| 1 |
In an E-R diagram, a rectangle represents: |
- A. Entity
- B. Attributes
- C. Relationship
- D. None
|
| 2 |
Which of the following are ingredients of data modeling? |
- A. Entities
- B. Attributes
- C. Relationship
- D. All
|
| 3 |
An entity related to itself in an ERD model refers to |
- A. recursive relationship
- B. one-to-many relationship
- C. many to many relationship
- D. on to one relationship
|
| 4 |
An disadvantage of partitioning is: |
- A. Complexity
- B. Extra space and update time
- C. Inconsistent access speed
- D. All
|
| 5 |
Which of the following is used to associate entities with one another? |
- A. Entity
- B. Attribute
- C. Identifier
- D. Relationship
|
| 6 |
Getch stands for: |
- A. Go character
- B. Give character
- C. Get character
- D. All of these
|
| 7 |
Which of the following activities are involved in data analysis? |
- A. Data flow diagram
- B. Decision Tables
- C. Decision Trees
- D. All
|
| 8 |
Customers,cars and parts are examples of: |
- A. Entities
- B. Attributes
- C. Cardinals
- D. Relashionships
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| 9 |
An attribute is also known as: |
- A. Table
- B. Field
- C. Row
- D. Relation
|
| 10 |
In hybrid distribution, what types of fragments are stored at only one site? |
- A. Critical fragments
- B. Non-critical fragments
- C. Critical and non-critical fragments
- D. Only large fragments
|