Computer networks : intro to networking, pros and cons, uses, network edges : end devices, client server and peer to peer

1. 1.1 Computer Networks

2. What is Networking?

3. What is Networking?
Process of connecting one or more network
devices through any networking means i.e.
Software or hardware that manages data
trafc and enables users to share fle and
resources

4. What are Computer Networks?

5. What are Computer Networks?
Means a collection of autonomous computers
interconnected by a single technology in the
sense of exchanging fles and resources.

6. Uses of Computer Networks?

7. Uses of Computer Networks?
a) Resource Sharing

8. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability

9. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability
c) Saving Money

10. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability
c) Saving Money
d) Scalability

11. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability
c) Saving Money
d) Scalability
e) Access to Remote Information

12. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability
c) Saving Money
d) Scalability
e) Access to Remote Information
f) Person to Person Communication

13. Uses of Computer Networks?
a) Resource Sharing
b) High Reliability
c) Saving Money
d) Scalability
e) Access to Remote Information
f) Person to Person Communication
g) Interactive Entertainment

14. Pros of Computer Networks?

15. Cons of Computer Networks?

16. Cons of Computer Networks?
a) Initial Purchase is high

17. Cons of Computer Networks?
a) Initial Purchase is high
b) Management is Burden

18. Cons of Computer Networks?
a) Initial Purchase is high
b) Management is Burden
c) Security Problem

19. End Devices

20. What are End Devices?
The network devices that people are most familiar with are called end
devices.
End devices are either the source or destination of data transmitted
over the network.
Examples are :
– Computers
– Network Printers
– Mobile hand held device
– Security Cameras

21. Edge Devices

22. What are Edge Devices?
The network devices that connects more than one
Autonomous Networks
Edge devices are basically Edge Routers

23. Client Server Architecture

24. Client Server Architecture

25. Pros of Client Server Architecture
a) Centralization

26. Pros of Client Server Architecture
a) Centralization
b) Proper Management

27. Pros of Client Server Architecture
a) Centralization
b) Proper Management
c) Scalability

28. Pros of Client Server Architecture
a) Centralization
b) Proper Management
c) Scalability
d) Security

29. Pros of Client Server Architecture
a) Centralization
b) Proper Management
c) Scalability
d) Security
e) Back-up and Recovery possible

30. Cons of Client Server Architecture
a) Congestion in Network

31. Cons of Client Server Architecture
a) Congestion in Network
b) Not Robust. What if Server Fails !

32. Cons of Client Server Architecture
a) Congestion in Network
b) Not Robust. What if Server Fails !
c) Cost

33. Cons of Client Server Architecture
a) Congestion in Network
b) Not Robust. What if Server Fails !
c) Cost
d) Need Professional IT people

34. Peer to Peer Architecture

35. Peer to Peer Architecture

36. Pros of Peer to Peer Architecture
a) Easy to set up

37. Pros of Peer to Peer Architecture
a) Easy to set up
b) Low Cost Initially

38. Pros of Peer to Peer Architecture
a) Easy to set up
b) Low Cost Initially
c) Each device is master of its own

39. Pros of Peer to Peer Architecture
a) Easy to set up
b) Low Cost Initially
c) Each device is master of its own
d) Robustness

40. Cons of Peer to Peer Architecture
a) No Central Point of data storage

41. Cons of Peer to Peer Architecture
a) No Central Point of data storage
b) Difcult to backup data

42. Cons of Peer to Peer Architecture
a) No Central Point of data storage
b) Difcult to backup data
c) Security is weak

43. Cons of Peer to Peer Architecture
a) No Central Point of data storage
b) Difcult to backup data
c) Security is weak
d) Difcult to access data

44. Client Server Architecture
VS
Peer to Peer Architecture

45. Client Server Architecture Peer to Peer Architecture
Need of a Specifc Server Each node acts as Server and Client

46. Client Server Architecture Peer to Peer Architecture
Need of a Specifc Server Each node acts as Server and Client
Client request for service and server
respond with the service
Node can request for services and
can also provide the services

47. Client Server Architecture Peer to Peer Architecture
Need of a Specifc Server Each node acts as Server and Client
Client request for service and server
respond with the service
Node can request for services and
can also provide the services
Expensive to
implement
Inexpensive to
implement

48. Client Server Architecture Peer to Peer Architecture
Need of a Specifc Server Each node acts as Server and Client
Client request for service and server
respond with the service
Node can request for services and
can also provide the services
Expensive to
implement
Inexpensive to
implement
Data is stored in a centralized server Each node has its own data

49. Client Server Architecture Peer to Peer Architecture
Need of a Specifc Server Each node acts as Server and Client
Client request for service and server
respond with the service
Node can request for services and
can also provide the services
Expensive to
implement
Inexpensive to
implement
Data is stored in a centralized server Each node has its own data
Access, Backup and Recovery of Data is
Easy
Access, Backup and Recovery of
Data is hard

50. Possible Questions
a) What is Computer Networks? Write its Uses, Pros and Cons?
b) Explain about Client Server Architecture with its Pros and
Cons?
c) Explain about Peer to Peer Architecture with its Pros and
Cons?
d) Contrast between Client Server Architecture and Peer to Peer
Architecture.

51. Next Lecture
Connection oriented Services
And
Connection Less Services
with their Pros and Cons

52. Thank You !!!!