How would you deal with the internal attack?

By using host-based permit and block ip packets.-choice c is the correct answer.choice c is correct because ipsec can be used for internal security by combining host-based permit and block packet filters with the ability to enforce trusted access for network connections. through host-based ipsec packet filtering, you can permit or block specific types of unicast ip traffic based on source and destination address combinations, specific protocols, and specific ports. through the enforcement of trusted access, you can ensure that only trusted computers that have specific ip addresses or those that are within specific ip address ranges can access an internal corporate network server. in addition, you can use ipsec to audit which computers are connecting to the server and when.choice a is incorrect because kerberos is not a considered option in this scenario.choice b is incorrect because the question statement does not specify a project-based security as a requirement at all.