BCA Semester 6 – Distributed System – Unit 3: Processes (6Hrs)

Why Clock Synchronization is Needed - In a Distributed System, each node has its own clock. - Reasons for synchronization: 1. Event Ordering: To determine the correct sequence of events across n

Physical Clock - Definition: A hardware-based clock that measures real (wall) time using oscillators. - Key Points: - Provides absolute time (hours, minutes, seconds). - Can drift or skew du

Berkeley Algorithm Definition The Berkeley Algorithm is a clock synchronization method used in distributed systems where there is no external accurate time source. - A master process polls other no

a) Sequential Consistency - Definition: A consistency model where the result of any execution is the same as if all operations were executed in some sequential order, and the operations of each proces

Definition Mutual Exclusion is a property in concurrent and distributed systems that ensures only one process accesses a critical section (shared resource) at a time. - Prevents data inconsistency a

Definition Code Migration is the process of moving a program or code from one machine to another in a distributed system, while preserving its execution state. - Used to optimize resource usage, loa

Definition Clock Synchronization is the process of coordinating the clocks of different nodes in a distributed system to ensure they show the same or consistent time. - Important because nodes have