Processes Flashcards
1
Q
What are two defining attributes of zombie processes
A
Child process has been terminated. Parent has not yet issued a wait() system call.
2
Q
Which part of the operating system decides when the OS will perform a context switch?
A
Kernel
3
Q
What is a process control block
A
A data structure used by operating systems to store all information about a process.
4
Q
When a process is created by fork(), what makes the child process a child of it’s parent process?
A
Duplicate copies of the text, data and stack segment memory of its parent
5
Q
Who does the Real User ID belong to?
A
The user who originally logged in
6
Q
What is the purpose of the Effective User ID
A
To temporarily change the identity for a certain process or part of a process. (e.g. become root)
