Choose any one Question from below and write two page ESSAY.

Choose any one Question from below and write two page ESSAY.

1. A co-worker with a strong Windows background is having difficulty understanding UNIX file permissions. Describe UNIX file permissions for him. UNIX file permissions to Windows file Permissions.

2. How are authentication and authorization alike and how are they different. What is the relationship, if any, between the two?

3. What is a VPN and what technologies are used to create one?


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