Ch1 Introduction to Networking: Sec1 Network Models

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Part2

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Network

A group of computers and other devices that are connected by some type of transmission media

Topology

Describes how the parts of a whole work together

Physical Topology

Mostly refers to a network's hardware and how computers, other devices, and cables fit together to form a physical network

Logical Topology

Has to do with software, how network access is controlled, and how specific resources are shared on a network

OS

Operating System

Each OS is configured to use one of two models to connect to network resources:

The peer-to-peer model or the client-server model

The peer-to-peer model can be achieved using ...

Any assortment of desktop, mobile, or tablet OSes

NOS

Network Operating System

The client-server model can be achieved using...

One or more NOSes

P2P

Peer-to-peer

A computer on a network is called a...

Node or host

On a P2P network, hosts form...

A logical group of computers and users that share resources

Each node on a P2P network controls it's own...

Administration, resources, and security

If all hosts on a P2P network have Windows OS, they can share resources by...

A. Using Windows folder and file sharing
B. Using a workgroup
C. Using a homegroup

If a network has less than 15 hosts it's best to use a...

P2P network

The advantages to P2P are...

A. They are simple to configure
B. They are often less expensive to setup and maintain than other types of networks

The disadvantages to P2P are...

A. They are not scalable
B. They are not necessarilly secure
C. They are not practical for connecting more than a few computers

Server

Any computer or program that provides a service

The client-server network model is sometimes called the...

Client-server architecture or client-server topology

In a client-server network resources are managed by...

The NOS via a centralized directory database, which can be managed by servers.

Windows Domain

When a Windows Server controls access to a group of computers

AD

Active Directory

Active Directory

The centralized directory database that contains user account information and security for the entire group of computers

AD DS

Active Directory Domain Services

Active Directory Domain Services

The process where a user can sign onto a network from any computer on the network and get access to the resources that AD allows

A computer making a request from another is called...

The client

Clients on a client--server network can...

Run applications on the desktop and store their own data on local storage devices.

Clients on a client--server network don't...

Share their resources directly with each other

The NOS is responsible for...

A. Managing data and other resources for a number of clients
B. Ensuring that only authorized users access the network
C. Controlling which types of files a user can open and read
D. Restricting when and from where users can access the network
E. Dictatin

Advantages of client-server networks are

A. User accounts and passwords to the network are assigned in one place
B. Access to multiple shared resources can be centrally granted to a single user or group of users
C. Problems on the network can be monitored, diagnosed, and often fixed from one loc