Class

8 Answer Key
Trackpad PRO (Ver. 5.1)

1. Networking Concepts

uiz Bee
Page-19

1. LAN is a digital communication system that interconnects a larger number of computers and
other peripheral devices within a radius of less than 1 km.
2. It is a satellite-based navigation system which is used to identify the geographical location of
an object.
3. HTTP stands for Hypertext Transfer Protocol. It is the primary protocol used to exchange data
between a web browser and a website.

1. a. (ii) b. (ii) c. (iii) d. (iv) e. (i)

2. a. Node b. Modem c. Hub d. Bandwidth e. Server
3. 3. a. F b. T c. T d. F e. F
4. a. Gateway b. IP Address c. MAN (Metropolitan Area Network)
d. Ring topology e. Protocol
5. a. The Network Interface Card (NIC) connects a computer to a network and allows it to
communicate with other computers on the network.

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 1

 b.

Client-server network Peer-to-peer network

This is the most efficient network architecture An alternative to the client-server approach
that consists of two parts: client system and is the peer-to-peer approach. There are no
server system. dedicated servers.
One computer is designated as the server All computers are equal and can share their
and all the other computers connected into resources to be used by others and are therefore
the network are called the clients. known as peers.

c. A router is used when multiple devices need to connect to the Internet using the same IP. It
works on the network layer.
d. The
GPSshort formPositioning
(Global of Global Positioning
System) isSystem is GPS. It is anavigation
a satellite-based satellite-based navigation
system developedsystem
by
which is used
the U.S. to identify
Department of the geographical
Defense, using alocation
networkofofan24object. It is to
satellites made up of a the
determine network
of 24 satellites
location placed
of objects oninto orbit by the U.S. Department of Defense.
Earth.
e. Modem
A modem is aisdevice which
a device is used
that to transmit
enables data over a network.
data transmission It is attached
over networks to computers
by converting
that can convert digital signals (to be
digital signals to analog and vice versa. transmitted over telephone lines) to analog (continuous
electrical waves) and convert analog signals to digital signals at the receiving end.
f. HTTP
HTTPis enables
the primary
dataprotocol used
exchange to exchange
between data between
browsers a web while
and websites, browser and a is
HTTPS website.
its
Whereas HTTPS isusing
secure version, an extension of HTTP
encryption useddata
to protect for secure communication
and ensure integrity. over a network. It
establishes a secure connection by establishing an encrypting link between the browser and
server, hence maintaining data integrity by encrypting the data.
6. a.

LAN MAN

i. LAN stands for Local Area Network. i. MAN stands for Metropolitan Area Network.

ii. It is a digital communication system ii. Its major disadvantage is that if the root
that interconnects a larger number of node fails to operate, the entire network is
computers and other peripheral devices inoperable.
within a radius of less than 1 km.

2 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

 b.

Mesh Topology Tree Topology

i. In this topology, every single node in i. In this topology, nodes are connected as
a network is connected to all the other branches of a tree where the hub acts as a
nodes or computers in the network. root node. It is scalable as it is easier to add
new or remove the faulty nodes.
ii. There are minimal chances of network ii. Its major disadvantage is that if the root
failure in this topology due to redundant node fails to operate, the entire network is
connections. inoperable.

7. a. Ring topology would be the best choice for Riya.

b. (i) Internet
(ii) Campus Area network

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1. l oryh frglqj
2. seeyouonmonday
3. a. Acrtwtakfo h ett mes
b. B oetehns

2. Animation in Krita

uiz Bee
Page-32

1. Krita can used to create digital art, illustrations, and even 2D animations.
2. Onion Skins Docker

1. a. (iii) b. (iii) c. (ii) d. (iv)

2. a. Layers b. Frame c. keyframe d. Animation Timeline

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 3

3. a. Stage b. Animation c. GIFs, MP4s, and image sequences
4. a. A frame is a single image in the sequence that makes up your animation. Whereas a keyframe
is a special frame where a new symbol instance appears in the timeline.
b. The animation feature lets you make your drawings move, just like a cartoon! It’s a fun tool
that helps bring your creative ideas to life.
c. (i) Stage: The Stage refers to the main drawing area where you create and view your artwork
and animations. It’s the canvas where you draw your individual frames, layers, and scenes.
(ii) Onion Skins Docker: The Onion Skins Docker in Krita is a helpful tool for animators. It
allows you to see multiple frames at once by showing transparent versions of the previous
and next frames while you work on the current one.
5. a. Anita can adjust the animation speed in Krita in Animation Timeline Docker.
b. Blank frames are necessary in animation to show moments when the ball is off the ground
or out of sight, making the bounce look more natural and realistic.

