Quiz 2 (Part-Time KL)

An infographic displays the relative frequencies of the top 100 most common GIF's used in text messaging for each of the past 12 months. Which of the following conclusions cannot be drawn from such a representation of GIF usage?

• You can determine the growth or decline in popularity of a single GIF.

• You can determine the average education level of GIF users based on GIF use.

• You can determine what percentage of text messages contain a particular GIF.

• You can determine how long the most popular GIF has held the #1 spot.

Which of the following is NOT a benefit of making digital transformation and scientific databases openly available across the Internet?

• Data scientists can discover previously unnoticed trends and patterns hidden with large data sets.

• Innovations in medicine can be developed from the increased knowledge gained from large datasets.

• 
  Scientific researchers can more easily share data on research projects.

• 
  Inaccurate and misleading data can be more easily disseminated to scientific researhers.

Which of the following can be used to extract structured information from unstructured data?

• Organise data into information

• Create frameworks for information

• Identify patterns in data

• All of the above

For situations that may be too dangerous, costly, or otherwise too difficult to test in the real world, what do computer scientists create in order to help discover new knowledge and create new hypotheses related to the situation they are studying?

• 
  Classifications

• Simulations

• Infographics

• Regressions

What are the main components of Hadoop Ecosystem?

• MapReduce, HDFS, YARN

• Gelly, Table, CEP

• MLib, GraphX

• None of the mentioned

Which is an example of online tracking?

• An app that includes links a user can click to see different types of content.

• Any website that has advertisements.

• An app that tracks which links a user clicks on and that uses this to predict what to show them in the future.

• None above

What is the primary purpose of data visualisation in data analysis?

• To create complex algorithms

• To store data in databases

• To increase the size of data sets

• To present data in a graphical format for easier understanding

Which of the following best describes the term 'Big Data'?

• Data that is only used for scientific research

• Data that is collected from social media platforms

• Data that is only stored in cloud services

• Data that is too large to be processed by traditional data processing applications

In the context of machine learning, what does the term 'training data' refer to?

• Data used to evaluate the performance of a model

• Data used to teach the model to make predictions

• Data that is collected after the model is deployed

• Data that is irrelevant to the model's learning process

What does the term 'data mining' refer to?

• The practice of analyzing large datasets to discover patterns

• The method of visualizing data for presentations

• 
  The process of collecting data from various sources

• The act of storing data in databases