Pervasive Computing at Jordan University Of Science And Technology | Flashcards & Summaries

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Lernmaterialien für pervasive computing an der Jordan University of Science and Technology

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what is a transducer?

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Transducers are devices that convert energy from one form to another.

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What is a gateway in Fog architcture?

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Fog devices that connect sensors to the Internet are generally called gateways.

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What are the routing issues faced in MANET?

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◦ Frequent route changes
◦ Relatively low data rate links which is made worse by mobility

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what is logic based context modelling?

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Logic defines conditions on which a concluding expression or fact may be derived from a set of other expressions or facts (reasoning)

context is defined as facts, expressions and rules

High degree of formality – Cannot inherently deal with uncertain or conflicting information

Suit better in cases, where we are certain about the quality of the collected data

 Standard Retrieval Method: Inference

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What are homogeneous nodes in MANET?

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all nodes use the same communication protocol 

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What is an actuator ?

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actuators do the opposite of an input transducer. They take electrical signals and convert them into another form of energy. 

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What are the requirements of context modelling?

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1. Heterogeneity and mobility

2. Dependencies

3. Timeliness

4. Imperfections

5. Reasoning

6.Usability of modelling formalisms

7. Efficient context provisioning



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What affects the node connectivity in MANET?

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1. dynamic nature of wireless medium

2. node mobility departure /arrival

3. power outage

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In MANETS what are heterogeneous nodes?

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TESTE DEIN WISSEN

Nodes use different protocols for communication

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How to convert change in resistance to change in voltage??

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Using a voltage divider or Resistance Bridge with instrumental amplifier

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What is hierarchal topology in MANET?

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Each group of nodes can communicate with one master only, if not available store data until available 

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What is MANET flat topology?

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All nodes are on the same level, any node can communicate with any node.

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Beispielhafte Karteikarten für deinen pervasive computing Kurs an der Jordan University of Science and Technology - von Kommilitonen auf StudySmarter erstellt!

Q:

what is a transducer?

A:

Transducers are devices that convert energy from one form to another.

Q:

What is a gateway in Fog architcture?

A:

Fog devices that connect sensors to the Internet are generally called gateways.

Q:

What are the routing issues faced in MANET?

A:

◦ Frequent route changes
◦ Relatively low data rate links which is made worse by mobility

Q:

what is logic based context modelling?

A:

Logic defines conditions on which a concluding expression or fact may be derived from a set of other expressions or facts (reasoning)

context is defined as facts, expressions and rules

High degree of formality – Cannot inherently deal with uncertain or conflicting information

Suit better in cases, where we are certain about the quality of the collected data

 Standard Retrieval Method: Inference

Q:

What are homogeneous nodes in MANET?

A:

all nodes use the same communication protocol 

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Q:

What is an actuator ?

A:

actuators do the opposite of an input transducer. They take electrical signals and convert them into another form of energy. 

Q:

What are the requirements of context modelling?

A:

1. Heterogeneity and mobility

2. Dependencies

3. Timeliness

4. Imperfections

5. Reasoning

6.Usability of modelling formalisms

7. Efficient context provisioning



Q:

What affects the node connectivity in MANET?

A:

1. dynamic nature of wireless medium

2. node mobility departure /arrival

3. power outage

Q:

In MANETS what are heterogeneous nodes?

A:

Nodes use different protocols for communication

Q:

How to convert change in resistance to change in voltage??

A:

Using a voltage divider or Resistance Bridge with instrumental amplifier

Q:

What is hierarchal topology in MANET?

A:

Each group of nodes can communicate with one master only, if not available store data until available 

Q:

What is MANET flat topology?

A:

All nodes are on the same level, any node can communicate with any node.

pervasive computing

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