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1. 95 2. None 3. Circle 4. They will meet after 2 hours.

Periodic Assessment 1
(Based on chapters 1 to 3)
1. a. (v) b. (iv) c. (iii) d. (ii) e. (i)
2.

Stage

Layer
Docker

Animation Onion Skins

Timline Docker Docker

3. a. Stage b. Animation
c. Animation Curve Editor d. File Tab

4 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

3. Dynamic Web Pages in Html5

uiz Bee
Page-43

src

1. a. (i) b. (iii) c. (ii) d. (ii) e. (ii)

2. a. Mocha b. prompt() c. text/javascript d. // e. client
3. a. F b. T c. T d. F e. T
4. a. Comments b. document.write() method
c. parseInt() d. prompt()
5. a. JavaScript is a client-side scripting language used for enhancing users’ interaction with the
web page by making web pages dynamic.
Some of its important features are:

• It is used in both client-side and server-side applications.

• It is platform-independent; hence, it runs on many operating systems.

• It is used with HTML code and runs on web browsers.
b. To include an external JavaScript file, we can use the script tag with the attribute src.
c. JavaScript keywords are the reserved words that have a special meaning for the JavaScript
interpreter. Some of the keywords are: car, switch, let, etc.
d. The prompt() method in JavaScript is used to take input from the user. We can use prompt()
method in the following ways:

var age = prompt("Enter your age: ");
6. a. Client-Side JavaScript refers to the implementation of JavaScript code that is executed within
the user’s web browser. Its primary function is to enhance the user interface and interactivity
of web pages by manipulating the Document Object Model (DOM), handling user events,
and facilitating asynchronous communication with the server.
Server-Side JavaScript, conversely, denotes the execution of JavaScript code on a web
server. This paradigm is employed for developing the backend logic of web applications,
encompassing tasks such as handling HTTP requests, processing data, interacting with
databases, and generating dynamic server-rendered content.

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 5

 b. Internal JavaScript involves embedding JavaScript code directly within the <script> tags of
an HTML document. This method is suitable for small, page-specific scripts.
External JavaScript, in contrast, entails writing JavaScript code in separate files (with a .js
extension) and linking these files to HTML documents using the src attribute within <script>
tags. This approach promotes code reusability, improves the organization of web development
projects, and facilitates better maintainability.
7. a. She should use the var keyword to declare a variable.
b. He should use the alert() function to display the message:

alert(“Registration successful, Ankit!”);

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1. (d) 2. (b) 3. (c)

4. Latest IT Trends

uiz Bee
Page-53

B2C (Business-to-Consumer)

1. a. (iii) b. (ii) c. (ii) d. (ii) e. (iii)

2. a. Internet b. Augmented Reality c. Virtual reality
d. Robotic Process Automation e. E-banking
3. a. T b. T c. F d. T e. F
4. a. E-Shopping b. Shakey c. Natural Language Processing
d. Pattern Recognition e. Intelligent Apps
5. a. E-commerce refers to the buying, selling and exchanging goods online. Some of the
applications of E-commerce are e-shopping, e-banking, etc.
b. (i) Electronic Data Interchange (EDI) is a system for accepting payments for online transactions.
(ii) Consumer-to-consumer (C2C) is a business model where consumers buy and sell products
or services directly to each other. C2C transactions can take place online or in person.

6 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

 c. The Internet of Things (IoT) refers to a network of physical objects, or things, embedded with
sensors, software, and connectivity, allowing them to collect and exchange data with other
devices and systems over the internet without human intervention.
d. The purpose of m-commerce (mobile commerce) is to enable the buying and selling of goods
and services through mobile devices, offering businesses the ability to reach customers and
conduct transactions anywhere, anytime, while providing consumers with convenient and
flexible shopping experiences.
e. Augmented Reality is the blending of virtual world and real life where as in Virtual Reality,
we create a virtual world that user can interact with.
6. a. He can use E-banking.
b. Yes, Lata can use M-commerce by using mobile apps such as MakeMyTrip, Google Pay, or
airline apps to book the ticket using her smartphone.

