Consider a 1 Mbytes file stored in a web server. Client A sends a request to the server to retrieve the file from a remote location. Given that the segment size is 20 Kbytes, the initial slow-start threshold is 8 and the clients buffer has a very large space to receive. Assume that TCP Reno is used, there is no loss during transmission and the headers of protocols are ignored.

Determine how long does client A take to receive the whole file from the server after sending a request in the following situations.

(a) The client is directly connected to the server with a transmission rate of 10 Mbps and the round trip time (RTT) between the server and client is 20ms.

(b) Similar to (a), except that the clients buffer is limited to 100K bytes and RTT is 50ms.