Intro to Defensive Security is the second machine in Introduction to Cyber Security Path, it teaches you about the defensive security and what are the fields for blue team that they can work in.
You can access the machine directly from here
and here are the answers
Which team focuses on defensive security?
What would you call a team of cyber security professionals that monitors a network and its systems for malicious events?
Security Operations Center
What does DFIR stand for?
Digital Forensics and Incident Response
Which kind of malware requires the user to pay money to regain access to their files?
What is the flag that you obtained by following along?