6. Security, privacy and data integrity
A section of Computer Science, 9618
Listing 9 of 9 questions
A company has several security measures in place to prevent unauthorised access to the data on its computers. Describe the difference between the security and privacy of data. Each employee has a username and password to allow them to log onto a computer. An employee’s access rights to the data on the computers is set to either read-only, or read and write. Identify one other software-based measure that could be used to restrict the access to the data on the computers. The company is also concerned about threats posed by networks and the internet. Identify two threats to the data that are posed by networks and the internet. Threat 1 Threat 2
9618_s21_qp_12
THEORY
2021
Paper 1, Variant 2
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A teacher is writing examination papers on a laptop computer. The computer is connected to the internet. The teacher is concerned about the security and privacy of the papers. State the difference between the security of data and the privacy of data. Identify and describe two threats to the data. Identify one security measure to protect against each threat. Each security measure must be different. Threat 1 Description Security measure Threat 2 Description Security measure
9618_s22_qp_11
THEORY
2022
Paper 1, Variant 1
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Xanthe wants to maintain the integrity and security of data stored on her computer. Explain the difference between data security and data integrity. Xanthe uses both data validation and data verification when entering data on her computer. Describe how data validation helps to protect the integrity of the data. Give an example in your answer. Description Example Describe how data verification helps to protect the integrity of the data. Give an example in your answer. Description Example Two malware threats are spyware and viruses. Give two similarities and one difference between spyware and a virus. Similarity 1 Similarity 2 Difference
9618_w21_qp_11
THEORY
2021
Paper 1, Variant 1
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Xanthe wants to maintain the integrity and security of data stored on her computer. Explain the difference between data security and data integrity. Xanthe uses both data validation and data verification when entering data on her computer. Describe how data validation helps to protect the integrity of the data. Give an example in your answer. Description Example Describe how data verification helps to protect the integrity of the data. Give an example in your answer. Description Example Two malware threats are spyware and viruses. Give two similarities and one difference between spyware and a virus. Similarity 1 Similarity 2 Difference
9618_w21_qp_13
THEORY
2021
Paper 1, Variant 3
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A school stores personal data about its staff and students on its computer system. Explain why the school needs to keep both its data and its computer system secure from unauthorised access. Data Computer system Complete the table by identifying two security threats to the data on a computer. Describe each threat. Give a different prevention method for each threat. Threat Description Prevention method Data is encrypted when it is transmitted within the school network, or externally such as over the internet. Describe what is meant by encryption and explain why it is used.
9618_s22_qp_12
THEORY
2022
Paper 1, Variant 2
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A company wants to store data about its employees in a computer system. The owner of the company wants to ensure the security and integrity of the data. State why data needs to be kept secure. One way the data stored in a computer can be kept secure is by using back-up software. Give two other ways the data stored in a computer can be kept secure. The data about the employees is currently stored on paper. The data needs to be transferred into the computer system. Data validation and verification are used to help maintain the integrity of the data. Identify and describe one method of data verification that can be used when transferring the data from paper to the computer. Method Description The company needs to transfer the date of birth of each employee into the computer system. Give one example of how each of the following data validation rules can be used to validate the date of birth when it is entered into the system. Range check Presence check Length check Explain why the data in the system may not be correct even after validating and verifying the data.
9618_s22_qp_13
THEORY
2022
Paper 1, Variant 3
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Data needs to be kept secure when stored on a computer and during transmission over a network. Explain how a digital signature is used to authenticate a digital document during transmission over a network. Complete the table by identifying and describing two types of software that can be installed on a computer to prevent threats over a network. Type of software Description ……………………… ……………………… ……………………… ………………………
9618_s23_qp_13
THEORY
2023
Paper 1, Variant 3
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Questions Discovered
9