IPSEC Interview questions

The following IPSEC based interview questions is a preview from the ebook – 250 Networking Interview questions and answers

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Q1 – In which IPSEC Phase is the keys used for data encryption derived.

Q2 – In IPSEC, If ESP provides both encryption and authentication, why is AH
required.

Q3 – Explain two methods by which two IPSEC routers can authenticate with each other.

Q4 – Which UDP ports should be open on a firewall to allow traffic from a L2TP/IPSEC based VPN clients to a PPTP VPN server on the inside

Q5 -Which IP protocol does AH and ESP headers use in IPSEC

Q6 – Which type of VPN would you use if data has to be encrypted at the network
layer

Q7 – What is the use of configuring ACL in IPSEC configuration on a Cisco router

Q8 – If a packet sniffer is used on the VPN tunnel can the inner IP header be viewed

Q9 – Are the pre-shared keys used between the routers used for data encryption between systems at the different sites.

Q10 – How does the IPSEC protocols, ESP and AH provide replay protection

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Buy the ebook for detailed answers - 250 Networking Interview questions and answers

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