Question 1

What function in Python is used to output data to the console?

Accepted Answer

print()

Answer

display()

Answer

show()

Answer

output()

Question 2

What keyword is used to define a function in Python?

Accepted Answer

def

Answer

function

Answer

fun

Answer

define

Question 3

Which of the following is a correct way to handle exceptions in Python?

Accepted Answer

try-except block

Answer

for loop

Answer

switch case

Answer

if-else statement

Question 4

Which method is used to add an element at the end of a list in Python?

Accepted Answer

append()

Answer

insert()

Answer

extend()

Answer

add()

Question 5

What will be the output of the following code: print(type([]))?

Accepted Answer

Answer

Answer

Answer

Question 6

What is the result of the expression 10 // 3 in Python?

Accepted Answer

3

Answer

4

Answer

10

Answer

3.33

Question 7

Which SQL clause is used to filter records in a query?

Accepted Answer

WHERE

Answer

ORDER BY

Answer

GROUP BY

Answer

SELECT

Question 8

What SQL statement is used to remove a table from a database?

Accepted Answer

DROP TABLE

Answer

DELETE TABLE

Answer

CLEAR TABLE

Answer

REMOVE TABLE

Question 9

Which SQL keyword is used to prevent duplicate records in a query result?

Accepted Answer

DISTINCT

Answer

EXCLUDE

Answer

FILTER

Answer

UNIQUE

Question 10

What is the function of the SQL JOIN clause?

Accepted Answer

To combine rows from two or more tables based on a related column

Answer

To sort the result set

Answer

To group rows that have the same values

Answer

To filter records in a query

Question 11

What is the purpose of the SQL GROUP BY clause?

Accepted Answer

To group rows that have the same values in specified columns

Answer

To combine results from multiple tables

Answer

To filter records based on conditions

Answer

To sort the result set in a specific order

Question 12

What SQL command is used to retrieve data from a database?

Accepted Answer

SELECT

Answer

FETCH

Answer

EXTRACT

Answer

GET

Question 13

What function in NumPy is used to create an array filled with zeros?

Accepted Answer

np.zeros

Answer

np.ones

Answer

np.empty

Answer

np.full

Question 14

What is the function to calculate the mean of elements in a NumPy array?

Accepted Answer

np.mean

Answer

np.median

Answer

np.sum

Answer

np.average

Question 15

In NumPy, which function is used to concatenate two or more arrays along a specified axis?

Accepted Answer

np.concatenate

Answer

np.stack

Answer

np.hstack

Answer

np.append

Question 16

Which NumPy function generates random numbers from a uniform distribution over [0, 1)?

Accepted Answer

np.random.rand

Answer

np.random.random

Answer

np.random.randn

Answer

np.random.randint

Question 17

What is the purpose of the NumPy function np.arange?

Accepted Answer

To create an array with evenly spaced values within a specified interval

Answer

To create a random array

Answer

To flatten an array

Answer

To duplicate an array

Question 18

Which of the following is a feature of Power BI?

Accepted Answer

Data visualization

Answer

Video editing

Answer

Audio mixing

Answer

Text processing

Question 19

What file format does Power BI use for its report files?

Accepted Answer

.pbix

Answer

.xlsx

Answer

.pptx

Answer

.docx

Question 20

Which of the following is a data source that Power BI can connect to?

Accepted Answer

SQL Server

Answer

Adobe Photoshop

Answer

Paint

Answer

Notepad

Question 21

Which visualization type is NOT available in Power BI by default?

Accepted Answer

Gantt Chart

Answer

Pie Chart

Answer

Line Chart

Answer

Bar Chart

Question 22

What is a Power BI Dashboard?

Accepted Answer

A single-page, interactive view of your data

Answer

A detailed data entry form

Answer

A data cleaning tool

Answer

A programming interface

Question 23

What functionality does Power BI's 'What If' analysis provide?

Accepted Answer

Scenario modeling

Answer

Report printing

Answer

Data backup

Answer

Data entry

Question 24

What can you use to share Power BI reports with others?

Accepted Answer

Power BI Service

Answer

Word

Answer

Excel

Answer

PowerPoint

Question 25

Which of the following is a common algorithm used for classification tasks in Machine Learning?

Accepted Answer

Support Vector Machine

Answer

Principal Component Analysis

Answer

Linear Regression

Answer

K-Means Clustering

Question 26

What is the primary goal of supervised learning in machine learning?

Accepted Answer

To learn a mapping from inputs to outputs using labeled data

Answer

To find patterns without labeled data

Answer

To improve the speed of algorithms

Answer

To generate completely new data

Question 27

In the context of unsupervised learning, what does clustering refer to?

Accepted Answer

Grouping similar data points together into clusters

Answer

Reducing the dimensionality of data

Answer

Identifying the most important features in a dataset

Answer

Predicting outcomes based on labeled data

Question 28

What is the purpose of cross-validation in machine learning?

Accepted Answer

To assess how the results of a statistical analysis will generalize to an independent dataset

Answer

To find the optimal number of features for a model

Answer

To increase the size of the training dataset

Answer

To train a model on a single dataset

Question 29

What is the role of hyperparameters in machine learning models?

Accepted Answer

They are configuration settings that are set before the training process begins

Answer

They determine the architecture of the neural network

Answer

They are used to evaluate the model's performance after training

Answer

They are the parameters learned during the training process

Question 30

What is the purpose of a confusion matrix in machine learning?

Accepted Answer

To evaluate the performance of a classification model

Answer

To visualize clusters in data

Answer

To measure the accuracy of regression models

Answer

To track changes in data over time

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