World Wide Web and Networking Basics
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Questions and Answers

What is the term for the manageable chunks of data sent over the Internet?

  • Packets (correct)
  • Units
  • Segments
  • Frames

    • Which layer of the TCPIIP protocol stack is responsible for adding the destination address to each packet?

  • Hardware Layer
  • Application Layer
  • Internet Layer (correct)
  • TCP Layer

    • What role does the TCP layer play in packet transmission?

  • It compresses the data for faster transmission.
  • It determines the routing of packets.
  • It assigns port numbers to packets. (correct)
  • It encrypts the packets for security.

    • What happens to a long message as it is sent through the TCPIIP protocol stack?

    <p>It is split into packets by each stack layer.</p> Signup and view all the answers

    What is the primary purpose of the hardware layer in the TCPIIP protocol stack?

    <p>To convert packets into electronic signals.</p> Signup and view all the answers

    How does the ISP's router decide where to send each packet?

    <p>By examining the destination address.</p> Signup and view all the answers

    What type of software is used to request information on the World Wide Web?

    <p>Client software</p> Signup and view all the answers

    What happens to packets after they exit the TCP layer?

    <p>They receive an IP address.</p> Signup and view all the answers

    What does each packet require to ensure it is received correctly at the destination?

    <p>A port number.</p> Signup and view all the answers

    Which of the following options is an example of server software for the World Wide Web?

    <p>CERN HTTP</p> Signup and view all the answers

    Which form of information does the World Wide Web NOT support?

    <p>Physical documents</p> Signup and view all the answers

    Which networking model does the World Wide Web follow?

    <p>Client/server model</p> Signup and view all the answers

    What is the primary role of a server in the World Wide Web context?

    <p>To provide information</p> Signup and view all the answers

    Which of the following is NOT a classification of computer networks based on distance?

    <p>VPN</p> Signup and view all the answers

    What do hypertext information contain?

    <p>Links to other information</p> Signup and view all the answers

    Which of the following is a function of a Web browser in the context of the Internet?

    <p>Request information from servers</p> Signup and view all the answers

    What is the primary requirement to connect to an FTP server?

    <p>A login name and password</p> Signup and view all the answers

    What is the primary role of a router in the Internet infrastructure?

    <p>To examine IP addresses and route packets between sub-networks.</p> Signup and view all the answers

    Which of the following is a shareware program mentioned for maintaining a website?

    <p>WSFTP</p> Signup and view all the answers

    Why is it impractical to create a detailed map of the entire Internet?

    <p>The Internet's size and complexity make it constantly changing.</p> Signup and view all the answers

    What does the TELNET protocol specify?

    <p>How a client contacts the server and output is transmitted</p> Signup and view all the answers

    How do routers determine where to send packets?

    <p>They maintain and reference routing tables for decision-making.</p> Signup and view all the answers

    What is a common alternative username for anonymous connections to FTP servers?

    <p>anonymous</p> Signup and view all the answers

    What does Telnet allow users to do?

    <p>Access remote services not available locally</p> Signup and view all the answers

    What does NSP stand for in the context of Internet infrastructure?

    <p>Network Service Provider</p> Signup and view all the answers

    How does Telnet work in relation to user inputs?

    <p>It passes keystrokes and mouse movements to the remote machine</p> Signup and view all the answers

    What is depicted by the black boxes in the provided figure?

    <p>Routers connecting different backbones.</p> Signup and view all the answers

    Which statement best describes the complexity of an NSP's backbone infrastructure?

    <p>It's a complex network that requires detailed diagrams.</p> Signup and view all the answers

    Which of the following is NOT a function provided by Telnet?

    <p>Sending emails directly from the remote machine</p> Signup and view all the answers

    What type of connection does Telnet primarily facilitate?

    <p>Text-based remote login connections</p> Signup and view all the answers

    What happens when a packet reaches a router?

    <p>The router checks its routing table for the most efficient path.</p> Signup and view all the answers

    What do routers not typically know about regarding their connections?

