O-LevelComputer ScienceThe Internet and its uses2210/12 · Oct/Nov 2021 · Q105 Marks
Jermain uses the Secure Socket Layer (SSL) protocol for secure transmission when sending data using the internet.
- (a)Explain how the SSL protocol secures the data for transmission.[2]
- (b)Identify an alternative protocol that could be used for secure transmission of data using the internet.[1]
- (c)Give two ways that a user can identify if a website uses secure data transmission. 1 2[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.
- 10(a) - Enables an encrypted link (between the browser and the web server) // It encrypts the data; - based on the authentication of an (SSL) certificate // and will only send it if the certificate is authentic
- 10(b) - Transport Layer Security // TLS
- 10(c) Any two from: - URL begins with HTTPS; - Padlock symbol is locked; - Check the certificate is valid
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