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Computer Science · Oct / Nov 2024 · Paper 12 · Question 7

0478

As printed in the paper

The question as text

A student enters the uniform resource locator (URL) for a web page into their tablet computer.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme

  • 7(a)[1]

    A text-based address for a website/web page

  • 7(b)[2]

    Any two from:

    Protocol
    Domain name
    File name

  • 7(c)[1]

    Web browser

  • 7(d)[5]

    One mark for each correct part of the diagram.

    The diagram shows:

    URL sent from web browser to the DNS
    DNS finding matching IP address
    If it cannot find the URL, it is sent to the next DNS (until found)
    IP address returned to web browser
    Request sent from web browser to web server (for web page)
    Web page/HTML files sent from web server to web browser
    Web browser rendering HTML

    For example:

    Searches for

    matching IP

    address

    URL sent to DNS

    Web browser

    DNS

    IP address returned

    Sent to next

    Request

    DNS if URL

    Web pages

    sent

    not found

    sent

    DNS

    Web server

  • 7(e)[5]

    One mark for each correct term in the correct order:

    Web browser
    Web server
    Web server
    Web browser
    Encrypted
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