5. The internet and its uses
A section of Computer Science, 0478
Listing 10 of 111 questions
Data is valuable. It needs to be kept secure and it can easily be damaged. Give three different ways that data can be accidentally damaged. The Secure Socket Layer (SSL) protocol can be used to securely transmit data in online banking. State three other different applications that use SSL. Application 1 Application 2 Application 3 Online banking is increasing in popularity. Online banking can be a risk as it can raise a number of security issues. SSL can be used as a security method to make online banking safer. Identify and describe three other security methods that could be used to make online banking safer. Security method 1 Security method 2 Security method 3
0478_w17_qp_11
THEORY
2017
Paper 1, Variant 1
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Data is valuable. It needs to be kept secure and it can easily be damaged. Give three different ways that data can be accidentally damaged. The Secure Socket Layer (SSL) protocol can be used to securely transmit data in online banking. State three other different applications that use SSL. Application 1 Application 2 Application 3 Online banking is increasing in popularity. Online banking can be a risk as it can raise a number of security issues. SSL can be used as a security method to make online banking safer. Identify and describe three other security methods that could be used to make online banking safer. Security method 1 Security method 2 Security method 3
0478_w17_qp_13
THEORY
2017
Paper 1, Variant 3
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HTML can be used to create the structure and the presentation of web pages. Describe what is meant by HTML structure. Gloria writes a paragraph as an answer to an examination question about accessing a website. Use the list given to complete Gloria’s answer by inserting the correct four missing terms. Not all terms will be used. • browser • cookies • Hypertext Markup Language (HTML) • hypertext transfer protocol • hypertext transfer protocol secure • Internet Protocol address (IP address) • Media Access Control address (MAC address) • web server The user enters the URL of the website. The uses the DNS server to look up the of the website. The browser sends a request to the to obtain the website files. The website files are sent as that is interpreted by the browser.
0478_w19_qp_11
THEORY
2019
Paper 1, Variant 1
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Transport Layer Security (TLS) protocol is used to secure the transmission of data over the Internet. Identify the two layers in the TLS protocol. Layer 1 Layer 2 The following paragraph explains how data is sent securely using the TLS protocol. Use the terms to complete the paragraph. Not all terms may need to be used. • authentic • binary • browser • certificate • internet service provider • signal • web page • web server • website The browser requests the to identify itself by providing its . This is sent and a check is performed to see if it is . If it is, the sends a back to the web server and data transmission begins. Identify one other protocol that can be used to secure data transmission over the Internet.
0478_w20_qp_11
THEORY
2020
Paper 1, Variant 1
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Luke is creating a website for his t-shirt design business. He is using HTML to create the website. HTML can be separated into structure and presentation. Give two examples of HTML structure. Example 1 Example 2 Give two examples of HTML presentation. Example 1 Example 2 Luke is concerned that his web server may be hacked or subjected to a denial of service (DoS) attack. State two security methods that Luke could use to help protect the web server from hacking or a DoS attack. Method 1 Method 2
0478_w20_qp_11
THEORY
2020
Paper 1, Variant 1
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Tina is creating a website for charity events. She uses HTML to create the website. State what is meant by HTML. She uses the hexadecimal colour code #43B7F0 as the background colour for her website. State whether background colour is an example of structure or presentation, in the website. The hexadecimal colour code #43B7F0 is stored in three 8-bit registers. Give the 8-bit binary values for each part of the hexadecimal code. B7 F0 Tina uses a microphone to record a welcome message for her website. State whether the microphone is an input or output device. She wants to compress the recording to make sure that the file is as small as possible for the website. Identify which type of compression she should use and describe how this would compress the file for the website. Type of compression Description Give two benefits of compressing the file for the website. Benefit 1 Benefit 2 Tina will use the TLS protocol in her website when selling tickets to people for different charity events. This makes sure that their personal data is transmitted securely. Identify the two layers that are present in the TLS protocol. Layer 1 Layer 2 Explain how data is sent securely using the TLS protocol. Tina is concerned about security threats to her web server. Identify three security threats to her web server that Tina might be concerned about. Tina installs a proxy server to help protect her website from security threats. Describe how the proxy server will help protect the website.
0478_w20_qp_12
THEORY
2020
Paper 1, Variant 2
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Questions Discovered
111