Ch23 : The INTERNET and the World Wide Web

Multiple Choice

What are the key components of the World Wide Web (WWW)?

• Web server URLs

• ISP

• HTTP

• All of the above

Multiple Choice

What is the internet?

• A group of computers and servers that are connected to each other.

• addressing system computers use to find each other.

• space satellites pointing at each other

• We are the internet.

Multiple Choice

Why is the Internet described as a “network of networks”?

• A. Because it is controlled by one main computer

• B. Because it connects many smaller networks together

• C. Because it only works inside one country

• D. Because it stores all data in one place

Multiple Choice

What is the purpose of DNS?

• It assigns a unique address to every device on the Internet.
• It returns the IP address given the name of a website.
• It forwards a message from one machine to another.
• It has more bits so you can make a longer, unique address.

Multiple Choice

Why are domain names used instead of IP addresses?

• A. They make Internet connections faster

• B. They are required by all websites

• C. They are easier for people to remember

• D. They prevent unauthorized access

Multiple Choice

What happens when a domain name is used to access a website?

• The website is downloaded to the user’s computer

• The domain name is converted into the correct IP address by DNS

• The domain name becomes part of the browser software

• The Internet connection is encrypted automatically

Multiple Choice

What is the term for the service that translates URLs to IP addresses?

• Internet

• DNS

• Server

• Wi-Fi

Multiple Choice

What happens if the domain name is not in the server's database?

• The client contacts the host

• The server returns the IP address

• It contacts another server

• The user is notified

Multiple Choice

__________ architecture uses a limited set of internet holding servers known as the “root” domain servers, which now house “.com”, “.org”, “.gov”, and so on.

• Hosting

• IPv6 address

• Domain name service

• MAC address

Multiple Choice

What does the process of “resolving a domain name” mean?

• Encrypting data sent over the Internet

• Connecting a computer directly to a website server

• Looking up a domain name to find its IP address

• Assigning a new domain name to a website

Multiple Choice

What is the main role of an Internet Service Provider (ISP)?

• To translate domain names into IP addresses

• To forward data packets between networks

• To provide customers with a connection to the Internet

• To store websites on DNS servers

Multiple Choice

What is the main function of a router?

• To store domain names and IP addresses

• To forward packets of data between different networks

• To provide Internet access to customers

• To translate domain names into IP addresses

Multiple Choice

Why does every device connected to the Internet need a unique IP address?

• To identify the country where the device is located

• To allow data to be sent to and from the correct device

• To increase Internet speed

• To store routing tables

Multiple Choice

Which statement about IPv4 and IPv6 is correct?

• IPv4 and IPv6 are different names for the same protocol

• IPv6 was created to replace IPv4 and provide more IP addresses

• IPv4 provides more addresses than IPv6

• IPv6 is only used on private networks

Multiple Choice

What is the main difference between TCP and IP in the TCP/IP protocol stack?

• TCP provides device addressing, while IP controls encryption

• TCP ensures reliable data transmission, while IP handles addressing and routing

• TCP is only used on local networks, while IP is used on the Internet

• TCP translates domain names into IP addresses

Multiple Choice

Consider a search for the packet with destination address 001 and source address 001. Use backtracking to figure out which rule would be selected from this Trie.

• R4

• R3

• R6

• R7

Multiple Choice

What is the first step when a computer sends data over the Internet?

• The data is encrypted

• The data is split into packets

• The data is sent directly to the destination computer

• The router stores the data

Multiple Choice

What information is included in a packet header?

• Only the destination website name

• The sender’s address and data content only

• Sender address, destination address, and packet number

• The password used to access the Internet

Multiple Choice

Why does a router inspect a packet’s header?

• To delete unnecessary packets

• To encrypt the data

• To decide where to forward the packet

• To store the packet permanently

Multiple Choice

Why might packets arrive at the destination in the wrong order?

• Routers change the packet content

• Packets may take different routes through the network

• ISPs block some packets

• The destination computer ignores packet numbers

Multiple Choice

What happens once all packets reach the destination computer?

• They are deleted immediately

• They are sent back to the ISP

• They are put back together in the correct order

• They are forwarded to another router

Multiple Choice

Which of the following best explains how data is typically assembled in packets for transmission over the internet?

• Each packet contains data to be transmitted, along with metadata containing information used for routing the data

• Each packet contains an encrypted version of the data to be transmitted, along with metadata containing the key needed to decrypt the data

• Each packet contains only the metadata used to establish a direct connection so that the data can be transmitted

• Each packet contains multiple data files bundled together, along with metadata describing how to categorize each data file

Multiple Select

What services other than the World Wide Web and email use the Internet?