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1. (b) 2. (c)

5. Cloud Computing

1. a. (ii) b. (ii) c. (iv) d. (ii) e. (ii)

2. a. T b. T c. F d. F e. F
3. a. demand b. cloud computing c. SkyDrive
d. public cloud e. community cloud
4. a. Cloud Storage b. Four c. Hybrid Cloud d. Apple e. OneDrive
5. a. Three benefits of cloud computing are:
(i) Easy Accessibility: Cloud services are available and accessible globally to everyone who
has a computer or any device with an Internet connection. No specialised hardware or
software is required.
(ii) Cost Effective: One has to pay minimal to no subscription charges to avail the services. It
saves us from buying expensive specialised hardware or software.
(iii) Flexibility: The services provided by cloud computing are available 24 hours a day and
seven days a week, and can also allow us to increase and decrease computing needs,
hence, providing users with the flexibility to work as per their requirements.

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 7

 b. Cloud computing can be divided into two parts: front end and the back end. The Internet
is the link that joins both these ends. The front end includes the users/clients who access
the data via the Internet, while the back end consists of the cloud computing infrastructure
maintained by the cloud service provider.
The front end includes computers, user interfaces, and all the means required to access the
cloud servers. The back end includes various applications and the dedicated servers for each
program. This gap between the client and the cloud is then bridged by the Internet.
c. We need to follow the given steps to share a file with others on OneDrive:
1 Select the file that you want to share.
2 Click on the Share button.
3 Enter the email address of the people with whom you want to share your file.
4 Choose the level of access.
5 Click on the Send button.
d. To upload files or folder on OneDrive, follow the given steps:
1 Click on the Add new button.
2 Select the Files upload or Folder upload option.
3 Navigate the location where the file or folder is stored.
4 Select the file or folder which you want to upload.4.4.
5 Click on the Open button.
e. (i) Public cloud: A public cloud is owned by a third-party service provider (any organisation)
whose services are easily accessible to the general public. The organisation sells its services
to the general public and other organisations. To ensure that no resources provided by
them are wasted, the users are supposed to pay for what they use.
(ii) Private cloud: A private cloud is owned by a single company and allows its services to be
accessed only within the company’s firewall. It is not meant for the general public. This
is best suited for companies with dynamic computing needs where they can maintain
control over the cloud environment.
(iii) Front end: The front end includes the users/clients who access the data via the Internet.
The front end includes computers, user interfaces, and all the means required to access
the cloud servers.
(iv) Back end: Back end consists of the cloud computing infrastructure maintained by the
cloud service provider. The back end includes various applications and the dedicated
servers for each program. This gap between the client and the cloud is then bridged by
the Internet.
6. a. The Internet
b. Ravi must select the folder, click Share, enter classmates’ email addresses, choose access
rights, and click Send.

8 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

 COding Zone
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1. c 2. 13.04% 3. 4

Periodic Assessment 2
(Based on chapters 3 to 5)
1. a. If a company buys or sells products or services to other companies online through a sales
portal, it is known as the business-to-business model of e-commerce.
b. Electronic Fund Transfer (EFT) is a technology that allows the transfer of funds online from
one bank account to another.
c. It is a system of connected computing devices, mechanical and digital machines that create
a virtual network where a monitoring centre ensures that everything is working smoothly.
2. a. Public Cloud b. Private Cloud c. Community Cloud
3. (i) Missing <HEAD> tag before <TITLE>
(ii) <BODY> and <HEAD> are wrongly placed
(iii) Using SRC in <SCRIPT> with content inside

Test Sheet 1
(Based on chapters 1 to 5)
1. a. (i) b. (iii) c. (iv) d. (ii)
e. (iii) f. (iv) g. (ii)
2. a. communication channel b. Personal c. keyframe
d. Animation timeline docker e. Augmented Reality
f. LAN (Local Area Network)
3. a. T b. F c. F
d. F e. T f. F
4. a. A network is a collection of computers and their peripheral devices (the network’s components)
connected by communication links (wired or wireless) through which data is transferred in
the form of signals.
b. Networking is a way of getting all the devices to communicate with each other and use the
same data files and resources through a physical pathway called the transmission medium.
This connection between devices can be either wired or wireless.
c. Two components of Krita are:
(i) Layers Docker (ii) Animation Timeline Docker
d. Animation Timline panel is used to set keyframes, play your animation to preview it, and
manage multiple layers for different parts of your scene, like characters and backgrounds.

