Data science and event programming

Question 1

What is the main focus of Data Science tools in this course? a) Data Visualization b) Machine Learning c) Natural Language Processing d) Deep Learning

Answer 1

b) Machine Learning

Question 2

Which cloud platforms provide machine learning services? a) AWS b) Azure c) IBM Cloud d) All of the above

Answer 2

d) All of the above

Question 3

What is the main task of NLP services? a) Text Translation b) Object Detection c) Sentiment Analysis d) Data Storage

Answer 3

c) Sentiment Analysis

Question 4

Which of the following is used for text translation in the document? a) Google Translate b) AWS Translate c) Microsoft Translation d) All of the above

Answer 4

d) All of the above

Question 5

What does MLOps aim to achieve? a) Streamline data collection b) Streamline the end-to-end machine learning lifecycle c) Improve deep learning performance d) Monitor AI models

Answer 5

b) Streamline the end-to-end machine learning lifecycle

Question 6

What tool is mentioned for tracking experiments in MLOps? a) Weights & Biases b) TensorFlow c) PyTorch d) Keras

Answer 6

a) Weights & Biases

Question 7

What is the purpose of large language models like GPT? a) Text summarization b) Image recognition c) Code generation d) Both a and c

Answer 7

d) Both a and c

Question 8

What issue is raised in the section ‘ChatGPT is bullshit’? a) Models are always accurate b) Models do not generalize well and have hallucinations c) Models are infallible d) Models do not make any mistakes

Answer 8

b) Models do not generalize well and have hallucinations

Question 9

What is the characteristic of blocking I/O? a) API immediately returns the result b) API hangs the thread until the answer is ready c) API runs in the background d) None of the above

Answer 9

b) API hangs the thread until the answer is ready

Question 10

What is the role of Node.js? a) Frontend JavaScript development b) Backend JavaScript runtime c) Database management d) Text analytics

Answer 10

b) Backend JavaScript runtime

Question 11

What problem arises when computationally expensive code is executed in the browser? a) Code runs too fast b) The browser becomes unresponsive c) The browser automatically handles it d) No problem occurs

Answer 11

b) The browser becomes unresponsive

Question 12

Which method is used to make the browser responsive during expensive computations? a) Increase CPU usage b) Use async functions c) Block the thread until completion d) None of the above

Answer 12

b) Use async functions

Question 13

What does ‘Callback Hell’ refer to? a) Using synchronous functions b) Nested callbacks making code harder to read c) JavaScript framework issues d) All of the above

Answer 13

b) Nested callbacks making code harder to read

Question 14

Which programming model is introduced to solve callback hell? a) Promises b) Async/Await c) Multithreading d) Both a and b

Answer 14

d) Both a and b

Question 15

Which function is used to handle tasks asynchronously in JavaScript? a) setTimeout b) async function c) promise d) forEach

Answer 15

a) setTimeout

Question 16

What is the purpose of the Event Loop in JavaScript? a) Execute synchronous code b) Handle asynchronous callbacks c) Collect and handle garbage collection d) None of the above

Answer 16

b) Handle asynchronous callbacks

Question 17

What is the purpose of TensorFlow in machine learning? a) Data collection b) Model training c) Data visualization d) Model deployment

Answer 17

b) Model training

Question 18

Which of the following is NOT a cloud platform mentioned for machine learning? a) AWS b) Azure c) IBM Cloud d) Heroku

Answer 18

d) Heroku

Question 19

What kind of analysis is typically done using NLP? a) Sentiment Analysis b) Image Classification c) Video Analysis d) Network Traffic Monitoring

Answer 19

a) Sentiment Analysis

Question 20

Which of the following services is used for image detection in the cloud? a) Google Vision b) AWS Rekognition c) Microsoft Computer Vision d) All of the above

Answer 20

d) All of the above

Question 21

What does the term ‘AI hallucinations’ refer to? a) AI generating fake data b) AI running out of memory c) AI making false statements d) AI predicting future events

Answer 21

c) AI making false statements

Question 22

What programming language is commonly used for backend development with Node.js? a) Java b) JavaScript c) Python d) Ruby

Answer 22

b) JavaScript

Question 23

Which is NOT a feature of Node.js? a) Event-driven architecture b) Non-blocking I/O c) Multi-threaded processing d) Single-threaded execution

Answer 23

c) Multi-threaded processing

Question 24

What is the main benefit of using asynchronous functions in JavaScript? a) Decreases execution speed b) Allows multiple tasks to run simultaneously without blocking c) Increases memory usage d) Makes the code easier to read

Answer 24

b) Allows multiple tasks to run simultaneously without blocking

Question 25

Which feature of Node.js makes it well-suited for I/O-bound applications? a) Single-threaded execution b) Multi-threaded execution c) Synchronous I/O d) Blocking API calls

