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9.1 Give examples of applications of IPsec.
9.2 What services are provided by IPsec?
9.3 What parameters identify an SA and what parameters characterize the nature of a particular SA?
9.4 What is the difference between transport mode and tunnel mode?
9.5 What is a replay attack?
9.6 Why does ESP include a padding field?
9.7 What are the basic approaches to bundling SAs?
9.8 What are the roles of the Oakley key determination protocol and ISAKMP in IPsec?

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9.1
IPsec is a form of encryption security which is used to secure communications. It is used for authentication of information and analyzing whether the data is original, confidential, and its integrity. Some of the examples of applications of IPsec include; ensuring that the connection of the branch office is protected over the internet, ensuring that the remote access over the internet is fully protected.

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