    <p>What IP addresses are 'above' them in the hierarchy.</p> Signup and view all the answers

    What is the primary characteristic of HTTP as a protocol?

    <p>It is a connectionless text-based protocol.</p> Signup and view all the answers

    What happens when a web browser cannot find a requested page on a server?

    <p>The server sends an HTTP 404 error message.</p> Signup and view all the answers

    Before making an HTTP request, what must the web browser first retrieve?

    <p>The corresponding IP address from the DNS.</p> Signup and view all the answers

    Which of the following statements about HTTP is accurate?

    <p>It is a protocol that facilitates the transfer of hypertext documents.</p> Signup and view all the answers

    What task does the web browser perform after receiving the requested web page from the server?

    <p>It parses the page for additional elements.</p> Signup and view all the answers

    What is the purpose of a Request For Comments (RFC) in relation to Internet protocols?

    <p>To outline standards and protocols for Internet communication.</p> Signup and view all the answers

    What does the WWW (World Wide Web) primarily consist of?

    <p>Linked documents from various locations around the world.</p> Signup and view all the answers

    How does a web browser handle additional page elements after loading the initial webpage?

    <p>It makes separate connections and sends requests for each element.</p> Signup and view all the answers

    Study Notes

    World Wide Web (WWW)

    • WWW is a service that uses the internet to send and receive information.
    • WWW supports multimedia and hypertext information.
    • WWW utilizes a graphic user interface (GUI) for ease of use.
    • WWW follows the client/server model.
    • Clients use web browsers, examples include Netscape and Internet Explorer.
    • Servers use HTTP servers, examples include Mac HTTP, CERN HTTP, and NCSA HTTP.

    Network Classification

    • Networks can be classified based on distance: LAN, MAN, and WAN.
    • LAN (Local Area Network): Covers a small area.
    • MAN (Metropolitan Area Network): Covers a city or metropolitan area.
    • WAN (Wide Area Network): Connects devices over a large geographical area.

    Internet Protocol Stack

    • Used on the internet, commonly referred to as TCP/IP.

    Packet Switching

    • Internet data is sent in manageable chunks called packets.
    • Packets contain a destination address (IP address) and a port number for specific program communication.

    Internet Routing

    • Routers are packet switches that connect networks.
    • Routers use routing tables to determine the path for packets based on destination IP addresses.
    • Routers do not have complete knowledge of the entire internet, they operate within their sub-networks.
    • Internet infrastructure is highly complex and constantly evolving.

    Hypertext Transfer Protocol (HTTP)

    • HTTP is an application-level protocol built on top of TCP.
    • Used for communication between web browsers and web servers.
    • HTTP is connectionless, meaning a new connection is made for each request.

    HTTP Communication Steps:

    • Web browser connects to a domain name server to retrieve the IP address of the web server.
    • The web browser connects to the web server and sends an HTTP request.
    • The web server processes the request, retrieves the desired web page, and sends it back to the browser.
    • The browser parses the page and requests additional elements like images or applets.
    • Connections are closed after each request.

    Internet Protocols

    • Many internet protocols are specified in documents called Request For Comments (RFCs).

    Telnet

    • Telnet stands for "TErminal NETwork".
    • It is a TCP/IP application and a protocol for connecting a local computer to a remote computer.
    • Allows a local computer to act as a terminal for a remote host.
    • Provides direct access to various services on the inetrnet.
    • Allows access to services not available on the local host.
    • Useful for accessing graphical interfaces and public services like library card catalogs.

    Scripting Languages

    • Used for automating tasks and creating interactive web pages.

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    Related Documents

    Unit 1 The Internet PDF

    Description

    This quiz covers key concepts of the World Wide Web, including its multimedia capabilities and client/server model. Additionally, it explores network classifications such as LAN, MAN, and WAN, and explains fundamental internet protocols like TCP/IP and packet switching. Test your knowledge on these essential networking topics!

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