Unix® System Management Primer Plus

Chapter 13

1:	What is the difference between authentication and authorization?
A1:	Authentication provides proof of your identity. Authorization grants or denies you access to resources based on your identity.
2:	What is the concept of least privilege?
A2:	The concept of least privilege dictates that you should grant users access to only those resources that they absolutely must access in order to do their work.
3:	What is a buffer overflow?
A3:	A buffer overflow is a condition in which data is written beyond the end of a fixed amount of memory, often onto the stack. Malicious users can use programs with buffer overflows to run code that they have inserted in the program.
4:	What are the advantages and disadvantages of public key encryption?
A4:	The ...