3- Consider the size of job file is 4GB Compute the following:

a. Number of blocks if the size of each block is 128MB.

b. The size of each file if the job file broken into 20000 files.

c. The number of map tasks if each map contains 1000 file.

d. The number of tasks if each task contains 5 maps.

e. The total time of job if the task executes in 3 seconds.