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Database Systems: Concepts, Design and Applications by S. K. Singh

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Review Questions

1.What is database security? Explain the purpose and scope of database security.
2.What do you mean by threat in a database environment? List the potential threats that could affect a database system.
3.List the types of database security issues.
4.Differentiate between authorization and authentication.
5.Discuss each of the following terms:
  1. Database Authorization

  2. Authentication

  3. Audit Trail

  4. Privileges

  5. Data encryption

  6. Firewall.

6.What is data encryption? How is it used in database security?
7.Discuss the two types of data encryption mechanisms used in database security.
8.Using the polyalphabetic substitution method and the encryption key, SECURITY, encrypt the plaintext message ‘SELL ALL STOCKS’.
9.What is meant by granting and revoking ...

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