Mobile/ Fog computing

Question 1

What is Mobile Cloud Computing?

Answer 1

Mobile cloud computing refers to an infrastructure where both the data storage and data processing happen outside of the mobile device. more info in notes

Question 2

Mobile has a significant advantages by shifting/offloading to the cloud. List those advantages.

Answer 2

• -increased data storage capacity
• -availability of unlimited processing power
• -PC-like functionality for mobile applications
• -Extended battery life (energy efficient)

Question 3

What challenges does the Internet of Things (IoT) impose on the cloud model?

Answer 3

Latency: Data centres (computation) are generally geographically far away from IoT devices

Network bandwidth: Impossible to send all data to the cloud

Reliability: IoT nodes can have intermittent connectivity (e.g. too remote, signal blackout, etc)

Security: Business sensitive data needs to be sent to the cloud for analysing and storing

Question 4

What is the solution to the challenges imposed on the cloud model by the IoT?

Answer 4

Move the cloud (computation) even closer to the devices.

Question 5

What is fog computing?

Answer 5

The fog is a cloud close to the ground. It represents a data driven paradigm shift:
–Cloud - move data to the computation
–Fog - move the computation to the data
Fog computing extends the cloud computing and services to the edge of the network.