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 9

 e. Two features of JavaScript are:
(i) It is used in both client-side and server-side applications.
(ii) It is platform independent; hence, it runs on many operating systems.
f. E-commerce refers to the buying, selling and exchanging of goods, services or information
over the Internet.
g. Cloud computing works through two main parts: the front end users accessing data via the
Internet and the back end cloud servers and applications managed by service providers.
5. a. Data: Data refers to raw facts and figures that are unprocessed and have no meaning by
themselves. It can include numbers, characters, symbols, or images. For example, marks
obtained by students in a test before calculation are data.
Information: Information is processed or organised data that is meaningful and useful. It is
obtained after analysing or interpreting data. For example, the average marks of students
calculated from raw test scores is information.
Multimedia: Multimedia is a combination of different types of content such as text, audio,
images, animation, and video used together to present information in an interactive and
engaging way. It is widely used in education, entertainment, and communication.
b. Frame: A frame is a single image in the sequence that makes up your animation.
Keyframe: A keyframe is a special frame where a new symbol instance appears in the timeline.
c. Animation in Krita creates the illusion of movement by displaying a sequence of still images
rapidly. It allows artists to make their drawings move frame by frame, like in a cartoon, and
helps bring creative ideas to life.
d. To upload files or folder on OneDrive, follow the given steps:
1 Click on the Add new button.

2 Select the Files upload or Folder upload option.

3 Navigate the location where the file or folder is stored.

4 Select the file or folder which you want to upload.4.4.

5 Click on the Open button.

e. The syntax for using external JavaScript is:

<HEAD>
<SCRIPT TYPE=”text/javascript” SRC=”D:\first.js”>
</SCRIPT>
</HEAD>
f. Business-to-Business (B2B): If a company buys or sells products or services to other
companies online through a sales portal, it is known as the business-to-business model
of e-commerce.
Consumer-to-Consumer (C2C): There are various websites that allow buying and selling
between the consumers. They offer online auctions where one can buy and sell products.

10 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

6. Algorithmic Intelligence

uiz Bee
Page-85

It’s a holiday
Entry not allowed

uiz Bee
Page-87

1. b. 2. a. c. b. d. b.

1. a. (ii) b. (iii) c. (iii) d. (i)

2. a. condition b. if c. else d. conditional
3. a. Loops help us automate repetitive tasks and make the code more efficient by avoiding the
need to write the same instructions multiple times.
b. 1 Start
2 Ask the user: “What day is today?” → Store the answer in today

3 Ask the user: “Is there a cricket match today? (yes or no)” → Store the answer in match

4 If today is “Sunday” and match is “yes”, then

a. Display “We have a match on Sunday”

5 Else

a. Display “No, match on Sunday”

6 Stop

c. 1 Start
2 Ask the user: “What day is today?” → Store the answer in today

3 If today is not “Saturday” and today is not “Sunday”, then

a. Display “Exam today”

4 Else

a. Display “No exam on weekend”

5 Stop

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 11

4. a.
Num1 4 7 87 45 22
Num2 7 5 34 32 90
num2 is num1 is num1 is num1 is num2 is
Print
greater greater greater greater greater

b. Marks 45 40 55 49 85
Result Fail Fail Pass Fail Pass

c. start ✗ ✓
✗ ✓
✗ ✓
✗ ✓
✗ ✓

d. 8 8 8 8 8 start

5. a. start

b. start ✗
✗
✗
✗
✗
✗
6. a. A loop – specifically a counting loop to reduce repetition in code.
b. IF year MOD 4 = 0 AND year MOD 100 = 0 THEN
PRINT "Yes"
ELSE
PRINT "No"

