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

Error detection-general, Q. Error Detection-General? Sender transmi...

Q. Error Detection-General? Sender transmits every data unit twice Receiver performs bit-by-bit comparison between those two versions of data. Any mismatch would

Distinguish between network devices computers and servers, The School of Co...

The School of Computing is planning to deploy a new network structure to accommodate the following scenario. Please make suggestions on how this LAN can be designed based on the fl

Show the application layer responsibilities, Q. Show the Application Layer ...

Q. Show the Application Layer Responsibilities? - Make possible user access to the network - User interfaces as well as support for services such as E-Mail File

What are the possible ways of data exchange in ccna, Normal 0 f...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Verify network connectivity- ccna, Verify Network Connectivity Step 1: ...

Verify Network Connectivity Step 1: Use the ping command to determine network connectivity. You can determine network connectivity using the ping command.  Note: If pings

Internet transport service proposal, will you have this done to day? And ho...

will you have this done to day? And how long will this take?

What is difference among rip and ripv2, RIP It is Broadcast There i...

RIP It is Broadcast There is no authentication It Support FLSM   RIPV2 It is Multicast There is Authentication It Support VLSM

Describe encapsulating, Can you describe encapsulating, carrier and passeng...

Can you describe encapsulating, carrier and passenger protocol?

What layer can optionally support reliability, Ans) The Transport Layer : ...

Ans) The Transport Layer : Segments upper-layer applications. Establishes an end-to-end connection. Sends segments from one end host to another. Optionally, make sures

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