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Test of database security P9

  1. Question 1. The key school is the school:
    1. Single Key
    2. Unique Key
    3. First Key
    4. Primary Key
  2. Question 2. Which of the following statements is incorrect when talking about the client-server database?
    1. In the client-server architecture, the components (of the QSSDL) interact with each other to create the system consisting of the resource request component and the resource allocation component.
    2. Two components require resources and the resource component must be installed on the same computer
    3. The resource level component is usually installed at a server on the network (local).
    4. Components that require resources can be installed on many other machines (clients) on the network
  3. Question 3. Choose the correct option. Two tables in a relational database linked together through:
    1. Address of tables
    2. School's name
    3. Properties of the selected fields (not necessarily the keys)
    4. Key attribute
  4. Question 4. Which of the following statements is incorrect when talking about personal database?
    1. Users act as database administrators
    2. The safety of the personal database system is very high
    3. Personal database system is stored on 1 machine
    4. Database system only allows 1 user at a time
  5. Question 5. Which of the following criteria is often used to select a primary key?
    1. The key has the least properties
    2. Does not contain attributes that change over time
    3. Any lock
    4. Only the key has an attribute
  6. Question 6. What is a relational database?
    1. The database is built on the relational data model
    2. Database used to create, update and exploit relational databases
    3. The database is built based on relational data model and relational database exploitation
    4. Database used to create, update and exploit relational databases based on relational data model
  7. Question 7. Links between tables are based on:
    1. Key attribute
    2. Properties that match each other between tables
    3. The intention of the database system administrator
    4. The intention to join tables into a table has more properties
  8. Question 8. Which of the following statements is incorrect when talking about the advantages of a client-server database?
    1. Cost for communication decreased
    2. Adding a client is easy
    3. Developing and using client-server database systems is quite simple and easy
    4. Enhance the ability to ensure consistency of data
  9. Question 9. Which of the following statements about relational databases is correct?
    1. Set of data tables
    2. Database created from QTCSDL Access system
    3. Database that is interrelated between data
    4. The database is built on the relational data model
  10. Question 10. Which of the following statements is incorrect?
    1. Each table has at least one key
    2. Should choose the primary key is the key with the least attribute
    3. There can be multiple primary keys in a table
    4. Determining the key depends on the logical relationship of the data, not on the value of the data
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