5.0 Network Security

5.3 Explain methods of user authentication.

• PKI
  
  
• Kerberos
  
  
• AAA (RADIUS, TACACS+)
  
  
• Network access control (802.1x, posture assessment)
  
  
• CHAP
  
  
• MS-CHAP
  
  
• EAP
  
  
• Two-factor authentication
  
  
• Multifactor authentication
  
  
• Single sign-on