Included the information about data communication and networking issues in real world.

1. EP 1793
13/AS/125
Gihani Gamage

2. 1. Accessibility issues
2. Slow network connection
3. Transmission issues
4. Security issues
5. Performance issues
2

3. Failures of
telecommunication networks
which
connects subscribers
to their
immediate service provider.
3

4. • Need to check whether the device is properly
connected to the router.
• Can use command prompt to verify the connection
status to the computer.
4

5. 5
1. Distance
2. Obstructions
Walls containing studs
metal pipes
glass surfaces can cause noticeable slowdowns.

6. 6
3. Viruses
Viruses may reduce the amount of processing power and
speed available for data from the internet.
4. Software
The computer might need updated software.
5. Age of the computer
Some older devices may need additional memory to get the
best speeds.

7. 7
• Attenuation
reduction in signal strength
• Crosstalk
disturbance which is occurred by electronic or magnetic fields
• Noise
anything that interfere with the communication process
• Skew
A problem related to timing in parallel cables

8. 8
• Data loss
• Security breaches
• Hacking and viruses
Major security issues are,

9. • Use firewalls and anti-virus software
• Security settings in the router or the operating system
• Data backup
• Data access to authorised personnel only
9

10. Performance may be limited within a computer or within
the network.
Common performance issues:
• Too much consolidated data.
• Too many dashboards
• Not displaying what we need
• Problems not immediately obvious
• Not real time or integrated
10

11. 11
https://www.dataexpedition.com/support/notes/tn0009.html
https://www.sqa.org.uk/e-learning/NetTechDC01BCD/page_42.htm
https://www.campbellsci.com/blog/communication-problems-serial-connections
https://www.remoteutilities.com/about/blog/Remote_Utilities/Common_Network_Problems_and
_their_Solutions/

12. 12
Thank you…