5.1. The internet and the world wide web
A subsection of Computer Science, 2210, through 5. The internet and its uses
Listing 10 of 32 questions
A student enters the uniform resource locator (URL) for a web page into their tablet computer. State what is meant by a URL. Identify two different parts of a URL. The student enters the URL into a piece of software that then displays the web page. Identify the name of this software. Draw and annotate a diagram to show how the web page is located and retrieved to be displayed on the student’s tablet computer. The data for the web page is transmitted using the secure socket layer (SSL) protocol. Complete the paragraph about the SSL protocol. Use only terms from the list. Not all terms need to be used. Some terms may be used more than once. encrypted file server hypertext markup language (HTML) hypertext transfer protocol (HTTP) operating system search engine unencrypted URL web browser web server The asks the to identify itself. The sends back its digital certificate. The authenticates the digital certificate. If it is authentic, data transmission begins.
2210_w24_qp_12
THEORY
2024
Paper 1, Variant 2
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State what is meant by the term SSL. The following stages take place when a user wishes to access a secure website. Put each stage in sequence by writing the numbers 1 to 6 in the column on the right. The first one has been done for you. Stage Sequence number the encrypted data is then shared securely between the web browser and the web server the web browser attempts to connect to a website which is secured by SSL the web server sends the web browser a copy of its SSL certificate the web browser requests the web server to identify itself the web server will then send back some form of acknowledgement to allow the SSL encrypted session to begin the web browser checks whether the SSL certificate is trustworthy; if it is, then the web browser sends a message back to the web server
2210_s15_qp_12
THEORY
2015
Paper 1, Variant 2
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RockICT is a music business that has a website to allow customers to view and buy the products it sells. The website consists of web pages. Describe what is meant by HTML structure and presentation for a web page. The URL for the music company’s website is: https://www.rockict.net/index.htm Part 2 Part 1 Identify what Part 1 and Part 2 represent in this URL. Part 1 Part 2 Describe what is meant by https. When a customer enters the website, a message is displayed: “RockICT makes use of cookies. By continuing to browse you are agreeing to our use of cookies.” Explain why the music company uses cookies. The music company is concerned about the security of its website. The company uses a proxy server as part of its security system. Describe the role of a proxy server in the security system.
2210_s18_qp_11
THEORY
2018
Paper 1, Variant 1
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Priya creates a website to sell her old comic books and superhero figures. She uses HTML to create her website. The HTML she produces has both structure and presentation. Explain what is meant by HTML structure and presentation. Include an example of each. Structure Presentation Priya uses cookies in her website. Five statements are given about cookies. Tick (✓) to show if the statement is True or False. Statement True (✓) False (✓) Cookies can be used to store a customer’s credit card details Cookies can be used to track the items a customer has viewed on a website Cookies will corrupt the data on a customer’s computer Cookies are downloaded onto a customer’s computer Cookies can be deleted from a customer’s computer Priya stores her website on a webserver. To transmit the website data to the webserver she uses parallel duplex data transmission. Describe how data is transmitted using parallel duplex data transmission. Priya has a URL for her website. State what is meant by a URL. Priya is concerned about a denial of service attack (DoS) occurring on her webserver. Explain what is meant by a denial of service attack. Give one security device that can be used to help prevent a denial of service attack.
2210_s19_qp_12
THEORY
2019
Paper 1, Variant 2
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Meena uses a browser to research information for her business. Give three functions of a browser. Meena buys products for her business using the Internet. The Transport Layer Security (TLS) protocol is used for transferring data when she buys products. One layer of the TLS protocol is the handshake layer. Describe the purpose of the handshake layer. Identify the other layer of the TLS protocol. Identify another protocol that can be used to transfer data securely. Meena visits a website to buy products for her business. The browser uses a small file to store the details of the products she views. This allows the website to display advertisements for other products she may like. The small file also stores her log-in details. Give the name of this type of file.
2210_s20_qp_12
THEORY
2020
Paper 1, Variant 2
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Joelle is a student who uses the Internet. The table contains five terms or definitions that relate to the Internet. Complete the table by writing each missing term or definition. Term Definition browser this is the company that provides a user with a connection to the Internet this is a protocol that is used to send data for web pages across the Internet Uniform Resource Locator (URL) cookie Joelle uses a firewall to keep her data safe when she uses the Internet. Tick (3) to show which statement about firewalls is true. Tick (3) Firewalls can only be hardware‑based Firewalls can only be software‑based Firewalls can be hardware‑based or software‑based Joelle’s parent also uses the firewall to limit the websites that Joelle can access. Explain how the firewall is used to limit the websites that Joelle can access.
2210_s22_qp_12
THEORY
2022
Paper 1, Variant 2
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A student uses the internet for their schoolwork to research what is meant by pharming. State the aim of pharming. Draw and annotate a diagram to represent the process of pharming. The student uses a web browser to access data on the internet. Explain the purpose of the web browser. Storing cookies is one function of the web browser. Give three other functions of the web browser. A student visits a website that uses session cookies, instead of persistent cookies. Explain the difference between session cookies and persistent cookies.
2210_s23_qp_11
THEORY
2023
Paper 1, Variant 1
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Complete the statements about cookies. Use the terms from the list. Some of the terms in the list will not be used. Some terms may be used more than once. compression executable hypertext markup language (HTML) hypertext transfer protocol (HTTP) image internet protocol (IP) address persistent session sound text uniform resource locater (URL) web browser web server Cookies are small files that are sent between a and a . cookies are stored in memory and not in the user’s secondary storage. When the web browser is closed a cookie is lost, whereas a cookie is not lost. Give three functions of a cookie.
2210_s23_qp_12
THEORY
2023
Paper 1, Variant 2
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Questions Discovered
32