For a successful career in Information Technology, a strong foundation of basic networking concepts is a must. Networking technology allows for the exchange of data between large and small information systems used primarily by various businesses. Learn more about: » To be a Successful ICT Professional » Running the IT projects successfully » Benefit of networking » Network Components » Data Transfer » IP Address » Windows Commands » Types of LANS » Network Topology » Centralized Computing Vs. Distributive Computing » Client Server Model » Peer to Peer Networks

1. A Deep Dive in the World of IT Networking (Part 1)
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5. Agenda
• To be a Successful ICT Professional.
• Running the IT projects successfully.
• Benefit of networking.
• Network Components.
• Data Transfer.
• IP Address.
• Windows Commands.
• Types of LANS.
• Network Topologies.
• Centralized Computing Vs. Distributive Computing.
• Client Server Model.
• Peer to Peer Networks
• Q&A

6. To be successful ICT Professional
The main qualities that any successful ICTP must be
keen to merit:
• Certificates.
• Experiences.
• Language Skills.
• Communications Skills.
• Eagerly learn more.

7. Running the ICT projects successfully
To Run any ICT Project successfully regardless of it’s
type whether it’s infrastructure project of software
development or programming project. It’s
• Documentation.
• Backup .
• Patch.

8. Benefit Of Networking
• Networks are used to exchange data.
• Sharing.
• Communication.
• Organization.
• Money.

9. What is the Network
•A data network is a group of devices connected by network medium.
•The network medium carries signals between computers.
•Signals reduce complex information to the simplest possible form.
•Devices communicate by using a language called a protocol.

10. Network Components
Network adapters

11. Cables and connectors

12. Cables and connectors

13. Hub
•A hub is the most basic of central connecting
devices.
•It connects each of the networked computers,
known as hosts, to one another by way of
copper-based cables.
•Any host that sends data must first send that
data to the hub, where it is amplified and
broadcast to the rest of the network.

14. Switch
•Switch is like a Hub but built in with
advanced features. It uses physical device
addresses in each incoming messages so
that it can deliver the message to the
right destination or port.
•switch don’t broadcast the received
message to entire network, rather before
sending it checks to which system or port
should the message be sent. In other
words switch connects the source and
destination directly which increases the
speed of the network. Both switch and
hub have common features: Multiple RJ-
45 ports, power supply and connection
lights.

15. Router
•The router acts as a central connecting
device, but it also has a special
communications link to the Internet,
thereby allowing the hosts to send data
to and receive data from computers on
the Internet.
•This communications link between the
router and the Internet is where the LAN
ends.

16. Data Transfer
Serial Data Transfer
•Generally, when data is transferred on a Network, it is sent in a serial
fashion over twisted-pair cabling.
•Serial data transfer means the transfer of one bit at a time … in other
words, transfer in a single-bit stream.

17. Types of Data Transfer
•Broadcast has data sent to every other host on the network.
•Unicast has data sent to one host only.
Data Transfer Rate
•Data transfer rate, otherwise known as bit rate defines the maximum bits
per second (bps) that can be transmitted over a network.
•As mentioned, this value is rated in bits, and it is signified with a
lowercase b (for example, 10 Mbps).
•The lowercase b helps differentiate this amount from data that is stored
on a hard drive, which uses an upper case B that stands for bytes (for
example 10 MB).

18. Ethernet
•Ethernet is a set of rules that govern the transmission of data between
network adapters and various central connecting devices.
•All network adapters and central connecting devices must be compatible
with Ethernet in order to communicate with each other.
•Common types of Ethernet include:
802.3u or Fast Ethernet that runs at 100 Mbps.
802.3ab or Gigabit Ethernet runs at 1000 Mbps.

