Computer Network

Computer Network
Q: Consider sending over HTTP a Web page that consists of one video clip, and five images. Suppose that the video clip is transported as 25 frames, and each image has 4 frames.

  1. If all the video frames are sent first without interleaving, how many “frame times” are needed until all five images are sent?

b. If frames are interleaved, how many frame times are needed until all five images are sent.
Q: Consider sending 6 Kbyte from host A to host B using Stop and Wait, Go-Back-N, and Selective Repeat. Assume packet size (L) is 2 Kbyte, data rate (R) is 8Mbps, RTT = 18ms, window size (W) is 4 packets, and the Timeout = 30 ms.
Case 1: Assume all packets and ACKs are received correctly, what is the sender utilization (Usender) when using:

  1. Stop and Wait:
  2. Go-Back-N:
  3. Selective Repeat:

Case 2: Now suppose ACK2 is missed and all other packets and ACKs are received correctly. The first packet and ACK are P0 and ACK0 respectively. Neglect the transmission time of ACK packets.

  1. Assume start sending at time 0, draw the timing diagram when using Stop and Wait, Go-Back-N, and Selective Repeat.
  2. Assume start sending at time 0, when does host A finish sending the last packet when using Stop and Wait, Go-Back-N, and Selective Repeat.

Draw here the timing diagrams

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The purpose of this assignment is to help you break down the final Individual Portfolio Project into smaller tasks and to obtain instructor feedback for each step.

The purpose of this assignment is to help you break down the final Individual Portfolio Project into smaller tasks and to obtain instructor feedback for each step. Please use the….

For this final project, you are required to develop a Video Library System in Java for a video library, so that the system can be used to facilitate the borrowing and the management of the videos the library keeps.

PROJECT REQUIREMENTS 1. For this final project, you are required to develop a Video Library System in Java for a video library, so that the system can be used to….

Data Models A major retail company has hired your team as database specialists to determine the data model — relational, object-oriented, or multidimensional — best suited for its applications.

Data Models A major retail company has hired your team as database specialists to determine the data model — relational, object-oriented, or multidimensional — best suited for its applications. The….