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

Fill in the Blanks

An old-fashioned hub would be an example of a physical star topology but a logical

topology.

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

Fill in the Blanks

A

connects two different subnets with different network addresses.

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