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Q:

To eliminate definition duplication, XML Schemas define:

A) an intersection table. B) global elements.
C) a normalized definition table. D) None of the above is correct.
 
Answer & Explanation Answer: B) global elements.

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Q:

With this type of SQL Server cursor concurrency no lock is obtained until the user updates the data.

A) READ_ONLY B) SCROLL_LOCK
C) OPTIMISTIC D) PESSIMISTIC
 
Answer & Explanation Answer: C) OPTIMISTIC

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Q:

SQL Server program code that is executed instead of an SQL command that needs to be processed is called

A) INSTEAD OF trigger. B) BEFORE trigger.
C) AFTER trigger. D) BEGIN trigger.
 
Answer & Explanation Answer: A) INSTEAD OF trigger.

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Q:

 Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?

A) Nonrepeatable read B) Phantom read
C) Dirty read D) Consistent read
 
Answer & Explanation Answer: A) Nonrepeatable read

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Q:

 For what purposes are views used?

A) To hide rows only B) To hide columns only
C) To hide complicated SQL statements only D) All of the above are uses for SQL views.
 
Answer & Explanation Answer: D) All of the above are uses for SQL views.

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Q:

Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?

A) Supertype entity B) Subtype entity
C) Archetype entity D) Instance entity
 
Answer & Explanation Answer: A) Supertype entity

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Q:

Which of the following indicates the maximum number of entities that can be involved in a relationship?

A) Minimum cardinality B) Maximum cardinality
C) ERD D) Greater Entity Count (GEC)
 
Answer & Explanation Answer: B) Maximum cardinality

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Q:

 In the relational model, relationships between relations or tables are created by using:

A) composite keys. B) determinants.
C) candidate keys. D) foreign keys.
 
Answer & Explanation Answer: D) foreign keys.

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