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?
Total Average Response Time, Average Access Delay calculation Calculation
There is an institutional network connected to the internet by a 1 Mbps link. The institutional network is a very high-speed LAN (let 10 Mbps or more). Suppose that the average object size is 800,000 bits and that the average request rate from the institution’s browsers to the original server is 1 request per second. Also suppos ...continues
Top-level media types and sub-types
Clearly study RFC 2045 and RFC 2046 and name the various top-level media types and sub-types defined in it.
(a) Discuss the benefits of the DHCP server and its relation to the Active Directory Domain. (b) Discuss the benefits of WINS server. (c) Discuss installation issues and installation parameters for each server.
In a windows 2003 server network discuss several devices such as: repeaters, routers, hubs, and gateways. Where do these devices fit in the OSI reference model?
Multiple TCP connections and its effect on system performance
I cannot figure out how opening multiple simultaneous connections will affect the overall performance of the CPU or are you saying the processor will be stressed with such act that it will eventually collapse? I know the processor deals with each request either by LIFO or FIFO and never gets confused about what to do and I am su ...continues
Having a DNS server available to the public can be a tool in the hand for attackers. If anyone is able to use your DNS, they can use it to send a huge amount of traffic to their victim. As a result, the victim would not be able to handle all the traffic and it would be unavailable to others who need to access it. So, we should b ...continues
UDP uses 1’s complement for its checksums. Suppose you have the following three 16-bit words0100010001000100, 0101010101010101, 0011001100110011. What is the 1’s complement of the sum of these 16-bit words? Why is it that UDP takes 1’s complement of the sum; that is why not just use the sum? With 1’s complement scheme, how does ...continues
Consider streaming stored audio. Does it make sense to run the application over UDP or TCP? Which transport protocol does RealNetworks use? Why? Which transport protocol do the Microsoft streaming products use? Why?
Buffering Streaming Media Data
What is done by the industry to reduce buffer delay in streaming media. Please discuss 3 ways how minimizing buffer delay can be achieved.
