Distributed systems, Computer Networking

Assignment Help:

There are two dominant forms of building distributed systems: client-server systems, i.e. systems in which one machine acts as a server and act as clients; and peer-to-peer systems, where each host is both a server and a client. Standard web access follows the client-server model, and services such as BitTorrent follow the peer-to-peer model. However, in real life these are not completely distinct; for instance, internally Google applies some of each of these methodologies. Actually, client-server system are sometimes implemented as a chain of clients and servers, even though from the point of view of the client there's only one server.

Another possible building pattern is that in which the client communicates directly with only a server, but in the background its requests are actually processed by a cloud of machines, which actually resembles the way Google works internally. In this case, the cloud of machines  implements a system with lots of redundancy (e.g. via a big distributed ?le system). Some of the machines in the cloud hold data, and other machines hold meta-data. When some client requests, for instance, a ?le, the meta-data servers ?rst identify which other machines hold each piece of that ?le. This type of architecture represents the current trend being followed when creating large scale systems. So, in practice, we see that current successful large scale systems are a mix between client-server architectures and peer-to-peer systems, implemented with lots of storage and computational redundancy.


Related Discussions:- Distributed systems

Explain how tcp handles connection-setup management, Problem: (a) Expla...

Problem: (a) Explain how TCP handles connection-setup management. (b) Each host on the Internet is currently assigned an IP address 32 bits long (IPv4). IPv4 addresses are u

Characteris potential problems of a peer-to-peer environment, Question: ...

Question: a) List three characteristics and two potential problems of a peer-to-peer environment. b) List three characteristics and two potential problems of a client/

Enumerate about the traffic policing, Enumerate about the Traffic policing ...

Enumerate about the Traffic policing Traffic policing happens when a flow of data is regulated so that cells (or frames or packets) that exceed a performance level are discarde

Link state packet - network layer and routing , Link State Packet When ...

Link State Packet When  a router floods  the network  with information about its  neighbourhood. It is said to  be advertising. The basis of this  advertising is  a short  pack

How lans connected to internet, How LANs connected to Internet. Doublin...

How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio

What are the communication tools, What are the Communication tools ? Voic...

What are the Communication tools ? Voice mail ? Email ? Fax ? Video conferencing applications

Media, explain history of internet?

explain history of internet?

Explain dynamic key management mechanism, Question: a) Consider the f...

Question: a) Consider the following MIP scenario. Quite a few enterprise networks use private addresses and NAPT for the communication to the Internet. i. Discu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd