Tag: web technology

Questions Related to web technology

Milk appears to be White in colour because:
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  1. absorbs light

  2. contains proteins

  3. contains sugar

  4. reflects the incident light

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Correct Option: D

WRONG QUESTION IGNORE
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  1. The code will generate a run time error

  2. undefined, Local Date & Time.

  3. The code will generate a compile time error.

  4. Universal Date & Time, Local Date & Time.

  5. Local Date & Time & Local Date & