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In distributed systems, various ordering principles ensure the appropriate sequence of events. This text explores three key concepts: total ordering, FIFO (First In First Out) ordering, and causal ordering. Total ordering guarantees a global sequence of events, FIFO preserves the order of messages from a single sender, and causal ordering respects the causal relationships between events. We clarify the implications of these orderings by examining statements regarding their relationships, allowing a deeper understanding of how they function in system design and interaction.
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True or False • Total ordering implies FIFO ordering • Using a sequencer ensures causal ordering • Causal ordering implies FIFO ordering • A: True • B: False
Which ordering does this follow? • A: FIFO • B: Causal • C: Total • D: Total-FIFO • E: Total-Causal
