checksum - Suppose that the information content of a packet is the bit pattern 1111000010100101 and an even parity is being used
a. What would be the checksum field in a single parity bit scheme?
b. What would be the value of the checksum field b for the case of a two-dimensional parity scheme? Your answer should be such that a minimum-length checksum is used.
Multimedia networking - - Fixed Play out delay :
1. Have a look at the attached image fig6.6
a. Explain why the packets received curve (step line) looks different from the packets-generated curve.
b. Suppose that packets are played right away as they are received, identify points where jitter is most obvious.
c. What would happen to the point indicated on the graph as a missed playout if...
DNS Operation - How do you think DNS is important for the Internet operation? What happen if DNS of your company/network, your provider or root DNS failures? What solutions to secure DNS operation do you know?
TCP connections - Can you configure your browser to open multiple simultaneous connections to a Web site? What are the advantages and disadvantages of having large number of simultaneous TCP connections?
File space - Consider a disk holding files with an average file length of 5 KB. Each file is allocated contiguously on adjacent sectors. To better utilize the disk space, it must be periodically compacted, which involves reading each file sequentially and writing it back to a new location. Assuming the standard sector size of 512, an average seek time of 50 ms, 100 sectors per track, and a rota...