[Q.51] What is a 'Zombie Process' in UNIX/Linux systems?
A Zombie process has finished execution but remains in the process table until its parent reads its exit status.
[Q.52] What is the primary function of the spooler (e.g. Print Spooler)?
SPOOL (Simultaneous Peripheral Operations On-Line) queues jobs on disk for asynchronous peripheral processing.
[Q.53] In Virtual Memory, the Page Table size depends on:
Page Table Entries = (Virtual Address Space Size) / (Page Size).
[Q.54] Which thread model maps multiple user-level threads to a single kernel thread?
In Many-to-One model, all user-space thread management is done in user space above a single kernel thread.
[Q.55] In Buddy System memory allocation, memory blocks are allocated in sizes of:
$Buddy system satisfies memory requests by splitting memory into 2^k size blocks.$