The Summary Sessions Network of Chapter 1

Let's saw what we have cover in previous session regarding network... 



In this chapter, what we have learned is:

1-The common terminologies that are used in computer networking are:
-Networks
-Servers
-Clients
-Peers
-Host computers
-Terminals
-Authentication
-Encryption
-Network Directories
-Networking Standards
-Standards Organizations

2-Some of the Standard Organizations are:
-International Organization for Standardization (ISO)
-Institute of Electrical and Electronics Engineers (IEEE)
-American National Standards Institute (ANSI)
-Telecommunications Industry Association (TIA)
-Electronic Industries Alliance (EIA)
-Internet Engineering Task Force (IETF)

3-The building blocks that are used to construct network are: 
-Nodes
-The Network backbone
-Segments
-Subnets

4-The standard networking models currently in use are:
-Centralized Computing Networks
-Client/Server Networks
-Peer- to-Peer Networks
-Mixed Mode Networks 
-The primary network topologies are:
-Physical Bus Topology
-Physical Star Topology
-Physical Ring Topology
-Physical Mesh Topology
-Hybrid Topology
-Logical Bus Topology
-Logical Ring Topology
-Logical Star Topology

5-The primary categories that describe a network’s size and extent are:
-Local Area Networks (LAN)
-Wide Area Networks (WAN)
-Metropolitan, Campus, and Other Network Coverage Areas
-The Internet
-Intranets
-Extranets

-Enterprise Networks

Let's move to chapter 2....

Session 7 : The Network Categories

Network Categories 

The primary categories that describe a network’s size and extent are:
-Local Area Networks (LAN)
-Wide Area Networks (WAN)
-Metropolitan, Campus, and Other Network Coverage Areas
-The Internet
-Intranets
-Extranets
-Enterprise Networks

Local Area Networks (LAN)
A local area network is a self-contained network that spans a small area, such as a single building, floor, or room.



Wide Area Networks (WAN)
A wide area network is a network that spans multiple geographic locations.




Metropolitan, Campus, and Other Network Coverage Areas
A metropolitan area network (MAN), which covers an area equivalent to a city or other municipality.
A campus area network (CAN), which covers an area equivalent to an academic campus or business park. 
A global area network (GAN), which is any worldwide network.




The Internet
The Internet is the single largest global WAN, linking virtually every country, continent, and organization in the world.
Internet standards and practices are overseen by an international consortium that is coordinated by the Internet Society (ISOC).



Intranets
An intranet is a private network that employs Internet-style technologies.



Extranets
An extranets is a private network that employs Internet-style technologies to enable communications between two or more separate companies or organizations.



Enterprise Networks
An enterprise network is a network that encompasses all the separate network components employed by a particular organization.

Let's move to summary part of that chapter...

Session 6 : The Logical Network Topology, Continued...

Logical Network Topology

There are three types of Logical Network Topology such as :
~Logical Bus Topology
~Logical Ring Topology
~Logical Star Topology

Logical Bus Topology
A logical bus topology is a network topology in which all nodes see the network signal at the same time, regardless of the physical wiring layout of the network.



Logical Ring Topology
A logical ring topology is a network topology in which each node receives data only from its upstream neighbor and retransmits it only to its downstream neighbor, regardless of the physical layout of the network.



Logical Star Topology
A logical star topology is a network topology in which all the nodes might be wired onto the same bus cable, but a central device polls each node to see if it needs to transmit data.

Let's move to next session...

Session 5 : The mix mode network and type of network topology

Mix Mode Network



A mixed mode network is a network that incorporates elements from more than one of the three standard network models.

The type of network topology

A network topology is a network specification that determines the network’s overall layout and the network’s data flow patterns.
There are two types of network topology is
-Physical Network Topology
-Logical Network Topology

The Physical Network Topology

~Physical Bus Topology
~Physical Star Topology
~Physical Ring Topology
~Physical Mesh Topology
~Hybrid Topology

Physical Bus Topology
A physical bus topology is a physical topology in which network nodes are arranged in a linear format, with each node connected directly to the network cable with a T-connector or tap.



