Question 2
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Virtual Synchrony is used for managing group membership. The view of a group changes when a process joins/leaves the group or when a process crashes. The implementation of the virtual synchrony discussed in our lecture assumes that no failure occurs during a view change. Augment the scheme so that it can cope with failures during a view change.
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i. Discuss the principles behind your scheme and describe the scheme in detail
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ii. Justify why your scheme satisfy virtual synchrony. In your justifications, you must explain why your modified scheme satisfies the properties guaranteed by virtual synchrony.
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