Pharica Slideshare

1. Next

2.  Specific objective
 Introduction
 Rational
 Definition of
topologies(audio)
 Ring topology
 Advantage and
disadvantage(Ring)
 Mesh topology
 Advantage and
disadvantage(Mesh)
 Star topology
 Advantage and
disadvantage(Star)
 Bus topology
 Advantage and
disadvantage(Bus)
 Tree topology
 Advantage and
disadvantage(Tree)
 Video
 Class Activity
 Conclusion
Click any
word for
information

3. content
At the end of this lesson, students should be able
to:
• define what is a network topology
• differentiate between at least three types of
topologies accurately
• explain the advantages and disadvantages of
network topologies.

4. This lesson speaks about network topologies. In
communication networks, a topology is usually a
schematic description of the arrangement of a
network, including its nodes and connecting lines.
This interactive power point will allow learners to
learn at their own time and speed and also attends to
individuals learning style.
content
Introduction

5.  As an teacher of technology-related subjects, it
is necessary to stay current with new
processes, ideas, and methods. Conducting this
lesson will give me the opportunity to explore
these areas and bring the new ways of teaching
and learning to the classroom.
content
RATIONALE

6. Network topology refers to the layout of a network and
how different nodes in a network are connected to each
other and how they communicate. Topologies are either
physical (the physical layout of devices on a network)
or logical (the way that the signals act on the network
media). (Beal, 2011)
content
What are network topologies

7. A ring topology is a computer network configuration
where the devices are connected to each other in a circular
shape. Each packet is sent around the ring until it reaches its
final destination.
Advantages &
disadvantages
content
What is Ring
Topology?

8. Advantages
 Each node send the data when it receives an empty token. This
helps to reduces chances of collision.
 All the traffic flows in only one direction at very high speed.
Disadvantages
 Each packet of data must pass through all the computers to
reach its destination. This makes it slower than Star topology.
 If one workstation or port goes down, the entire network gets
affected.
content Next
Advantages and Disadvantages of Ring

9. The mesh network topology employs either of two schemes,
called full mesh and partial mesh. In the full mesh topology,
each workstation is connected directly to each of the others.
Info. on partial mesh
topology
content
Advantages &
disadvantages
Mesh
Topology

10. Advantages
 Data can be transmitted from different devices
simultaneously and can withstand high traffic.
 The network does not fails if one computer crashes.
Disadvantages
 Overall cost of this network is way too high as compared
to other networks topologies.
 Set-up and maintenance of this topology is very difficult.
content
Advantages and Disadvantages of Mesh

11. In the star network topology, there is a central computer or server to
which all the workstations are directly connected. Every workstation
is indirectly connected to every other through the central computer.
content
Advantages &
disadvantages
Click there
Star
Topology

12. Advantages
 It is very easy to install and manage.
 Any problem in one particular node doesn't affect the
performance of other nodes in the network.
Disadvantages
 It is highly dependent on the functioning of the central
hub.
 If the server is slow, it will cause the entire network to
slow down.
content
Advantages and Disadvantages of Star

13. In the bus network topology, every workstation is connected to a
main cable called the linear cable with a terminator at each end.
When using bus topology, when a computer sends out a signal, the
signal travels the cable length in both directions from the sending
computer.
content
Advantages &
disadvantages
Bus Topology

14. Advantages
 Easy to connect a computer or peripheral to a linear
bus.
 Requires less cable length than a star topology.
Disadvantages
 Entire network shuts down if there is a break in the
main cable
 It is not suitable for networks with heavy traffic
content
Advantages and Disadvantages of Bus

15. This is a "hybrid" topology that combines characteristics of
linear bus and star topologies. In a tree network, groups of
star-configured networks are connected to a linear bus
backbone cable. Keep Reading:
http://www.ianswer4u.com/2012/01/tree-topology-advantages-
and.html#axzz41KPo6xGv
content
Advantages &
disadvantages
Tree Topology

16. Advantages
 Error detection and correction is easy.
 If one segment is damaged, other segments are not affected.
Disadvantage
 As more and more nodes and segments are added, the
maintenance becomes difficult.
Content Quiz Activity
Advantages and Disadvantages of Tree
topology

17. Click to start
Quiz time !!
Put on your thinking caps
INTRUCTION:
There are five multiple choice question click the
correct answer provided. Good luck!
Content

18. 1. What is a network topology?
 A. The way in which we communicate by using the internet from
only a computer.
 B. The layout of a network and how devices in a network are
connected to each other and communicate.
 C. Talking to friends and family over the world.
 D. This is a layout of computers that uses the internet to work.
content
Class Activity
(Click the correct answer)

19.  A. Error detection and correction is easy.
 B. All the traffic flows in only one direction at very
high speed.
 C. Requires less cable length than a star topology.
 D. Easy to connect a computer or peripheral to a linear bus.
content

20.  A. Ring topology
 B. Mesh topology
 C. Tree topology
 D. Bus topology
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21.  A. It is not suitable for networks with heavy traffic
 B. Set-up and maintenance of this topology is very difficult.
 C. Each packet of data must pass through all the computers to
reach its destination which makes it slow.
 D. None of the above
content

22.  A. Star topology has a central hub and ring topology don’t.
 B. Both are connected to a main cable called the linear
cable with a terminal.
 C. Ring topology and star topology are both types of
network topologies.
 D. Start topology has a central hub and also ring topology.
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23. content

24. Conclusion
Content
In conclusion it has been proven that
topologies are the ways in which technology devices
which uses the internet communicate with each
other. The five common topologies are bus, ring, star,
mesh and tree topology. These topologies has
different features and advantages and disadvantages
which causes different reactions on the way in which
information is transferred.

25. Try
again!!

26. Quiz

27. Bus topology. (2009). Retrieved from minisecu.com: 
http://www.omnisecu.com/basic-networking/network-
topologies-bus-topology.php
Beal, V. (2011, May 5). Dictionaery.com. Retrieved Feb 2016, 26,
from
http://www.webopedia.com/quick_ref/topologies.asp
Gyaan, c. (2014, October 16). Whatls.com. Retrieved from
https://www.youtube.com/watch?v=kUdw7XulC5Y
Wigmore, I. (2015). Whatls.com. Retrieved feb 25, 2016, from
Topology:
http://whatis.techtarget.com/definition/network-topology
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28. THE END
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