Domain 4 Answers and Explanations

1. A. The INSERT, UPDATE, and DELETE commands all have the ability to modify information in a database, potentially resulting in an integrity violation. The SELECT command is used to retrieve, but not modify, information, so it is unlikely to result in an integrity issue. The use of the SELECT command is more likely to result in a confidentiality issue.
2. B. OAuth is commonly used to provide API-based SSO for web applications. OpenID is used for consumer-grade SSO implementations, while SAML is used for enterprise-grade SSO implementations. IPSec is a network security protocol used for VPN connections, among other purposes, but is not associated with SSO implementations.
3. A. The false rejection rate (FRR) of a system is calculated by dividing the number of false rejections by the total number of authentication attempts. In this dataset, there are 200 total authentication attempts, of which two were false rejections of an authorized user. Therefore...