10. Which statement is false about usable systems?

    1. Usable systems are easy to remember how to use

    2. Usable systems are quick and easy to learn

    3. Usable systems rapidly recover from errors

    4. Usable systems do not need to recover from errors because they never crash

    5. All statements are true

5. Database systems

1. What is a database?

   1. the application of scientific knowledge for practical purposes

   2. Collection of related data and its metadata organized in a structured format

   3. integrated system of hardware, software, people, procedures, and data

   4. system software that acts as an interface between the user and the computer hardware

   5. exchange of information over significant distances by electronic means

2. What is a database system?

1. the application of scientific knowledge for practical purposes

2. collection of related data and its metadata organized in a structured format

3. integrated system of hardware, software, people, procedures, and data

4. system software that acts as an interface between the user and the computer hardware

5. exchange of information over significant distances by electronic means

3. What is illustrated on the picture?

   1. derived attribute

   2. entity

   3. relationship

   4. composite attribute

   5. multiple attribute

4. What is illustrated on the picture?

1. derived attribute

2. entity

3. relationship

4. composite attribute

5. multiple attribute

5. What is illustrated on the picture?

1. derived attribute

2. entity

3. relationship

4. composite attribute

5. multiple attribute

6. What is illustrated on the picture?

   1. derived attribute

   2. entity

   3. relationship

   4. composite attribute

   5. multiple attribute

7. What is illustrated on the picture?

1. derived attribute

2. entity

3. relationship

4. composite attribute

5. multiple attribute

8. What type of a relationship does this image represent?

   1. one-to-one

   2. one-to-many

   3. Many-to-one

   4. Many-to-many

   5. None of the above

9. Administrators, end users, and designers define which aspect a database system?

   1. database

   2. database system

   3. database management system

   4. business rules

   5. users

10. What manages interactions between end users and the database?

    1. database

    2. database system

    3. database management system

    4. business rules

    5. users

11. Who maintain the DBMS and is responsible for administering the database?

    1. administrators

    2. designers

    3. end user users

    4. power users

    5. None of the above

12. Who works on the designing and implementing the database?

    1. administrators

    2. designers

    3. end user users

    4. power users

    5. None of the above

13. In a database system, the programs that access the database operate on this tier

    1. presentation tier

    2. application tier

    3. hardware tier

    4. database tier

    5. user tier

14. In a database system, the end-users operate on this tier

    1. application tier

    2. database tier

    3. hardware tier

    4. presentation tier

    5. user tier

6. Data analysis and Data management

1. What type of dataset stores text?

   1. graphs and networks

   2. ordered

   3. spatial and image

   4. records

   5. abstract

2. What type of dataset stores video or sequential data?

   1. graphs and networks

   2. ordered

   3. spatial and image

   4. records

   5. abstract

3. What type of dataset stores maps or imagery?

   1. graphs and networks

   2. ordered

   3. spatial and image

   4. records

   5. abstract

4. What type of data has a rank, such as size (small, medium, large) or grades (A, B, C, D, F)?

   1. nominal

   2. binary

   3. ordinal

   4. interval

   5. ratio