| 1 |
Format specifier starts with the symbol |
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| 2 |
Data type int contain bytes: |
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| 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
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| 4 |
_______________ 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
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| 5 |
Which key does not have uniqueness property? |
- A. Candidate
- B. Foreign key
- C. Primary key
- D. Secondary key
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| 6 |
An advantage of partitioning is: |
- A. Efficiency
- B. Extra space
- C. Reliabilty
- D. Accuracy
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| 7 |
Which of the following is NOT included in the definition of an entity? |
- A. Person
- B. Object
- C. Concept
- D. Action
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| 8 |
An disadvantage of partitioning is: |
- A. Complexity
- B. Extra space and update time
- C. Inconsistent access speed
- D. All
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| 9 |
Which of the following is used to associate entities with one another? |
- A. Entity
- B. Attribute
- C. Identifier
- D. Relationship
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| 10 |
Which of the following is basic data distribution strategy? |
- A. Centralized
- B. Partitioned
- C. Replication
- D. All
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