Physical Star Topology
A physical star topology is a network topology that uses a central connectivity device, such as a hub, with separate connections to each node. 



Physical Ring Topology
A physical ring topology is a network topology in which all network nodes are connected in a continuous circle.   



Physical Mesh Topology
A physical mesh topology is a network topology in which each node has a direct connection to every other node. 



Hybrid Topology
A hybrid topology is any topology that exhibits characteristics of more than one standard physical topology.




Let's continue to next session 6 with Logical Network Topology...

Session 4 : The standard network model

Standard Network Model

A network model is a design specification for how the nodes on a network interact and communicate.

The standard networking models currently in use :

-Centralized Computing Networks

-Client/Server Networks

-Peer-to-Peer Networks

Centralized Computing Networks

A centralized network is a network in which a central host controls all network communication and performs data processing and storage on behalf of clients.

Client/Server Networks

A client/server network is a network in which servers provides services to clients.

Peer-to-Peer Networks

A peer-to-peer network is a network in which resource sharing, processing, and communications control are completely decentralized.

A peer-to-peer network is often referred to as a workgroup.

Let's  move to next session...

Session 3 : What is the network building block?

Network Building Blocks


The building blocks that are used to construct network are:
-Nodes
-The Network backbone
-Segments
-Subnets

Nodes
A node is any network device that can connect to the network and can generate, process, or transfer network data.
Network nodes can be either:
~Endpoints:  Nodes that function as the source or the destination of data.
~Redistribution points: Nodes that are devices used to transfer data, such as a network hub or router.




The Network Backbone
The network backbone is the highest-speed transmission path that carries the majority of the network data.




Segment
A segment is any discrete physical subdivision of a network.
A segment is bounded by physical internetworking devices such as hubs, switches, and routers.
Dividing a network into segments can make network performance more efficient.




Subnets 
A subnets is a portion of a network that shares a common network address.





Let's move to next session...

Session 2 : These are all the key terms definition

Computer Network
A computer network is a group of computers that are connected together to communicate and share resources such as files, printers, and email.



Server
A server is a network computer that shares resources with and responds to requests form other network computers, including other servers.




A client is a network computer that utilizes the resources of other network computers including other clients.



A peer is a self-sufficient computer that acts as both a server and a client to other similar computers on the network.




A host computer is a powerful, centralized computer system, such as a mainframe computer, that performs data storage and processing tasks on behalf of clients and other network devices.





A terminal is a specialized network device on a host-based network that transmits the data entered by the user to host for processing and displays the results.




Authentication is a network security measure in which a computer user or some other network component proves its identity in order to gain access to network resources.
The possible authentication method is:
User Name and Password Authentication




Encryption is a network security measure in which information is encoded or scrambled prior to transmission so that it cannot be read unless the recipient knows the decoding mechanism, or key.





A network directory, or directory service, is a centralized database that includes objects such as servers, clients, computers, usernames, and passwords.




A networking standard is a set of specifications, guidelines, or characteristics applied to network components to ensure interoperability and consistency between them.
Formalization of standards is done by International Organization for Standardization.



Some of the standards bodies that issue standards are:
~International Organization for Standardization (ISO)
~Institute of Electrical and Electronics Engineers (IEEE)
~American National Standards Institute (ANSI)
~Telecommunications Industry Association (TIA)
~Electronic Industries Alliance (EIA)
~Internet Engineering Task Force (IETF)

Let's move to next session...

Session 1 : The common key term that use in network computer

In this session, you will learn to:
Define common terms used in computer networking.
Identify the primary building blocks used to construct networks.
List the standard networking models.
List the primary network topologies.
List the primary categories of networks.

Some of the common terminologies that are used in computer networking are:
-Networks computer
-Server
-Client
-Peers
-Host computers
-Terminals
-Authentication
-Encryption
-Network Directories
-Networking Standards
-Standards organizations

Let's move to next session...