$1.(3$ points$)$ What is the advantage of using the record append function instead of the

write function in GFS$?$ Are GFS replicas guaranteed to have the same content if only

record append functions are used to write data? Justify your answers.

$2.(3$ points$)$ Give an example of a situation that causes a Bigtable tablet server to shut

down. Why must the server shut down in this situation?

$3.(4$ points$)$ Describe two problems associated with data partitioning in distributed

systems. Also, describe the solution provided by Dynamo for both problems.