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Questions and Answers
Which of the following is NOT a security need according to the text?
Which of the following is NOT a security need according to the text?
- Data availability
- Data confidentiality
- Data authentication (correct)
- Data integrity
What is the main purpose of confidentiality in computer security?
What is the main purpose of confidentiality in computer security?
- To provide timely, accurate, complete, and consistent information
- To prevent unauthorized changes to data
- To keep information securely against malicious actions (correct)
- To ensure the trustworthiness of data
Which mechanism supports confidentiality in computer security?
Which mechanism supports confidentiality in computer security?
- Data confidentiality and Data consistency
- Access control and Cryptography (correct)
- Data availability and Data authenticity
- Data integrity and System integrity
What does integrity refer to in the context of computer security?
What does integrity refer to in the context of computer security?
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What is the main focus of integrity in the computer security field?
What is the main focus of integrity in the computer security field?
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Study Notes
- Security needs in computer networks include confidentiality, integrity, and availability (CIA)
- Confidentiality is about keeping information secure and is crucial for sensitive fields like government and industry
- Access control and cryptography mechanisms support confidentiality
- Integrity refers to trustworthiness of data and prevention of unauthorized changes
- Two types of integrity: data and system
- Data integrity ensures timeliness, accuracy, completeness, and consistency of information
- Computers cannot provide or protect all qualities of data integrity, so it's discussed more narrowly as data and system integrity
- Computer security field focuses on data integrity as the trustworthiness and authenticity of data and preventing unauthorized modifications.
- System integrity refers to the security and reliability of computer systems and preventing unauthorized access, modification, or denial of services.
- In the context of the text, the author discusses confidentiality, data integrity, and system integrity as security needs in computer networks.
- Access control and cryptography mechanisms support confidentiality, while data and system integrity are important to ensure trustworthiness and accuracy of data.
- Computers cannot provide or protect all qualities of data integrity, so it's discussed narrowly as data and system integrity.
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Description
Test your knowledge of computer network security basics with this quiz covering topics such as data confidentiality, integrity, and availability, as well as conventional encryption methods.