19. IP Address
•every computer and many other devices have such an address.
•An IP address allows each computer to send and receive information
back and forth in an orderly and efficient manner.
•An IP address identifies your computer number and the network it
lives on.
•IP address is made of 32-bit address. The address is divided into four
sections of eight bits each called octets (math).
•IP divided in to 5 classes or categories class (A,B,C,D,E) each of them
has a unique range of addresses
•In order to know the class of the address we are forced to look to the
first octet of the address.
Class A (1-126),(255.0.0.0),(N.H.H.H)
Class B (128-191),(255,255,0,0),(N.N.H.H)
Class C (192-223),(255,255,255,0),(N.N.N.H)

20. •127.0.0.0 : This network address is reserved for the loopback
address. (Note: This address is not included in the range of Class A or
Class B addresses.) The address 127.0.0.1 refers to the local host.
•The following address ranges have been reserved for private use.
10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
•Use addresses in these ranges for your private networks. Routers
connected to the Internet typically filter messages within these ranges
and prevent them from being propagated to the Internet.
Special IP Address

21. Subnet Mask
•The subnet mask is a group of four numbers that define what IP network the
computer is a member of.
•All of the 255s in a subnet mask collectively refer to the network portion,
whereas the 0s refer to the host portion.

22. Windows Commands
IPConfig command shows IP configuration information.
IPConfig

23. Ping Command

24. Types Of Local Area Network
Wired LAN
Computers and
other devices are
wired using
copper-based
twisted-pair
cables

25. Wireless Local Area Network (WLAN)
•A wireless local
area network
(WLAN) has many
advantages, the
most obvious of
which is the ability
to roam.
•The wireless access
point (WAP) acts as
the central
connecting device
for the network.

26. Virtual Local Area Network (VLAN)
A Virtual LAN is a
group of hosts with
a common set of
requirements that
communicate as if
they were
connected together
in a normal fashion
on one switch,
regardless of their
physical location.

27. Network Topology
A network topology : defines the physical connections of hosts in a computer network.
There are several types of physical topologies including:
Bus, Ring, Star, Mesh, … etc.
Star Topology
•Most Common topology
•Each computer is
individually wired to a
central connecting device
(hub, switch or SOHO
router) with twisted-pair
cabling.

28. Mesh Topology
Every computer connects to
every other computer; no
central connecting device is
needed.

29. Ring Topology
•In a LAN environment, each computer is
connected to the network using a closed
loop.
•Used by Token Ring and FDDI.
•A Token Ring network sends data logically in
a ring fashion, meaning that a token goes to
each computer, one at a time, and continues
on in cycles.
•However, Token Ring computers are
physically connected in a star fashion.
•Namely, all computers in a Token Ring
network are connected to a central
connecting device known as a Multi Access
Unit (MAU) or MultiStation Access Unit
(MSAU).

30. Centralized Computing
•The older type of
computing was known as
centralized computing.
•This was the case during
the days of the mainframe,
in which there was one
super computer and the rest
of the devices that
connected to the super
computer were known as
terminals (or dumb
terminals).
•Each terminal consisted
solely of a keyboard and
display with no processing
power.

31. Distributive Computing
Today’s computing is
known as
distributive
computing and is
used for both client-
server and peer-to-
peer networks.
This means that
every device or
workstation has its
own processing
power.

32. Client/Server ModelThe client-server model
is an architecture that
distributes applications
between servers that
typically powerful
computers that run the
software that controls
and maintains the
network. This software
is known as the network
operating system such
as Windows Server
2016 and client
computers such as
Windows 8 or Windows
10 machines.

33. Computers that
provide services:
•File Server
•Print Server
•Web Server
•Database server
•Proxy Server
•Application Server
•Mail (Messaging )
Server
•Fax Server
•Remote Access
Server
•Telephony Server
Servers

34. Peer-to-Peer Networking
•Peer-to-peer networking first and
foremost means that each computer
is treated as an equal.
•Today, peer computers can serve
data; the only difference is that they
can only serve it to a limited number
of computers at the same time.
•Each user is responsible for local
backup.
• Security considerations are minimal.

35. Watch the Live Demonstration
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36. Recommended Courses
NetCom Learning offers a comprehensive portfolio for IT Networking training
options. Please see below the list of recommended courses:
CompTIA Network+ Certification
Interconnecting Cisco Networking Devices, Part 1 v 3.0 - ICND1 (Entry)
Routing & Switching (ICND1 and ICND2) v3.0 Prep Boot Camp - CCNAX
(Associate)
Check out more IT Networking training options with NetCom Learning – CLICK
HERE

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A Deep Dive in the World of IT Networking (Part 2) – May 25

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