IoT Lecture 5: Data Access and Machine Learning
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Questions and Answers

What is the main purpose of using well-documented format for data exchange in IoT?

  • To increase the complexity of the data exchange process
  • To minimize the storage space required for data exchange
  • To restrict the usage of distributed file systems
  • To ensure that each device or application can produce or consume data correctly (correct)

    • Why might the name 'Comma Separated Values' be misleading?

  • It can only use commas as the separator character
  • It doesn't actually separate values
  • It cannot store records into a file
  • The format can use any separator character (correct)

    • What is the purpose of using an escape character in the CSV format?

  • To handle cases where the record data contains the separator character (correct)
  • To indicate the end of a record
  • To escape from using commas as separator characters
  • To separate values within a record

    • Why is the 'csv' module in Python considered to have limitations regarding date and time?

    <p>It cannot handle date and time data with time zone information</p> Signup and view all the answers

    In which scenario would usage of distributed file systems be mandated for IoT data exchange?

    <p>When the data producers need to share the same storage and produce data at very high throughput</p> Signup and view all the answers

    Why is text format considered as the simplest format to use for IoT data exchange?

    <p>Because it does not require any modules or libraries to interact with text format as all programming languages support reading and writing from files</p> Signup and view all the answers

    What format is supported by Python module 'NumPy'?

    <p>CSV format with numeric values only</p> Signup and view all the answers

    Which Python module supports CSV format and can handle mixed data types including strings, date, time, and numeric values?

    <p>Pandas</p> Signup and view all the answers

    What is the most common used data format in web and mobile applications?

    <p>JSON</p> Signup and view all the answers

    Which type of learning is used to predict a real-valued output or a discrete label?

    <p>Supervised Learning</p> Signup and view all the answers

    In which type of learning does the model learn by itself the underlying patterns and relationships in the data?

    <p>Unsupervised Learning</p> Signup and view all the answers

    What type of machine learning is linear regression?

    <p>Supervised Learning</p> Signup and view all the answers

    In machine learning, what is the goal of regression?

    <p>To find a function for prediction</p> Signup and view all the answers

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