Chapter 6. Network Security

CompTIA Network+ exam objectives covered in this chapter:

  • 6.1 Explain the function of hardware and software security devices

    • Network-based firewall

    • Host-based firewall

    • IDS

    • IPS

    • VPN concentrator

  • 6.2 Explain common features of a firewall

    • Application layer vs. network layer

    • Stateful vs. stateless

    • Scanning services

    • Content filtering

    • Signature identification

    • Zones

  • 6.3 Explain the methods of network access security

    • Filtering

      • Access control lists

      • MAC filtering

      • IP filtering

    • Tunneling and encryption

      • SSL VPN

      • VPN

      • L2TP

      • PPTP

      • IPSEC

    • Remote access

      • RAS

      • RDP

      • PPPoE

      • PPP

      • VNC

      • ICA

  • 6.4 Explain methods of user authentication

    • PKI

    • Kerberos

    • AAA

      • RADIUS

      • TACACS+

    • Network access control

      • 802.1x

    • CHAP

    • MS-CHAP

    • EAP

  • 6.5 Explain issues that affect device security

    • Physical security

    • Restricting local and ...

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