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Worksheets2nd 9 Weeks Assessment Test
Total questions: 55
Worksheet time: 28mins
What does JavaScript mainly do?
Styles webpages
Makes webpages interactive
Stores files
Creates servers
Which output method shows a pop-up message?
console.log()
alert()
write()
display()
Where do you see console.log() results?
On the webpage
In the HTML file
In the browser console
In a pop-up window
Which is a correct variable declaration?
var 10 = x
let age = 15
constant pi = 3.14
var = name
const means:
Value can change
Value never changes
Only stores strings
Deletes variables
Which is a string?
25
true
"Hello"
[1,2,3]
Which operator gives remainder?
+
*
/
%
Which loop repeats a known number of times?
for
while
repeat-until
repeat()
Which is an example of an Array?
"apple"
[10, 20, 30]
true
{name: "AJ"}
What does === do?
Assigns a value
Adds numbers
Compares value & type
Checks for strings
What does document.write() do?
Erases the page
Writes directly on the webpage
Creates comments
Runs the code twice
Variety means:
Data comes from many types
Data is always true
Data is slow
Data is expensive
A good survey question must be:
Confusing
Leading
Clear & unbiased
Long & detailed
Velocity example:
Tweets per second
Picture size
Types of videos
Prices online
Veracity refers to:
Truthfulness
Size
Speed
Format
Value refers to:
Useless data
Helpful insights you get
Random numbers
Pretty charts
Which is a correct if statement?
if score >= 90:
if(score > 90){ }
if score(90){ }
if{score >= 90}
Which type of survey question gives detailed answers?
Multiple choice
Yes/No
Open-ended
Rating scale
What keyword stops a loop?
stop
exit
break
quit
Which output interrupts code until “OK” is clicked?
console.log()
alert()
document.write()
write()
alert shows a pop-up message.
true
false
console.log is printed in the browser console.
true
false
prompt is used to ask the user a question.
true
false
A loop repeats code.
true
false
A object stores key-value pairs.
true
false
A string stores text like "Hello".
true
false
A function is a reusable block of code.
true
false
veracity means truth or accuracy of data.
true
false
volume means size of data.
true
false
variety means different types of data formats.
true
false
Which keyword is used to declare a variable in JavaScript?
loop
var
break
array
Which data type can store multiple values?
String
Array
Boolean
Number
Which keyword is used to declare a variable that can change value?
const
let
static
final
Which of the following is NOT a data type in JavaScript?
String
Character
Boolean
Number
What does the 'prompt()' function do?
Stops the code execution
Writes text on the webpage
Shows a pop-up to get user input
Displays a message in the console
How does Netflix use Big Data?
To detect fake news on social media
To recommend shows based on viewer trends
To process 40,000 searches every second
To store terabytes of weather data
Which of the following best describes the importance of the 5 V's in Big Data?
They focus only on entertainment-related data
They limit the amount of data companies can collect
They ensure data is stored in physical files
They help define what makes data 'big' and guide its analysis
Why is Veracity important in Big Data?
It ensures data is accurate and reliable, preventing bad decisions
It ensures data is created quickly
It ensures data is stored in large quantities
It ensures data is useful for entertainment purposes
Which of the following is an example of 'Value' in Big Data?
Emails containing text data
NASA satellites collecting terabytes of weather data each hour
Google processing 40,000 searches every second
Predictive analytics for healthcare
What is the definition of Big Data?
Small and simple data sets that are easy to process
Extremely large and complex data sets requiring advanced tools to store, analyze, and visualize
Data stored in physical files and folders
Data that is only used for entertainment purposes
Which of the following is an example of Big Data?
A personal diary entry
A single Excel spreadsheet
A single photo uploaded to Instagram
Google handling over 3.5 billion searches per day
What does the 'Volume' characteristic of Big Data refer to?
The speed at which data is created
The amount of data generated and stored
The accuracy and reliability of data
The usefulness of data
Which of the following is an example of 'Volume' in Big Data?
Twitter generating 500 million tweets per day
Netflix recommending shows based on viewer trends
Facebook users uploading 350 million photos daily
Weather predictions based on incomplete readings
What does the 'Velocity' characteristic of Big Data refer to?
The amount of data generated and stored
The speed at which data is created, processed, and shared
The different types of data collected
The accuracy and trustworthiness of data
Which of the following is an example of 'Velocity' in Big Data?
Predictive analytics for healthcare
NASA satellites collecting terabytes of weather data each hour
Google processing 40,000 searches every second
Emails containing text data
What does the 'Veracity' characteristic of Big Data refer to?
The amount of data generated and stored
The accuracy, trustworthiness, and quality of data
The speed at which data is created
The usefulness of data
Which of the following is an example of 'Veracity' in Big Data?
Emails containing text data
YouTube storing 500 hours of video per minute
Fake news detection on social media
Netflix recommending shows based on viewer trends
What does the 'Value' characteristic of Big Data refer to?
The usefulness of data — turning it into insights or benefits
The accuracy and reliability of data
The amount of data generated and stored
The speed at which data is created
Which of the following is a well-written survey question?
Do you think climate change is a serious problem?
How often do you recycle and compost?
What are your thoughts on the environmental impact of plastic pollution?
On a scale of 1-5, how concerned are you about global warming?
Which question avoids bias?
Don't you think we should invest more in renewable energy sources?
How do you feel about the government's efforts to reduce carbon emissions?
What are the primary benefits of using solar energy?
Should we prioritize fossil fuel use or renewable energy sources?
Which question is clear and concise?
What are your opinions on the complex issue of climate change and its potential impacts on future generations?
How do you feel about the environmental impact of human activities?
Do you believe that humans are primarily responsible for climate change?
What are your thoughts on the effectiveness of recycling programs?
Which question is open-ended?
Do you agree or disagree with the statement "Climate change is a serious threat"?
How do you think we can reduce our carbon footprint?
On a scale of 1-5, how important is environmental protection to you?
Do you recycle plastic, paper, or glass?
Which question avoids leading language?
Don't you think that everyone should drive electric cars?
How do you feel about the use of renewable energy sources?
Isn't it obvious that we need to reduce our reliance on fossil fuels?
What are the potential drawbacks of nuclear energy?
Which question is specific and measurable?
How often do you recycle?
Do you recycle?
What do you think about recycling?
Why is recycling important?
Which question is neutral?
Don't you think that global warming is a hoax?
How do you feel about the scientific consensus on climate change?
Isn't it clear that humans are causing climate change?
What are the potential consequences of climate change?
