Discussion
Home ‣ Database ‣ The Database Environment Comments
- Question
A database application can perform which of the following activities?
Options- A. Add records
- B. Read records
- C. Update records
- D. All of the above.
- Correct Answer
- All of the above.
- 1. Metadata enables database designers and users to do all of the following except:
Options- A. sample data.
- B. understand what data exist.
- C. what the fine distinctions are between similar data items.
- D. what the data mean. Discuss
- 2. Which of the following types of databases are the most common?
Options- A. Personal
- B. Workgroup
- C. Department
- D. Enterprise Discuss
- 3. Which of the following is true for a relational database?
Options- A. Data is represented by tables.
- B. It is difficult to access data.
- C. Complex programs have to be written for simple queries.
- D. All of the above. Discuss
- 4. A database management system (DBMS) is a:
Options- A. hardware system used to create, maintain, and provide controlled access to a database.
- B. hardware system used to create, maintain, and provide uncontrolled access to a database.
- C. software system used to create, maintain, and provide controlled access to a database.
- D. software system used to create, maintain, and provide uncontrolled access to a database. Discuss
- 5. Duplicate data often results in loss of data integrity because:
Options- A. the data formats may be inconsistent.
- B. data values may not agree.
- C. Both A & B.
- D. Neither A & B. Discuss
- 6. A binary relationship cannot be which of the following?
Options- A. One-to-One
- B. One-to-Many
- C. Many-to-Many
- D. Zero-to-Zero Discuss
- 7. A ternary relationship involves how many entities?
Options- A. 3 or less
- B. 3
- C. More than 3
- D. 3 or more Discuss
- 8. A good identifier is which of the following?
Options- A. One that can change over time
- B. Can be null
- C. One that is unique
- D. Be intelligent Discuss
- 9. An entity name should be which of the following?
Options- A. A singular noun
- B. Specific to the organization
- C. Concise
- D. All of the above. Discuss
- 10. A good business rule is which of the following?
Options- A. Declarative
- B. Imprecise
- C. Redundant
- D. Compound Discuss
The Database Environment problems
Search Results
Correct Answer: sample data.
Correct Answer: Department
Correct Answer: Data is represented by tables.
Correct Answer: software system used to create, maintain, and provide controlled access to a database.
Correct Answer: Both A & B.
Correct Answer: Zero-to-Zero
Correct Answer: 3
Correct Answer: One that is unique
Correct Answer: All of the above.
Correct Answer: Declarative
Comments
There are no comments.More in Database:
Programming
Copyright ©CuriousTab. All rights reserved.