we talking about?