Calculate the total time required to transfer a 1000-KB (KB: Kilo-Byte) file in the following cases, assuming a Round Trip Time (RTT) of 50ms, a packet size of 1KB, and an initial 2*RTT of handshaking to establish the connection before data is sent (2 points):a) the bandwidth is 1.5Mbps (million bits per second), and data packets can be sent continuously. b) the bandwidth is still 1.5Mbps, but we use a protocol with ACK to improve reliability. After we finish sending each data packet we must wait one RTT to receive ACK before sending the next.

Which of the following examples has four beats in each measure?

In the context of an internet connection, llc stands for leased line connection liability limited company local loop complex local loop carrier

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.