Permanent address and a care-of address

Reference no: EM13273421

1) What is the difference between a permanent address and a care-of address? Who assigns a care-of address?

2) What are the differences between message confidentiality and message integrity? Can you have confidentiality without integrity? Can you have integrity without confidentiality? Justify your answer.

3) From a service perspective, what is an important difference between a symmetric-key system and a public-key system?

4) Stateful packet filters maintain two data structures. Name them and briefly describe what they do.

Reference no: EM13273421

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