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SIMOS 1.0: Fundamentals of VPN Technologies and Cryptography

Target Audience
Expected Duration
Lesson Objectives
Course Number
Expertise Level

VPNs form the basis of secure communication across a shared or public infrastructure. In this course, you'll about the basics of VPNs and the cryptographic systems that underpin them. This course is one of a series in the SkillSoft learning path that prepares the learner for Cisco certification exam 300-209 SIMOS. This exam counts toward CCNP Security certification.

Target Audience
Network security engineers and learners preparing for Cisco CCNP Security certification


Expected Duration (hours)

Lesson Objectives

SIMOS 1.0: Fundamentals of VPN Technologies and Cryptography

  • start the course
  • define virtual private networks in the enterprise network
  • describe script-based and man-in-the-middle attacks on WAN and remote access infrastructure
  • describe masquerading attacks on WAN and remote access infrastructure
  • describe how VPNs fit into the Cisco modular network architecture
  • describe clientless and Client-based AnyConnect VPNs
  • list the components of a VPN
  • describe cryptography in the context of secure communications
  • describe symmetric and asymmetric key cryptographic systems
  • describe how encryption protocols provide confidentiality in communication systems
  • describe how key hashed-message authentication code is used to ensure message integrity
  • describe challenge response authentication with hash message authentication code
  • describe how PKI and revocation provide nonrepudiation in cryptographic systems
  • describe keys and key exchange algorithms in cryptographic systems
  • describe how digital certificates are used in public key infrastructure to secure communications
  • describe revocation mechanisms in public key infrastructure
  • list next-generation encryption mechanisms
  • match security levels in security policies on communication end points
  • select the correct technologies to secure a Cisco virtual private network
  • Course Number:

    Expertise Level