Networking Overview

Networking Overview

Open Ended

What are the advantages of a peer-to-peer network?

Open Ended

What are the advantages of a client-server network?

Peer-to-Peer Networks

• hosts don't have a specific role

• decentralized

• network hosts provide and consume storage

• Advantages: easy to implement, inexpensive

• Disadvantages: not scalable, difficult to support

Client-Server Networks

• hosts have specific roles

• server: provides resources

• client: consumes resources

• Advantages: scalable, easy to support (centralized), easy to back up

• Disadvantages: expensive, requires planning,

Multiple Choice

What converts digital data to a signal that can be transmitted?

• node

• networking media

• router

• network interface

Topologies Review

• Networks have both a physical and logical topology

• Physical topology: how devices are physically connected

• Logical topology: how devices communicate

• One network can have a different physical and logical topology

Multiple Choice

Which physical topology uses a central connecting device?

• bus

• ring

• star

• mesh

Logical Topologies

• Bus: messages are sent to all devices at once

• Ring: messages are sent from device to device in a certain order

• Star: messages are sent only to the destination device

• Mesh: messages are sent to the destination device, if that pathway is not working the switch or router sends it through an alternate route

Open Ended

What is the transmission medium for wireless networks?

Network Media

• copper wiring: sends an electrical signal

• fiber optic: sends a light signal

• wireless: sends analog radio signals

Multiple Choice

What kind of server handles user authentication information?

• file and print

• remote access

• directory

• application

Multiple Choice

What kind of server automatically assigns IP addresses to devices?

• web server

• DHCP

• DNS

• NAS

Server Types

• file and print: is what it sounds like

• application: provide a network application like a database

• directory: user information

• remote access: working from home

• web: website data

• DNS: matches IP address with domain names (www.rtc.edu)

• DHCP: automatically assigns IP addresses