Match the following shortcut keys with the correct action

Devise a scenario in which multicasts sent by different clients are delivered in different orders at two group members. Assume that some form of message retransmissions are in use, but that messages that are not dropped arrive in sender ordering. Suggest how recipients might remedy this situation

What will be an ideal response?

The ‘Transfer’ transactions T and U are defined as:

T: a.withdraw(4); b.deposit(4);

U: c.withdraw(3); b.deposit(3);

Suppose that they are structured as pairs of nested transactions:


Explain why the use of these nested transactions generally permits a larger number of serially equivalent interleavings than non-nested ones.