The ____ PAM module retrieves and makes available Unix UID/GID/groups information for the current user.

Place the following functions in the correct order according to their privilege level, starting with Level 0

Private OS functions OS services Applications Device drivers

i) Can a server invoked by lightweight procedure calls control the degree of concurrency within it? ii) Explain why and how a client is prevented from calling arbitrary code within a server under lightweight RPC. iii) Does LRPC expose clients and servers to greater risks of mutual interference than conventional RPC (given the sharing of memory)?

What will be an ideal response?