Answer 25

a) Single-threaded execution

Question 26

What is 'callback hell' in JavaScript? a) Overuse of variables b) Using nested callbacks which make code hard to maintain c) Using too many synchronous functions d) Overuse of loops

Answer 26

b) Using nested callbacks which make code hard to maintain

Question 27

What feature in modern JavaScript can resolve 'callback hell'? a) Async/Await b) Promises c) Generators d) Both a and b

Answer 27

d) Both a and b

Question 28

Which of the following is the main role of the event loop in JavaScript? a) Executes synchronous code b) Manages asynchronous tasks c) Runs the operating system d) Optimizes memory usage

Answer 28

b) Manages asynchronous tasks

Question 29

In which scenario would you use the 'setTimeout' function in JavaScript? a) To delay the execution of a function b) To read a file c) To handle multiple threads d) To sync tasks

Answer 29

a) To delay the execution of a function

Question 30

What is the result of the following code? 'setTimeout(function() { console.log('Hello') }, 1000); console.log('World');' a) 'Hello' then 'World' b) 'World' then 'Hello' c) Both at the same time d) Error

Answer 30

b) 'World' then 'Hello'

Question 31

What type of programming is associated with Node.js? a) Object-oriented programming b) Functional programming c) Event-driven programming d) Procedural programming

Answer 31

c) Event-driven programming

Question 32

What library does Node.js use to handle HTTP requests? a) Express b) Koa c) Axios d) React

Answer 32

a) Express

Question 33

Which of the following is NOT an event-driven library for Python? a) Tornado b) asyncio c) Flask d) Twisted

Answer 33

c) Flask

Question 34

What is the main advantage of using an event-driven model? a) It can handle multiple tasks simultaneously without blocking b) It decreases memory usage c) It improves CPU performance d) It simplifies the code

Answer 34

a) It can handle multiple tasks simultaneously without blocking

Question 35

In which framework is 'asyncio' mainly used? a) Node.js b) Tornado c) Python d) Go

Answer 35

c) Python

Question 36

Which of the following can be used to manage asynchronous tasks in JavaScript? a) setTimeout b) Promises c) Async/Await d) All of the above

Answer 36

d) All of the above

Question 37

What does the 'Event Loop' in JavaScript handle? a) Processing synchronous code b) Managing asynchronous code execution c) Memory allocation d) Security tasks

Answer 37

b) Managing asynchronous code execution

Question 38

Which function is used in JavaScript to handle a delay before executing code? a) setInterval b) setTimeout c) delayFunction d) asyncFunction

Answer 38

b) setTimeout

Question 39

What is the benefit of using async/await over promises in JavaScript? a) Async/await simplifies syntax and improves readability b) Promises are faster c) Async/await doesn’t support error handling d) Async/await can’t handle parallel tasks

Answer 39

a) Async/await simplifies syntax and improves readability

Question 40

What tool is commonly used for event-driven programming in Python? a) Flask b) Django c) Tornado d) Keras

Answer 40

c) Tornado

Question 41

What does the term 'non-blocking' mean in the context of Node.js? a) The code does not execute at all b) The API returns immediately without waiting for the result c) The code is executed after the event loop d) None of the above

Answer 41

b) The API returns immediately without waiting for the result

Question 42

What is the purpose of Python's 'asyncio' module? a) To provide a way to work with asynchronous code in Python b) To speed up synchronous operations c) To handle image processing d) To manage memory in large applications

Answer 42

a) To provide a way to work with asynchronous code in Python

Question 43

Which of the following is a major disadvantage of callback functions in JavaScript? a) Code readability b) Handling of exceptions c) Execution time d) Memory allocation

Answer 43

a) Code readability

Question 44

Which of the following is NOT a common use case for event-driven programming? a) Web servers b) GUIs c) Network communication d) Image processing

Answer 44

d) Image processing

Question 45

What is the purpose of 'setTimeout' in JavaScript? a) Set a delay to execute code asynchronously b) Execute code only once c) Set an infinite loop d) None of the above

Answer 45

a) Set a delay to execute code asynchronously

Question 46

Which of the following helps to manage concurrent tasks in Python? a) asyncio b) threading c) multiprocessing d) All of the above

Answer 46

d) All of the above

Question 47

What function is used to schedule code to run after a delay in Node.js? a) setTimeout b) setInterval c) process.nextTick d) delayFunction

Answer 47

a) setTimeout

Question 48

What is the term used when a function is invoked repeatedly without waiting for the previous function to finish in Node.js? a) Synchronous b) Asynchronous c) Blocking d) Multi-threaded

Answer 48

b) Asynchronous