12 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

7. Control Structures in Python

1. a. (iii) b. (ii) c. (i) d. (iii) e. (iii)

2. a. if b. else c. for d. elif e. continue
3. a. while loop b. Nested if c. elif d. Control structure
4. a. A control structure is a programming construct which affects the flow of the execution of a
program. Various types of control structures provided by Python are:

• Sequential Statements

• Selection Statements

• Iterative Statements
b. The if statement is a decision-making statement that is used to control the flow of execution
of statements. It contains a conditional expression using which data is compared. A decision
is made based on the result of the comparison. If the result of the expression is true, the
statements within the if block are executed and if the result of the expression is false, the
statements within the if block are not executed.
Whereas the if-else statement is used to evaluate whether a given statement is true or false.
If the given condition is true, the if block is executed. If the given condition is false, the else
block is executed.
c. The continue statement causes the program to skip the rest of the statement of the current
block and move to the next iteration of the loop. It immediately transfers control to the
evaluation of the test expression of the loop for the next iteration of the loop.
On the other hand the break statement is used in the for and while loops to terminate the
loop and completely transfer the control from the loop to the next statement after the body
of the loop.
d. The syntax of for loop is as follows:

for <counter variable> in range(start, stop, step_size):
statements
The syntax of while loop is as follows:

while(condition):
statement(s)
increment/decrement

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 13

 e. These statements are used to jump out of the loop iterations even if the condition has not
become false. They alter the flow of control unconditionally. The jump statements defined
in Python are break and continue.
5. a. y is greater than or equal to x
b. The sum of the first 10 natural numbers is: 55
c. 10
8
6
4
2
d. Factorial of 7 is 5040
6. a. She should use the continue statement.
b. She should use the if-elif-else statement.

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1. (i) = should be == (comparison operator)

(ii) print statement needs indentation
2. (i) => is incorrect; it should be >= (greater than or equal)
(ii) Missing colon : after else
(iii) print statements need indentation

8. Functions, String and List in Python

uiz Bee
Page-116

1. A string is a sequence of characters enclosed in single, double, or triple quotes in Python.

2. Escape sequences are special characters used in strings to represent actions like new lines (\n)
or tabs (\t).

14 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

1. a. (ii) b. (iv) c. (ii) d. (ii) e. (iii)
2. a. append b. function c. lower d. string e. length
3. a. T b. F c. T d. F e. F
4. a. Traversing b. Square brackets [ ] c. Arguments
d. commas(,) e. extend( )
5. a. A function can be defined as a block of reusable code that performs a specific task. This
concept is the foundation upon which the procedural programming concept operates. In
Python, a function's key components are the def keyword, function name, parameters, a
colon, indented code block (function body).
b. The main difference between these two categories is that built-in functions do not require
to be written by us whereas a user-defined function has to be developed by the user at the
time of writing a program.
c. An escape sequence is a sequence of characters that does not represent itself when used
inside a character or string. It is typically used to specify actions such as carriage returns
and tab movements. The backslash (\) is a special character and is also known as the escape
character in Python. It is used to represent white space characters, for example, '\t' for tab,
'\n' for new line, and '\r' is for carriage return.
d. The Python return statement marks the end of a function and specifies the value or values
to pass back from the function. Return statements can return data of any type, including
integers, floats, strings, lists, dictionaries, and even other functions.
e. upper(): The upper() function converts all lowercase letters to uppercase. Syntax of using
upper() function is: string_name.upper().
capitalize(): The capitalize() function returns a string with the first character in capital. Syntax
of using capitalize() function is: string_name.capitalize().
6. a. Hello, World! b. 8 c. python
d. [1, 2, 3, 4] e. Hello f. 6
7. a. Function to add missed list items: append() or extend().
b. Mira can use: capitalize().
c. Aadya can use: + operator to concatenate strings.

