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The Internet Database Environment
See What Others Are Saying!
Question
Client-side extensions:
Options
A. add functionality to the server.
B. add functionality to the browser.
C. add functionality to the firewall.
D. add functionality to the network.
Correct Answer
add functionality to the browser.
More questions
1. If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.
Options
A. the primary key
B. any alternate key
C. a surrogate key
D. a foreign key
Show Answer
Scratch Pad
Discuss
Correct Answer: the primary key
2. Multiple inheritance allows a class to inherit features from more than one superclass.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. A database design may be based on existing data.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
4. If both data and database administration exist in an organization, the database administrator is responsible for which of the following?
Options
A. Data modeling
B. Database design
C. Metadata
D. All of the above.
Show Answer
Scratch Pad
Discuss
Correct Answer: Database design
5. The degree of a relationship refers to the number of entity classes in the relationship.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
6. After a table has been created, its structure can be modified using the SQL command:
Options
A. UPDATE TABLE [
TableName
].
B. MODIFY TABLE [
TableName
].
C. ALTER TABLE [
TableName
].
D. CHANGE TABLE [
TableName
].
Show Answer
Scratch Pad
Discuss
Correct Answer: ALTER TABLE [
TableName
].
7. Which statement about sequences is not true?
Options
A. A sequence is an object that generates a sequential series of unique numbers.
B. Sequences are most often used to provide values for surrogate keys.
C.
NextVal
and
CurrVal
are both sequence methods.
D. Sequences guarantee valid surrogate key values.
Show Answer
Scratch Pad
Discuss
Correct Answer: Sequences guarantee valid surrogate key values.
8. Of the three ways to create an Oracle database, which one is the easiest and most recommended?
Options
A. Using the Oracle Database Configuration Assistant.
B. Using the Oracle-supplied database creation procedures.
C. Using the SQL CREATE DATABASE command.
D. None of the above is correct.
Show Answer
Scratch Pad
Discuss
Correct Answer: Using the Oracle Database Configuration Assistant.
9. JDBC stands for:
Options
A. Java Database Connectivity
B. Java Database Components
C. Java Database Control
D. None of the above is correct.
Show Answer
Scratch Pad
Discuss
Correct Answer: Java Database Connectivity
10. What is the type of Oracle backup in which all uncommitted changes have been removed from the datafiles?
Options
A. Full backup
B. Consistent backup
C. Inconsistent backup
D. Differential backup
Show Answer
Scratch Pad
Discuss
Correct Answer: Consistent backup
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