The different fields comprising CyberSecurity are:
1. Computer Networking:
IPTables
PCAP
OSI Model
TCP
2. System Administration:
Operating Systems
Kerberos
Backup
FileSystems
3. Digital/Network Security:
Privacy
Passwords
Cryptography
OPSEC
4. Audit & Compliance:
ISO270001
CIS Controls
Common Criteria
NIST-800
5. Forensics
Disk
Autopsy
Memory
Network
6. Command Line
Coding
Git
Powershell
Bash
7. Reverse Engineering
Fuzzing
Debugging
Assembly
IDA Pro
8. Cyber Operations
Threat Intel
APTs
Cyber Kill Chain
MITRE ATT&CK