1.3 Computer networks, connections and protocols Flashcards
What are the advantages of using networks?
Communication, monitoring user activity, controlling and updating workstations, roaming, sharing information, resource sharing and software streaming
What are the disadvantages of using networks?
Dependence, security issues, setting up hardware,
and malware
List the different types of network.
LAN, WAN, PAN, MAN, SAN, WPAN and VPN
True or False: Computers in a LAN must be connected to the Internet.
False: Computers in a LAN need not be connected to the Internet.
State an example for a LAN.
Connection of computers in an office or school.
State an example for a WAN.
The Internet
What is the use of a SAN?
Provides servers that enable users to store files on a large scale.
State an example of a WPAN.
A Bluetooth connection with devices in a car.
How is a VPN made secure?
By using encryption algorithms.
What are the different network models?
Client-to-server network model and peer-to-peer network model
List the different types of server.
Web servers, application servers, network attached storage (NAS), print servers and mail servers.
What is the function of a web server?
Handles the user’s requests and manages the websites. Allows users to view HTML pages, CSS stylesheets and other scripts.
What is a peer-to-peer network?
In a P2P network, each and every computer in a network is responsible for providing data equally.
Compare the performance of client-server and P2P network models.
Client-Server: Performance can be improved if the server is upgraded.
P2P: If the individual computers become slow, the whole network slows down.
What are the three types of copper cables?
Coaxial, unshielded twisted pair and shielded twisted pair.