Security, Privacy and Data Integrity
39 questions· page 1 of 4
The banker needs to transfer confidential data across the internet.
Identify and describe one method of restricting the risks posed by an unauthorised person intercepting the data whilst it is being transferred across the internet.
Method ......................................................................................................................................
Description ................................................................................................................................
The banker receives confidential data across the internet. The data includes a digital signature.
Explain how a digital signature can make sure the data has not been changed during transmission.
The data that is transferred can also be verified using a checksum.
Explain how data can be verified using a checksum.
Draw one line from each verification method to indicate whether it is used during data transfer or data entry.
Explain how a digital signature is used to authenticate a digital document during transmission over a network.
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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 |
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| ……………………….. ……………………….. | ........................................................................................................ ........................................................................................................ ........................................................................................................ |
| ……………………….. ……………………….. | ........................................................................................................ ........................................................................................................ ........................................................................................................ |
Describe the following threats to a computer system.
Phishing email ..........................................................................................................................
Spyware ....................................................................................................................................
Data verification is one method of protecting the integrity of data.
Describe one other method of protecting the integrity of data.
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State one difference and one similarity between pharming and phishing.
Difference .................................................................................................................................
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Similarity ...................................................................................................................................
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Explain how the data security risks of malware can be restricted.
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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 ......................................................................................................................
Explain why the school needs to keep both its data and its computer system secure from unauthorised access.
Data ..........................................................................................................................................
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Computer system .....................................................................................................................
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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 |
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| .......................... .......................... | .................................................................................. .................................................................................. .................................................................................. .................................................................................. | .......................... .......................... |
| .......................... .......................... | .................................................................................. .................................................................................. .................................................................................. .................................................................................. | .......................... .......................... |
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.
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State why data needs to be kept secure.
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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.
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Identify and describe one method of data verification that can be used when transferring the data from paper to the computer.
Method ..............................................................................................................................
Description ........................................................................................................................
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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 .....................................................................................................................
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Presence check .................................................................................................................
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Length check .....................................................................................................................
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Explain why the data in the system may not be correct even after validating and verifying the data.
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Draw one line from each security feature to its most appropriate description.
A checksum can be used to detect errors during data transmission.
Describe how a checksum is used.
One validation method is a presence check.
Describe two other validation methods that can be used to validate non-numeric data.
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