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1. a. def greet():
print("Hello")
greet()
Output: Hello

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 15

 b. def add(a, b):
return a + b
print(add(2, 3))
Output: 5
c. s = "Hello"
print(s)
Output: Hello
d. lst = [1, 2, 3]
lst.append(4)
print(lst)
Output: [1, 2, 3, 4]
e. def subtract(a, b):
return a - b
print(subtract(5, 3))
Output: 2

Periodic Assessment 3
(Based on chapters 6 to 8)
1. a. Hello Trackpad
Hello Trackpad
Hello Trackpad
Hello Trackpad
Hello Trackpad
Hello Trackpad
b. 0
1
2
3.
2. for num in range(1, 26):
if num % 2 != 0:
continue
print(num)
3. a. The len() function calculates and returns the length of a string supplied as an argument.
b. The append() function inserts the object passed to it at the end of the list.
c. The capitalize() function returns a string with the first character in capital.
d. We use the del statement to remove an element or a slice of element from a list.

16 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

9. Artificial Intelligence and its Domain

uiz Bee
Page-134

(i) Data
(ii) Computer Vision
(iii) Natural Language Processing

1. a. (ii) b. (ii) c. (iii) d. (iii) e. (iii)

2. a. F b. T c. F d. F e. T
3. a. Narrow AI b. Data analysis c. Images
d. Elementary e. Exploring spaces
4. a. Narrow AI b. Computer Vision c. Data d. General AI
5. a. It is a widely known fact that the capabilities of the human mind vary from time to time,
situation to situation, their surroundings, and physical and mental exertion. Whereas, Al, on the
other hand, has no such limitation and can function efficiently even under harsh conditions.
Similarly, Al also has some other advantages over human intelligence like process automation,
quick decision making and accuracy.
b. The starting point of every application is data, which is also the foundation of artificial
intelligence. Data is all around us, be it a google search, a passport scan or an online shopping
history, all of this contains data that is collected, analysed, and monetised. Data is not just
collected but also properly formatted and aligned with the project requirements.
c. Machine learning enables a computer to understand the context of visual data by using
algorithmic models. To achieve this, enough data needs to be fed through the model so that
the computer can teach itself to recognise images.
Convolutional Neural Network (CNN) helps a machine learning model to process the image
by breaking it down into pixels. It then transforms it into digital data by applying algorithms
before comparing the captured images with those stored in the database. These systems
are used to identify an individual based on their facial features like the spacing of their eyes,
ears, chin, etc.
d. AI technology can make mistakes, like giving wrong answers or showing bias. For example, a
robot using AI might not recognise people of all skin tones equally. Also, AI can reduce jobs
if machines replace human workers.

Trackpad Pro (Ver. 5.1)-VIII (Answer Key) 17

6. a. Benefits: Fast diagnosis, reduced human error, 24×7 availability.
Challenges: High setup cost, reliance on data quality, lack of emotional understanding.
b. NLP enhancing real-world experiences:
Example: Chatbots for 24×7 customer support
Benefit: Saves human time, gives instant responses, improves user satisfaction

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1. 30 36 36

55 58 9

17 30 169

2. 354

10. Fields of Artificial Intelligence

uiz Bee
Page-142

AI helps banks and financial sectors in various ways. AI predicts future scenarios by analysing past
user experiences. This enables banks to predict future outcomes and trends. It also helps banks
identify fraud and detect anti-money laundering patterns.

1. a. (ii) b. (iii) c. (iii) d. (iii) e. (ii)

2. a. F b. F c. T d. F
3. a. Monitoring b. Interactive c. Smart Cities
d. Voice e. Information
4. a. Fyle b. E-commerce c. Alexa d. Socratic e. Amazon
5. a. AI in e-commerce helps in interactive and personalized buying experience. With the AI-enabled
systems, companies can see their customer’s preferences and can boost their sales by reliable
and customized shopping experiences. AI helps in the real-time database analysis to predict

