WWW Servers Lecture CSE482/ETE 334
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Questions and Answers

What is a common feature of web servers?

  • Generating dynamic URLs
  • Running client-side scripts
  • Accepting HTTP requests from the network (correct)
  • Creating HTML documents

    • How is the content delivered by web servers classified?

  • Real-time and delayed
  • Interactive and non-interactive
  • Static and dynamic (correct)
  • Text-based and image-based

    • What does path translation involve in the context of web servers?

  • Creating hyperlinks between pages
  • Encrypting data sent over the network
  • Converting images into text files
  • Translating the path component of a URL into a local file system resource (correct)

    • What is the role of web hosting services?

    <p>Allowing individuals and organizations to make their websites accessible on the web</p> Signup and view all the answers

    What type of companies are web hosts?

    <p>Companies that provide server space and internet connectivity for clients</p> Signup and view all the answers

    What is the primary purpose of a web host providing data center space and connectivity to the Internet for other servers?

    <p>To provide colocation services for the other servers</p> Signup and view all the answers

    What is the key difference between non-persistent HTTP and persistent HTTP?

    <p>Non-persistent HTTP can only send one object per TCP connection, while persistent HTTP can send multiple objects per connection</p> Signup and view all the answers

    Why is HTTP considered a 'stateless' protocol?

    <p>Because the server does not maintain any information about past client requests</p> Signup and view all the answers

    What is the primary advantage of a 'stateful' protocol over a 'stateless' protocol like HTTP?

    <p>Stateful protocols can provide a more consistent user experience by maintaining session information</p> Signup and view all the answers

    Which statement best describes the relationship between TCP and HTTP?

    <p>HTTP is an application-layer protocol that uses TCP for reliable data transfer</p> Signup and view all the answers

    What is the main purpose of the persistent HTTP connection feature?

    <p>To reduce the overhead of establishing a new TCP connection for each HTTP request</p> Signup and view all the answers

    What is the default mode of HTTP/2.0 in terms of connection?

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

    How many Round-Trip Times (RTTs) does nonpersistent HTTP require per object?

    <p>2 RTTs</p> Signup and view all the answers

    What does a server do in persistent HTTP without pipelining after sending responses?

    <p>Leaves the connection open</p> Signup and view all the answers

    In persistent HTTP with pipelining, when does the client send requests?

    <p>As soon as it encounters a referenced object</p> Signup and view all the answers

    What is the definition of RTT in response time modeling?

    <p>The time for a packet to travel from client to server and back</p> Signup and view all the answers

    What was the initial purpose of the World Wide Web (WWW)?

    <p>To facilitate an easy way of sharing and editing research documents among a geographically dispersed group of scientists</p> Signup and view all the answers

    What was the significance of the Mosaic web browser?

    <p>It was the first web browser to provide a graphical user interface</p> Signup and view all the answers

    Which of the following is not considered a famous web server?

    <p>Google Chrome</p> Signup and view all the answers

    According to the statistics provided, which web server has the highest usage?

    <p>Apache HTTP Server</p> Signup and view all the answers

    What is the primary function of a web server?

    <p>To accept HTTP requests from clients and serve them web pages</p> Signup and view all the answers

    Who is credited with developing the world's first web server?

    <p>Tim Berners-Lee</p> Signup and view all the answers

    What is the total number of RTTs required to initiate a TCP connection and transmit an HTTP request?

    <p>2 RTTs</p> Signup and view all the answers

    What is the purpose of the HEAD method in HTTP/1.1?

    <p>To ask the server to leave the requested object out of the response</p> Signup and view all the answers

    Which of the following is NOT a valid HTTP request method mentioned in the text?

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

    How are form inputs typically uploaded to the server using HTTP?

    <p>Using the POST method with form data in the request body</p> Signup and view all the answers

    What is the purpose of the User-agent header field in an HTTP request?

    <p>To identify the client software that is making the request</p> Signup and view all the answers

    What is the purpose of the Connection: close header field in an HTTP response?

    <p>To indicate that the server should close the TCP connection after sending the response</p> Signup and view all the answers

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