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What is the correct explanation of the Data tier in the three-tier architecture?

We have discussed four different Client-centric consistency models. Which of the following options correctly describes the definition of the Write follow Reads?

We have learned clock synchronization algorithms that allow all machines to agree on the same time. Which options describe the time for the internal clock synchronization algorithm? Select all that apply.

Which descriptions of the role of middleware in a distributed system are correct? Select all that apply.

We have discussed data-centric consistency and client-centric consistency in the lecture. Which descriptions are correct regarding the difference between data-centric consistency and client-centric consistency? Select all that apply.

Which statement is true about middleware?

We have discussed scenarios where write-write conflict when discussing Eventual Consistency. Which of the following options explains the scenario that may be vulnerable to write-write conflicts?

Which descriptions of three dimensions of scalability are correct? Select all that apply.

Read your Write guarantees that a write operation is always completed before a successive read operation by the same process, no matter where that read operation takes place. Which of the following scenarios represents a data store supporting Read your Writes?

We have discussed that replication improves reliability and the performance. Which of the following options explain how the replication can improve reliability or performance? Select all that apply.