| 1 |
An disadvantage of partitioning is: |
- A. Complexity
- B. Extra space and update time
- C. Inconsistent access speed
- D. All
|
| 2 |
Object used to retrieve data from database is called: |
- A. Forms
- B. Repons
- C. Queries
- D. Tables
|
| 3 |
Which of the following activities are involved in data analysis? |
- A. Data flow diagram
- B. Decision Tables
- C. Decision Trees
- D. All
|
| 4 |
Which key does not have uniqueness property? |
- A. Candidate
- B. Foreign key
- C. Primary key
- D. Secondary key
|
| 5 |
Which of the following is used to associate entities with one another? |
- A. Entity
- B. Attribute
- C. Identifier
- D. Relationship
|
| 6 |
Which of the following keys us not unique: |
- A. Candidate key
- B. Forein key
- C. Primary key
- D. Secondary key
|
| 7 |
|
- A. mendatory
- B. optional
- C. may be many
- D. none of theses
|
| 8 |
An attribute is also known as: |
- A. Table
- B. Field
- C. Row
- D. Relation
|
| 9 |
_______________ refers to a method of database distribution in which different portions of database reside at different nodes in the network. |
- A. Spliting
- B. Partitioning
- C. Replication
- D. Dividing
|
| 10 |
Which of the following is NOT included in the definition of an entity? |
- A. Person
- B. Object
- C. Concept
- D. Action
|