WorksheetsInternet 101 (Grade 7)
Total questions: 50
Worksheet time: 17mins
What is the Internet?
A single computer that stores all websites
A private network limited to one building
A global wide area network that connects computer systems across the world
A program used to browse web pages
What kind of information or data does the internet send?
Analog audio waves
Binary information
Printed documents
Handwritten notes
Define the term BITS.
Any pair of opposites
A complete song file
A group of eight characters
A type of network cable
What is 8 bits strung together called?
Nibble
Packet
Byte
Frame
How many megabytes is a typical MP3 file?
Less than 1 MB
About 3–4 MB
About 20–30 MB
Over 100 MB
What are the three physical media used to send bits across the internet?
Electricity
Light
Radio waves
Sound waves
Water waves
What is bandwidth?
The physical width of a cable
The maximum transmission capacity of a device, measured by bitrate
The number of devices on a network
The distance data can travel without error
What is bitrate?
The number of bits per second a system can transmit
The number of websites visited per minute
The size of a video file in megabytes
The frequency of a radio station
What is Ethernet?
A wireless technology for phones
A protocol used to transfer data over the internet traditionally using an electrical medium across a copper wire
A type of optical fiber
A web browser
What is a faster physical medium than copper wire, and why?
Coaxial cable, because it is cheaper
Fiber optic cable, because it uses light to transmit data and can send multiple signals simultaneously
Satellite dish, because it is larger
Plastic wire, because it bends easily
How is information sent wirelessly?
Through underwater cables
By laser beams only
By radio signals that translate 1s and 0s into different radio wave frequencies
By smoke signals
What does IP stand for and what is its purpose on the Internet?
Internal Protocol; secures messages between browsers and servers
Internet Protocol; provides unique numerical addresses to identify devices on a network
Interconnected Pathway; speeds up web page loading
Integrated Program; translates webpages into readable text
What does ISP stand for?
Internet Service Provider
Internal Server Protocol
International Site Platform
Interactive Services Program
What does the ISP do?
Sets web design standards for companies
Provides customers with Internet access and connects them to other networks and devices
Creates domain names for all websites
Builds hardware for home computers
What is a Protocol?
A physical device that routes traffic
A well known set of rules and standards used to communicate between machines
A type of malware that steals data
A private list of passwords for a network
How long was a typical IPv4 address in bits?
16 bits
32 bits
64 bits
128 bits
How long is a current IPv6 address in bits?
32 bits
64 bits
96 bits
128 bits
What does DNS stand for?
Domain Name System
Digital Network Service
Distributed Node Server
Dynamic Naming Setup
What is the purpose of the DNS?
To encrypt all Internet traffic
To associate names like www.example.com with corresponding IP addresses
To assign MAC addresses to network cards
To speed up video streaming
Identify and explain an example of a DNS cyber-attack.
DNS spoofing: altering DNS records to redirect users to an imposter website with a wrong IP address
Brute force: repeatedly guessing passwords to log in to a server
Phishing: sending emails that ask for personal information
DDoS: overwhelming a server with traffic to take it offline
Would the Internet run out of Domain Names? Yes or No
Yes
No
Would the Internet run out of Domain Names? Yes or No
Yes
No
Explain how an information packet travels over the internet.
It follows a single direct path from sender to receiver.
It weaves through different routes depending on traffic and network conditions.
It can travel only through satellite links.
It uses a fixed path chosen before transmission and never changes.
Explain what happens to an information packet when you send more complex data.
The data is sent as one large packet to avoid delays.
The data is broken into smaller packets that may take different routes and are reassembled at the destination.
Packets are duplicated so multiple copies arrive and one is chosen.
The sender waits until the network is idle, then sends all data in order over a single path.
How do information packets know where to go?
They contain two IP addresses indicating the source and the destination.
They include GPS coordinates for routing.
They rely only on MAC addresses inside a local network.
They follow the port number of the application to find the destination across the internet.
Define the computing term router.
A device that stores files for users to download.
A device that manages and forwards network traffic to keep packets moving smoothly across networks.
A program that encrypts data on a computer.
A cable used to connect two computers directly.
What does TCP stand for and what is its role?
Transfer Control Package; it speeds up graphics rendering.
Transmission Control Protocol; it manages the sending and receiving of data and checks that all packets are received.
Transport Communication Practice; it secures Wi‑Fi passwords.
Total Connection Protocol; it assigns IP addresses to devices.
Explain the meaning of the URL term?
Uniform Resource Locator
Unique Resource Link
Universal Routing List
User Reference Label
What does HTTP stand for?
