Name: Class

Worksheet 1

Name:	Class:
Topics: Show understanding of the purpose and benefits of networking devices. Show understanding of the characteristics of a LAN (local area network) and a WAN (wide area network). Explain the client-server and peer-to-peer models of networked computers.

1. Ahmadullah and his friends set up a peer-to-peer network between their computers to share data.

(a) Describe the key features of a peer-to-peer network.

It provides services to all other network users. Available services

will be listed on the named "lookup" computer - if the node asks
to service, "lookup" computer meeds to find out which other network nodes can be provided for the required services. It also allows other users on the network to easily access data from another node And there will be communication around the peers. A peer can be both a supplier and a consume.
responsibility).(b) Describe two drawbacks to Ahmadullah and his friends of using a peer-to-peer network.
1-Peer to Peer networking lacks the feature of centralization.This makes it more challenging for the users to locate and find files. And so this will be time wasting.
2-Peer to peer networks are more prone to malware and virus attacks since each connected computers are independent to each other. If one of the computers tends to get virus infected, it could easily spread to the remaining computers even if they are protected through an antivirus or a firewall software.

Explain the differences between the thin and thick clients and give an example for each.

Thin clients needs strong internet connection for computing while thick clients does not need stable connection.
Thick clients are more controled so that it can store its data or files.
Every single clients need to update or upgrade their apps or softwares by themselves
Thin clients are more cheaper.However it relies on the server so if there will be crash on the server whole computers will crash.
Also thin clients offer more secure network against hacker or malware.Whether the cheaper hardware,boot-up cost are really high.
Data in thin clients software will be saved in the remote server or computer.
Data in thick clients software will be stored in HDD or SDD.
Example for thick clients is POS terminal
Example for thin clients is Independent games
List the main benefits and drawbacks of networking computers and devices rather than using several standalone computers.
Benefits:It is easy to share files and data to other computers or devices
They are cheaper.
Drawbacks:If the virus or malware infects one device other devices also infected easily
They are not very dveloped rather than standalone computers.They are not as independet as standalone computers
What are the main network communication infrastructures, including Hardware, Software, and Services?
Hardware: they are routers, switches, hubs, repeaters, gateways, bridges, and modems.
Software: they are monitoring and management tools and operating systems also the firewall operations
Services: they are DSL,satellite communication channels,wireless protocols,IP addressing.
What are the benefits of stand-alone computer?
They are more secured.They have no connection between other computers meaning none of your private data can be seen.They have more developed components like processor.
Simplicity is another advantage, because it takes a lot less expertise to manage one computer than it does to setup or troubleshoot several.