18 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

 the number of customers willing to buy a new product, and it also helps in running a cashier
less store.
b. Four benefits of Smart Homes are:
Power Saver: Smart Homes are great at saving power. Often it is found that people are lazy
in turning off lights, which increases the consumption of power and water. These types of
homes allow their users to turn off the lights and electronic gadgets even when they are off
to bed.
Increased Energy Efficiency: Smart Home technology makes it possible to make the home
energy-efficient. The control of heating and cooling of the home with a programmable
thermostat learns the user’s preferences and then suggests the best energy efficient settings
throughout the day. Even the lights could be programmed to automatically switch to an
evening mode as the sun sets or automatically turn off when no one is at home.
Protect the Home and Its Belongings: The home is protected from intruders with AI systems.
Once they are configured, the door/window and motion sensors notify the owner when
someone tries to break in their house, when no one is at home. There are wireless doorbells
and intelligent locks that provide an additional level of security to live with mental peace.
Interactive Home: The AI enabled appliances are controlled through voice or smart phones.
Some appliances even support gestures by sensing the motion like hand gestures or tap
recognition like a knock.
c. Some challenges in developing smart cities include high costs, lack of proper planning, poor
internet connection, and data privacy issues. It’s also hard to train people and upgrade old
systems to work with new smart technology.
d. A smart camera is more effective for home security because it covers more areas and records
all activity. A video doorbell is helpful too, but it mostly shows who is at the door, not the
whole house.
6. a. Nimi's father is talking about Alexa.
b. Smart thermostat.

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11. Introduction to SDGs and Data Science

uiz Bee
Page-160

Unstructured Data

1. a. (iv) b. (ii) c. (ii) d. (iii) e. (iii)

2. a. T b. F c. T d. F e. T
3. a. Big data b. Organised, Formatted c. Data
d. Hadoop e. Components
4. a. Structured Query Language (SQL)
b. Python
c. Tableau
d. Unstructured Data
5. a. AI can help in reaching out the goal by tracking food wastage, finding ways to grow yields,
identifying diseases and pest outbreaks, analysing means to reduce population, etc.
b. Some of the key challenges to sustainable development are given below:

• There is instability and conflict between the nations.

• There is lack of proper planning and implementation of programmes to fit the local level.

• Non-profit organisations may lack skilled resources such as data scientists and NLP engines.

• Human bias may be embedded in AI models or datasets.

• Sensitive data needs to be protected from being made public.
c. AI in education can be used to achieve quality education goals by developing smart content,
providing personalized guidance, round the clock assistance, virtual learning environment
and creating more secured online exams.
d. A data scientist is someone who uses data sets to create a hypothesis and then works on the
data set to analyse the data, interprets it and makes sense of it. A data scientist is responsible
for dealing with all types of data. He/she uses various tools and practises to recognise patterns
within the data.

20 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

6. a. To improve healthcare in remote regions, I would:

• Use AI diagnostic tools (like smart apps or scanners) to assist with disease detection.

• Implement wearable devices for real-time patient monitoring.

• Use AI-based learning platforms to train local health workers.

• Set up AI chatbots and telemedicine platforms to provide remote consultations.
b. To enhance AI for customer service:

• Collect and clean real customer interaction data.

• Use data labelling for training NLP and vision models.

• Apply machine learning to build and improve models.

• Monitor and reduce data bias for fair results.

• Use user feedback to retrain and improve AI performance.

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d. 2 e. 354

Periodic Assessment 4
(Based on chapters 9 to 11)
1. a. ROBOTICS
b. ARTIFICIAL INTELLIGENCE
c. CINEMAS VISION
d. LOGISTICS PLANNING
e. ALAN TURING
2. a. SDG 05: Gender Equality: For sustainable development, it's necessary that we end all forms of
discrimination against women. This is a basic human right. We need to provide equal access
to resources, opportunities, power and property to women in the world. AI powered apps
can be used by employers to use gender sensitive language for their recruitment-drive. AI
can analyse a huge amount of data to find the area where more gender specific issues exist.
b. SDG 02: Zero Hunger: This goal aims to end hunger issues by 2030 and ensure access to
nutritious food for all children. AI can help in reaching out to the goal by tracking food waste,
finding ways to grow yields, identifying diseases and pest outbreaks, analysing means to
reduce population, etc.

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 c. SDG 15: Life on Land: This aims at protecting, restoring and promoting the sustainable use of
terrestrial ecosystems, managing forests, fighting deforestation, reversing land degradation
and stopping biodiversity loss. In future, AI methods may be used to create a digital dashboard
for the planet, to help us monitor, model, foresee and manage environmental systems on a
global scale.
d. SDG 16: Peace, Justice and Strong Institutions: This aims to guarantee justice and freedom for
all people by 2030. The target is to significantly reduce all forms of violence with communities
and governments to end conflict and insecurity.
3. a. General AI systems are intelligent systems designed to perform any intellectual task that a
human can do, unlike narrow AI which is programmed for specific tasks.
b. E-commerce uses the Machine Learning domain of AI to analyse customer behaviour,
recommend products, and optimize pricing strategies, while traffic pattern predictions are
typically part of navigation or transportation applications.