Hypertext Transfer Protocol
High Transfer Text Protocol
Hyperlink Transmission Program
Host Transport Process
Explain the role of HTTP when you type a web address in your browser.
The HTTP sends a GET request to the server (host) for the page you've requested
The HTTP opens a direct cable connection between your computer and the website
The HTTP compiles the website’s code on your computer before loading
The HTTP only encrypts files stored on your hard drive
What is HTML and what does the acronym stand for?
HTML is the code that controls the look of pages on the Internet; HyperText Markup Language
HTML is a device driver for printers; Hardware Text Machine Language
HTML is a program for drawing images; High-Tech Media Lab
HTML is a network protocol; Host Transfer Markup Link
Would a lot of images on a webpage affect download speed? Explain why?
Yes. The page loads slower as each image needs to be requested and loads one at a time
Yes. The page loads faster because images are smaller than text
No. The number of images never affects speed
Only on mobile devices; desktop speeds are unaffected
What are web COOKIES?
ID cards sent from a website and stored on the user's computer by the user's web browser so the next time you visit that site it will know who you are and load correct pages
A type of virus that deletes files from your computer when you visit a website
Small images downloaded to make pages load faster
Temporary passwords that expire every hour
What is SSL and TLS?
A layer of security that provides secure channel for your online communications and protects you from hackers
An image compression method for faster loading
A search engine optimization technique
A hardware driver for network cards
How do we identify that the website is using SSL and TLS security?
By seeing the "s" at the end of https:// in the browser window
By seeing the website address end with .ssl
By the browser window turning blue
By the page displaying more images than text
What is the role of encryption in relation to online communication?
It scrambles a message to hide it from unwanted receivers.
It speeds up internet downloads.
It translates messages into different languages automatically.
It deletes old messages to save space.
What does decryption stand for?
Unscrambling a message to make it readable
Creating a new encryption key
Blocking a sender from contacting you
Compressing a file to reduce its size
In the context of message encryption, what does the term key stand for?
A secret password used for unlocking a message
A public web address for a site
A numeric code for compressing files
A shortcut for typing special characters
What is symmetric encryption?
When a sender and a receiver share the same key used to encrypt and decrypt a message
When two different keys are used and one is public
When no keys are used and messages are plain text
When keys are changed after every message automatically by the browser
What are asymmetric encryption keys?
A system that uses different keys for encrypting and decrypting messages (public and private keys)
A single password shared between all users
A list of possible passwords stored in the browser
A method for compressing images on a website
How can you identify that a website is using security protocols?
A lock icon or https:// appears in the browser’s address bar
The page background turns blue
The site loads without images
The browser asks to clear cookies
How would you define cybercrime?
Exploiting vulnerabilities in hardware and software to steal, compromise information, or hack and hijack equipment
Building secure software to prevent any unauthorized access
Legal investigation of computer misuse by authorities
Backing up files to cloud storage for safety
List three cybercrime areas you can fall victim to? Select all that apply.
Software viruses
Distributed Denial of Service attacks (DDoS)
Phishing scams
Hardware upgrades
Define a computer virus?
A program that installs—often unintentionally—harms the user and the computer, and can spread to other computers
A tool used to scan a computer for malware and remove it
An operating system feature that keeps device drivers updated
A password manager used to store credentials securely
How can a virus damage or affect the data on your computer? Select all that apply.
Steal data
Delete data
Control programs
Allow for remote control of the computer
Explain the DDoS (Distributed Denial of Service) attack.
Overwhelming a website with massive numbers of requests from a botnet so it shuts down
Physically damaging a server with a strong magnet to corrupt data
Encrypting files on a device and demanding payment to unlock them
Sending a single targeted email to one employee to steal credentials
Explain the concept of a Phishing scam.
Sending large amounts of deceptive emails that appear trustworthy to trick people into giving login details on a fake site
Secretly monitoring network packets to improve performance
A government warning that lists unsafe websites for the public
Legitimate software that filters spam and malware automatically
What is the major cause of systems getting hacked?
A simple human mistake rather than a security bug
The Earth’s magnetic field interfering with electronics
Perfectly written software that never needs updates
Solar power outages affecting data centers
List four steps we all must take to avoid getting hacked. Select all that apply.
Use strong passwords
Check for authentic web addresses
Install systems security updates often
Don’t install software you don’t trust
Reuse the same password across all sites
What is the main function of a router in a computer network?
To store website data for faster access
To encrypt all outgoing messages
To assign IP addresses to devices automatically
To connect different networks and direct data packets to their destination