• File Transfer Protocol (FTP)

• Hypertext Transfer Protocol (HTTP)

• Simple Mail Transfer Protocol (SMTP)

• Voice over Internet Protocol (VoIP)

Match

Match each Internet term with its correct description.

• Splits data into smaller units sent across the Internet

• Forwards data packets between different networks

• Provides users with a connection to the Internet

• A human-readable address that represents an IP address

• Translates domain names into IP addresses

Packet

Router

ISP (Internet Service Provider)

Domain Name

DNS (Domain Name Service)

• Packet

• Router

• ISP (Internet Service Provider)

• Domain Name

• DNS (Domain Name Service)

Multiple Choice

What is the primary function of a web browser when accessing the World Wide Web?

• To create web pages

• To convert data from a web server to a human-readable format

• To store data on the server

• To manage internet security

Multiple Choice

Which statement best describes the World Wide Web (WWW)?

• A global network of cables and satellites

• A service that runs on the Internet and provides access to web pages

• A protocol used to transfer data between devices

• A type of computer used to store websites

Match

Match each term related to the World Wide Web with its correct description.

• A program used to access and display web pages

• A service that runs on the Internet and provides access to web pages

• A computer that provides web pages to clients

• Text that contains links to other web pages

• A clickable link that takes you to another document or web page

Web Browser

World Wide Web (WWW)

Web Server

Hypertext

Hyperlink

• Web Browser

• World Wide Web (WWW)

• Web Server

• Hypertext

• Hyperlink

Multiple Choice

What is a URL and what does it represent?

• A type of web browser

• A web address for a web page or file

• A protocol for data transfer

• A type of internet service provider

Multiple Choice

What is the role of the domain name service (DNS) in connecting to a web server?

• To find the IP address of the required web server

• To display the web page

• To transfer data between computers

• To format the text on a web page

Drag and Drop

The address used to locate a web page or file on the World Wide Web​ ​

Placeholder

system that translates a domain name into an IP address​

Placeholder

The language used to describe the structure and content of a web page​

Placeholder

A program used to request, receive, and display web pages​

Placeholder

A protocol used to transfer web pages from a web server to a browser

Placeholder

Drag these tiles and drop them in the correct blank above

HTML

DNS (Domain Name Service)

Web Browser

URL

HTTP / HTTPS

Dropdown

The special set of characters that indicates the start and end of an HTML element and that element's type​

Select answer

Fill in the Blanks

Multiple Choice

The world is currently in a transition to using IPv6, a newer version of the IP protocol that uses 128-bit addresses instead of 32-bit addresses used by IPv4. What is the main problem that IPv6 was created to solve?

• 32-bit addresses could not accommodate the increased size and amount of data traveling on the Internet as it has grown in popularity

• IPv6 will allow problems with IPv4's address hierarchy to be resolved

• IPv4 proved unreliable in some cases where network redundancy could not be ensured

• 32-bit addresses could not ensure that every internet-connected device can receive a unique IP address

Multiple Choice

What are the components needed to access the Internet as shown in the diagram?

• Modem

• Router

• Switch

• Access Point

Multiple Choice

How can managed switches be configured?

• Through physical buttons on the device

• Via a command-line interface or a web-based management GUI

• Only through a web-based management GUI

• They cannot be configured

Multiple Choice

What is the purpose of a Wireless Access Point (WAP)?

• To transmit data over long distances

• To provide a physical connection to the network

• To allow wireless devices to connect to a wired network

• To filter harmful data from entering the network

Multiple Choice

What is the primary function of a modem in a LAN?

• To convert signals into electrical signals

• To transmit signals along cables

• To connect to the Internet Service Provider

• To combine with routers

Dropdown

Converts signals so they can be transmitted over ISP cables​

Select answer

Forwards data packets between different networks​

Select answer

Connects devices within a LAN and sends data only to the intended device​

Select answer

Allows wireless devices to connect to a wired network using Wi-Fi​

Select answer

Match

Match each device with a key characteristic.

• Often combined with a router in a single Internet router box

• Transmits messages to all nearby wireless devices

• Builds a table of device addresses to reduce network traffic

• Links a home network to the Internet

Modem

Wireless Access Point (WAP)

Switch

Router

• Modem

• Wireless Access Point (WAP)

• Switch

• Router

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident