Podcast
Questions and Answers
Which of the following is NOT a reason why a complex computer network might be difficult to set up?
Which of the following is NOT a reason why a complex computer network might be difficult to set up?
Which of the following network types is specifically designed for internal use within an organization, restricting access to authorized users?
Which of the following network types is specifically designed for internal use within an organization, restricting access to authorized users?
Which of the following network motivations primarily revolves around accessing large databases efficiently, especially when data duplication is expensive?
Which of the following network motivations primarily revolves around accessing large databases efficiently, especially when data duplication is expensive?
Which of the following network motivations is NOT considered a primary motivation for a network of scientific computers?
Which of the following network motivations is NOT considered a primary motivation for a network of scientific computers?
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Which of the following scenarios BEST exemplifies the use of an Extranet?
Which of the following scenarios BEST exemplifies the use of an Extranet?
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Which of these is NOT a potential security threat associated with a computer network?
Which of these is NOT a potential security threat associated with a computer network?
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Which of the following is the BEST description of the primary purpose of a Local Area Network (LAN)?
Which of the following is the BEST description of the primary purpose of a Local Area Network (LAN)?
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Which network layout is characterized by all nodes being connected to a central node, making it vulnerable to disruption if that central node fails?
Which network layout is characterized by all nodes being connected to a central node, making it vulnerable to disruption if that central node fails?
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What was the primary motivation behind the development of ARPANET, as described in the content presented?
What was the primary motivation behind the development of ARPANET, as described in the content presented?
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What type of network architecture did ARPANET utilize, as described in the content?
What type of network architecture did ARPANET utilize, as described in the content?
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What was the primary communication protocol used by computers connected to ARPANET, as mentioned in the text?
What was the primary communication protocol used by computers connected to ARPANET, as mentioned in the text?
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According to the content, what is the historical timeline of ARPANET's development and the introduction of email?
According to the content, what is the historical timeline of ARPANET's development and the introduction of email?
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How did the development of Local Area Ethernet Networks (LANs) and workstations affect ARPANET's growth?
How did the development of Local Area Ethernet Networks (LANs) and workstations affect ARPANET's growth?
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Which network layout is characterized by each node being connected to its immediate neighbors on either side, forming a closed loop?
Which network layout is characterized by each node being connected to its immediate neighbors on either side, forming a closed loop?
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Which of these network types is most resistant to the failure of a single node?
Which of these network types is most resistant to the failure of a single node?
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What is the primary purpose of a protocol in a network, as mentioned in the text?
What is the primary purpose of a protocol in a network, as mentioned in the text?
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Which of the following is NOT a valid value for the target
attribute of an <a>
element?
Which of the following is NOT a valid value for the target
attribute of an <a>
element?
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How would you create a hyperlink to an email address that opens the user's default email client?
How would you create a hyperlink to an email address that opens the user's default email client?
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Which of the following is an accurate description of an absolute hyperlink?
Which of the following is an accurate description of an absolute hyperlink?
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Which rel
attribute value would you use to indicate that a page is licensed under a specific license?
Which rel
attribute value would you use to indicate that a page is licensed under a specific license?
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What is the purpose of the download
attribute in an <a>
element?
What is the purpose of the download
attribute in an <a>
element?
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Which protocol is specifically designed for transferring files between computers on the internet?
Which protocol is specifically designed for transferring files between computers on the internet?
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What is the primary function of a Web Hosting service?
What is the primary function of a Web Hosting service?
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What is the main difference between HTTP and HTTPS?
What is the main difference between HTTP and HTTPS?
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Which of the following best describes the role of a search engine in the Internet?
Which of the following best describes the role of a search engine in the Internet?
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What distinguishes a 'client' computer from a 'server' computer in the client-server architecture of the internet?
What distinguishes a 'client' computer from a 'server' computer in the client-server architecture of the internet?
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Why is it important to understand that search engines don't search the entire internet?
Why is it important to understand that search engines don't search the entire internet?
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How do TCP/IP protocols facilitate communication on the internet?
How do TCP/IP protocols facilitate communication on the internet?
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What is the primary function of an Internet Service Provider (ISP)?
What is the primary function of an Internet Service Provider (ISP)?
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Which of the following best describes the concept of a 'web server'?
Which of the following best describes the concept of a 'web server'?
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In the context of the internet, what is the difference between a 'nonprofit organization' and a 'business'?
In the context of the internet, what is the difference between a 'nonprofit organization' and a 'business'?
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Which of the following is a valid HTML code to create an ordered list of three items?
Which of the following is a valid HTML code to create an ordered list of three items?
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What is the purpose of the \<dd>
tag in HTML?
What is the purpose of the \<dd>
tag in HTML?
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Which of the following is a correct statement about the relationship between HTML, CSS, and JavaScript?
Which of the following is a correct statement about the relationship between HTML, CSS, and JavaScript?
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What is the main difference between an ordered list and an unordered list in HTML?
What is the main difference between an ordered list and an unordered list in HTML?
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Which of the following is a valid option for the \<li>
tag in an ordered list?
Which of the following is a valid option for the \<li>
tag in an ordered list?
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In the context of HTML nested lists, which of the following is TRUE about the relationship between the \<ul>
and \<ol>
tags?
In the context of HTML nested lists, which of the following is TRUE about the relationship between the \<ul>
and \<ol>
tags?
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Which of the following statements about HTML description lists is TRUE?
Which of the following statements about HTML description lists is TRUE?
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Consider this HTML code: \<dl>\<dt>Term 1\</dt>\<dd>Description 1\</dd>\<dt>Term 2\</dt>\<dd>Description 2\</dd>\</dl>
. What would the output of this code look like?
Consider this HTML code: \<dl>\<dt>Term 1\</dt>\<dd>Description 1\</dd>\<dt>Term 2\</dt>\<dd>Description 2\</dd>\</dl>
. What would the output of this code look like?
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Flashcards
Computer Virus
Computer Virus
A malicious program that replicates itself to infect devices.
Denial of Service
Denial of Service
An attack that prevents access to a network or service.
Load Sharing
Load Sharing
Distributing computing tasks across multiple systems to balance the load.
Intranet
Intranet
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Extranet
Extranet
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Local Area Network (LAN)
Local Area Network (LAN)
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Data Sharing
Data Sharing
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Bus Network
Bus Network
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Star Network
Star Network
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Ring Network
Ring Network
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Mesh Network
Mesh Network
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Fully Connected Network
Fully Connected Network
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ARPANET
ARPANET
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NCP
NCP
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Protocol
Protocol
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Hyperlink
Hyperlink
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Link Target Options
Link Target Options
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Visited Link Appearance
Visited Link Appearance
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Email Link
Email Link
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Absolute Hyperlink
Absolute Hyperlink
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Ordered List
Ordered List
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HTML Tag for Ordered List
HTML Tag for Ordered List
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List Item Tag
List Item Tag
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Unordered List
Unordered List
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HTML Tag for Unordered List
HTML Tag for Unordered List
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Description List
Description List
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Description Term Tag
Description Term Tag
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Description Tag
Description Tag
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Nested List
Nested List
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HTML Structure Tags
HTML Structure Tags
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Web Hosting
Web Hosting
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Search Engine
Search Engine
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TCP/IP Protocol
TCP/IP Protocol
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HTTP
HTTP
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HTTPS
HTTPS
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Internet Service Provider (ISP)
Internet Service Provider (ISP)
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Client-Server Architecture
Client-Server Architecture
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Web Server
Web Server
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Algorithm
Algorithm
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Study Notes
Internet Overview
- The Internet is a global network of interconnected computer networks
- Uses TCP/IP protocols for communication
- Connects millions of private, public, academic, business, and government networks.
Computer Networks
- A network connects two or more computers (hosts) to share resources.
- Each device on a network is a node with a unique address.
- Protocols (rules) govern communication between computers.
- Networks facilitate communication (email, messaging, video conferencing) and sharing of data.
Network Properties
- Facilitate communication
- Permit sharing of data and information
- Share network and computing resources (e.g., printers)
- Can be insecure (vulnerable to hacking)
- Can be costly to set up
Network Types
- Local Area Network (LAN): Connects computers in a limited area (home, office).
- Wide Area Network (WAN): Spans large geographic areas (cities, countries).
- Intranet: A private network within an organization using Internet protocols.
- Extranet: A network that extends an organization's intranet to authorized external users.
- Enterprise Private Network: Connects multiple company sites, sharing resources.
- Virtual Private Network (VPN): A network that uses parts of a larger network (e.g., Internet) for secure communication.
Network Topologies
- Bus Network: All devices are connected to a single cable.
- Star Network: All devices connect to a central hub.
- Ring Network: Devices connected in a ring, data passes sequentially.
- Mesh Network: Each device connects to multiple other devices.
- Fully Connected Network: Every device connects to every other device.
- Network topologies define how devices relate within a network (logically and physically).
Internet History
- The U.S. Defense Department funded ARPANET (predecessor to the Internet) in 1969 to develop a secure network.
- ARPANET evolved into protocols for communicating across multiple networks, leading to TCP/IP.
- The Internet expanded rapidly, connecting more computers and services.
Internet Protocols
- TCP/IP: A suite of protocols that define how data is transmitted over the Internet.
- HTTP (Hypertext Transfer Protocol): Used for transferring web pages.
- HTTPS: Secure version of HTTP.
- FTP (File Transfer Protocol): Used for transferring files.
Key Web Concepts
- Web Page: A single document on the Internet.
- Web Site: A collection of several Web pages.
- URL (Uniform Resource Locator): An address that indicates the location of a resource on the web (e.g., protocol, domain name, etc.).
- Browsers: Software used to access and view web pages.
- Servers: Computers that store web pages and make them available to users.
- HTML (HyperText Markup Language): The programming language used to create web pages.
- Internet Protocol standard ensures data transmission protocols.
Search Engines
- Search engines allow users to find information on the web.
- Organize, store, and analyze information from the Internet.
- Search results based on keyword match.
Network Architecture
- Client-server architecture is used on the Internet.
- Servers provide services (e.g., web pages).
- Clients request and use these services.
Web Design
- Client/server architecture is foundational to internet services.
- Web Servers host web pages.
- Clients (users) access web pages through web browsers.
Other Important Concepts
- HTML tags describe content and structure.
- Website structure is organized to aid navigation.
- Multiple colors can help create useful websites.
- Web accessibility means designing websites usable by everyone, including users with disabilities.
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Description
This quiz explores the fundamentals of computer networks, including types such as LAN and WAN, and their properties and protocols. It highlights how networks facilitate communication and data sharing among users. Test your knowledge of the Internet and networking concepts.