What role does Big Data play in meteorology?

It allows meteorologists to produce accurate weather forecasts and predict natural disasters.

It helps meteorologists reduce the number of weather forecasts.

It simplifies the storage of weather data.

Why do advertising companies use Big Data analytics?

To gather data on consumer behavior and tailor advertising campaigns

To increase the size of their databases

What does the 'Autonumber' data type do in a database?

Automatically assigns a unique number to each record

What is Big Data analytics?

The analysis of large data sets to identify new opportunities and use data more efficiently

The process of collecting data from social media

The storage of data in large databases

The visualization of small data sets

Considering the high volume and variety of modern data, which approach should a company take to effectively analyze Big Data?

Invest in Big Data technologies that can handle high-speed processing and diverse data types

Use traditional spreadsheets and databases

Limit data collection to only text and images

Avoid using any modern data sources

How do banks benefit from Big Data analytics?

By quickly identifying unusual account activity and flagging potential illegal use

By storing customer data securely

What does the `IF` function do in a spreadsheet?

It checks a condition and returns one value if true and another value if false.

It sorts data in ascending order.

How does 'Variety' affect Big Data?

It refers to the range of data formats and types.

It increases the volume of data collected.

How can Big Data analytics help in the healthcare industry?

By predicting and preventing some diseases through analysis of search terms and health data

By creating new social media platforms

By reducing the number of doctors needed

By increasing the cost of healthcare

Imagine you are working for a delivery company. How might Big Data analytics be used to improve your operations?

By analyzing vehicle telematics and calculating the best routes to save fuel

By randomly assigning delivery routes

Why is it important to select the correct data type at the design stage of a database?

To ensure that the data can be processed correctly

To make the database look more attractive

To reduce the size of the database

To prevent the need for a primary key

What does the `OR` function do in a spreadsheet?

It returns true if at least one of the conditions is true.

It returns true if all conditions are true.

Why can't traditional applications always process modern data effectively?

They are not designed to handle the large volume and variety of modern data.

They only work with images and text.

Which of the following best describes when the formula `=IF(OR(D2>=20,C2>2),"Its raining","No Rain")` will return "Its raining"?

If either D2 is 20 or greater, or C2 is greater than 2

Only if D2 is exactly 20 and C2 is exactly 2

Only if both D2 is 20 or greater and C2 is greater than 2

If neither D2 is 20 or greater nor C2 is greater than 2

What is the significance of 'Veracity' in Big Data?

It measures the accuracy and quality of the data.

It refers to the amount of data collected.

It refers to the variety of data formats.

It measures the speed of data processing.

What is the purpose of breaking down data items into the smallest units possible (atomic data structure)?

To make it easier to enter and search for specific data

In the formula `=IF(OR(D2>=20,C2>2),"Its raining","No Rain")`, what happens if both conditions `D2>=20` and `C2>2` are false?

The formula returns "Its raining".

How could you break down the 'Student name' data item to create an atomic data structure?

Divide it into 'First Name' and 'Last Name'

Combine it with the 'Student address'

Include the age and grade in the name field

Use a single field for full name

What types of data can organizations use today?

Images, video, audio, animation, text, and GPS data

What is the role of `OR` in the formula `=IF(OR(D2>=20,C2>2),"Its raining","No Rain")`?

To check if at least one of the conditions is true

To ensure both conditions are true

To calculate the sum of D2 and C2

How would you modify the formula `=IF(OR(D2>=20,C2>2),"Its raining","No Rain")` to return "Wet" instead of "Its raining" and "Dry" instead of "No Rain"?

`=IF(OR(D2>=20,C2>2),"Wet","Dry")`

`=IF(AND(D2>=20,C2>2),"Wet","Dry")`

`=IF(NOT(OR(D2>=20,C2>2)),"Wet","Dry")`

`=IF(OR(D2>=20,C2>2),"Dry","Wet")`

A mobile-phone company wants to predict when a customer might leave for another provider. Which data sources might they analyze using Big Data analytics?

Customer management, billing, and social media applications

How might users experience problems if they tried to search for all students with 'Age = 13' or 'Stage = 8' in a poorly designed database?

The search results might be inaccurate if data types are incorrect.

They would not be able to find any records.

They would have to manually count the records.

Why is 'Value' important in Big Data?

It indicates how useful the data is for the organization.

It determines the amount of data collected.

It measures the speed at which data is generated.

It organizes the data into structured formats.

Imagine you have a relational database with tables for 'country' and 'continent'. If you find that the population of Asia is incorrect in one record but correct in another, what should you do?

Update the correct record and ignore the other

Remove redundant data and ensure the correct population is recorded only once in the continentTBL

Duplicate the correct population across all records

Delete all records referring to Asia

Suppose you want the formula `=IF(OR(D2>=20,C2>2),"Its raining","No Rain")` to also return "Stormy" if D2 is greater than or equal to 30. Which formula would you use?

`=IF(OR(D2>=30),"Stormy",IF(OR(D2>=20,C2>2),"Its raining","No Rain"))`

`=IF(D2>=30,"Stormy",IF(OR(D2>=20,C2>2),"Its raining","No Rain"))`

`=IF(AND(D2>=30,C2>2),"Stormy","Its raining")`

`=IF(D2>=30,"Stormy",IF(AND(D2>=20,C2>2),"Its raining","No Rain"))`

Why do large organizations need to access and analyze data at high speed?

To learn more about their users and promote their goods and services

To decrease the complexity of data

To avoid using traditional applications

How might a company use 'like' and 'dislike' icons data from a social media website to their advantage?

By understanding customer preferences to improve their products

By slowing down their data processing

By deleting the data immediately

Year9 Unit 5 Big Data Modeling n Analysis

Authored by Sashirekha Krishnasamy

Computers

9th - 12th Grade

Used 1+ times

Year9 Unit 5 Big Data Modeling n Analysis

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46 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which service uses Big Data analytics to plan efficient routes for drivers?

Google Maps

Facebook

Amazon

YouTube

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an example of data being presented in a modern format?

Static text documents

Live video streams

Printed books

Handwritten notes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'Volume' in Big Data refer to?

The speed at which data is processed

The accuracy of the data

The large amount of data collected and analyzed

The variety of data formats

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Big Data?

Data that is easy to process using traditional applications

Data that cannot be easily processed using traditional applications due to its large volume and variety

Data that is only in the form of text

Data that can be processed at a slow speed

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does 'Velocity' in Big Data mean?

The speed at which data is generated and processed

The usefulness of the data

The variety of data formats

The volume of data collected

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do media streaming services like Netflix use Big Data analytics?

To monitor network speed

To analyze international viewing habits and create or buy programs

To store movies and TV shows

To manage user accounts

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT one of the 5Vs of Big Data?

Volume

Velocity

Variety

Visualization

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Year9 Unit 5 Big Data Modeling n Analysis

Which service uses Big Data analytics to plan efficient routes for drivers?

What is an example of data being presented in a modern format?

What does the 'Volume' in Big Data refer to?

What is Big Data?

What does 'Velocity' in Big Data mean?

How do media streaming services like Netflix use Big Data analytics?

Which of the following is NOT one of the 5Vs of Big Data?

What role does Big Data play in meteorology?

Why do advertising companies use Big Data analytics?

Which data type should be used to store a field that has only two possible values, such as YES/NO?

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