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VPN Mock Interview

To help you prepare for your VPN interview, here are 30 interview questions and answer examples.

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Question 1 of 30

When vetting VPN Product Vendors, what are some of the tougher questions you ask them to qualify their solutions and determine if they are appropriate for your requirements?

One of the roles of a VPN system specialist is to work with vendors to select the appropriate technology for their requirements. They then need to continue the relationship with the vendor for ongoing support, upgrades, and other issues. Striking a balance between these is critical. When answering this question, you should demonstrate your ability to appropriately vet the vendor solution without antagonizing them or compromising the relationship you need after selecting their products.

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30 VPN Interview Questions & Answers

  • General

    1. When vetting VPN Product Vendors, what are some of the tougher questions you ask them to qualify their solutions and determine if they are appropriate for your requirements?

  • Operational

    2. VPNs have a reputation for solving most, if not all, network security issues. Are there any unreasonable expectations for a VPN or issues it doesn't address?

  • Operational

    3. In what scenarios are site-to-site and remote access VPN employed?

  • Operational

    4. In your opinion, is a VPN a long-term solution or a short-term stopgap to an immediate security threat?

  • Operational

    5. Are there applications or environments in which VPNs may be detrimental and cause more harm than they do good?

  • Operational

    6. When deciding whether to use VPN, what items do you consider? What do you then consider when selecting, deploying, and maintaining VPN?

  • Operational

    7. What are the reasonable expectations as to what a VPN can do to protect an organization's network and proprietary information?

  • Technical

    8. What Is meant by the term "╦ťTransform Set'?

  • Technical

    9. What are the different modes for Secure Sockets Layer Virtual Private Network or SSL VPN?

  • Technical

    10. What Is a Cisco Easy VPN, and what are its benefits?

  • Technical

    11. What commands do you use to check the status of a VPN tunnel's phases 1 & 2?

  • Technical

    12. Can you explain the difference between static crypto maps and dynamic crypto maps?

  • Technical

    13. Can you explain DMVPN?

  • Technical

    14. What Is Ike, and what communication port does this protocol use?

  • Technical

    15. What is a Diffie-Hellman key, and how does it work?

  • Technical

    16. Can you explain Next Hop Resolution Protocol (NHRP) and how it is used in VPN?

  • Technical

    17. Can you walk me through the steps in an SSL handshake?

  • Technical

    18. Are there more than one SSL VPN mode, and if so, can you describe them?

  • Technical

    19. Can you define SSL VPN and discuss how it differs from IPsec VPN?

  • Technical

    20. What Are Crypto Maps, and how are they used?

  • Technical

    21. What Are Security Associations (SA), and how are they used?

  • Technical

    22. Can you describe how ISAKMP and IKE protocols work?

  • Technical

    23. Can you explain how the two IPsec protocol headers are used in a VPN?

  • Technical

    24. Can you explain the differences between transport and tunnel mode data transmission?

  • Technical

    25. What are symmetric and asymmetric encryption, and how is each used?

  • Technical

    26. Can you discuss the differences between authentication, confidentiality, and integrity in the context of VPNs and network security?

  • Technical

    27. What are some of an organization's security vulnerabilities that a VPN will address?

  • Technical

    28. What are some of the performance issues raised by the use of a VPN?

  • Technical

    29. What are some of the crypto-related best practices recommended in the operation of a VPN?

  • Technical

    30. What are some of the firewall issues relevant to the selection and deployment of a VPN?