Test Sheet 2
(Based on chapters 6 to 11)
1. a. (iii) b. (i) c. (iii) d. (iii)
e. (i) f. (ii) g. (i)
2. a. control structure b. sequential
c. Functions d. lower()
e. Computer Vision f. Natural Language Processing (NLP)
g. home automation
3. a. F b. T c. F d. F
e. T f. T
4. a. Sometimes, we need to evaluate multiple statements to get a certain result. In such scenarios,
we can use the if-elif-else statements to evaluate multiple scenarios.
b. A control structure is a programming construct that affects the flow of the execution of a
program. Various types of control structures provided by Python are:

• Sequential Statements

• Selection Statements

• Iterative Statements
c. A function can be defined as a block of reusable code that performs a specific task. This
concept is the central aspect on which the concept of procedural programming works.
d. A list is a type of container that is used to store a list of values of any type. One can store an
integer, string as well as objects in a single list.

22 Trackpad Pro (Ver. 5.1)-VIII (Answer Key)

 e. Convolutional Neural Network (CNN) helps a machine learning model to process the image
by breaking it down to pixels. It then transforms it into digital data by applying algorithms
before comparing the captured images with those stored in the database.
f. AI is extensively used in social media platforms to serve personalised content. These sites
monitor the way you use the features that they provide and record the way you use them.
This data is used to create ads that are customised according to your preferences.
g. AI can help in reaching out to the goal by tracking food waste, finding ways to grow yields,
identifying diseases and pest outbreaks, analysing means to reduce population, etc.
5. a. These statements are used to jump out of the loop iterations even if the condition has not
become false. They alter the flow of control unconditionally. The jump statements defined
in Python are break and continue.
THE break STATEMENT
The break statement is used for exiting the program control out of the loop. The break
statement stops the execution of the loop and program flow continues to the statement
after the loop. It is mostly used when we need to exit a loop prematurely before the loop
condition becomes false.
THE continue STATEMENT
The continue statement causes the program to skip the rest of the statement of the current
block and move to the next iteration of the loop. It immediately transfers control to the
evaluation of the test expression of the loop for the next iteration of the loop.
b. A function can be called anytime from other functions or from the command prompt after the
definition. For calling a function, we type the function and pass the parameters. For example:
To call a function:

def my_function()
print (“Hello”)
my_function()
c. The starting point of every application is data and it is the foundation of Artificial Intelligence.
Data is all around us, be it a google search, a passport scan or an online shopping history,
all of this contains data that is collected, analysed, and monetised. Data is not just collected
but also properly formatted and aligned with the project requirements.
Some examples of AI applications based on data are as follows:

• Weather prediction models using AI need data such as temperature, humidity and all
underlying patterns that impact weather.

• AI is used in the prediction of upcoming customer orders for the next season. This enables
retailers to plan the inventory and purchases which helps them predict and control the
cost.

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 d. AI has lots of benefits, but it is not void of mistakes or errors. Let us understand the risks and
limitations of this technology as well.

• High cost of creation: AI is both an emerging field and a new technology. Hence, it is
difficult to find people who can work on this technology.
• Making humans lazy: The automated applications that perform the majority of work are

making humans lazy. This might lead to an addiction to convenience in future generations.

• Unemployment: Majority of repetitive tasks are being replaced by robots, causing
organisations to replace less qualified employees with AI robots to do similar tasks.

• No emotions: Decisions made by humans are heavily dependent on emotions. AI on the
other hand, does not have any emotions yet, so it lacks human connect and may not always
be effective.

• No out-of-box thinking: Machines may have the ability to learn and get better than humans
with tasks if coded and designed to do so, but when encountered with new situations which
they are not programmed for, they tend to crash or give unusual outputs.
e. Data science is a field that studies data and the ways it can be transformed into valuable input
and resources to create business and IT strategies. This is a science that combines domain
expertise, programming skills and knowledge of mathematics to extract insights from the
large and ever-increasing volumes of data collected by organisations.

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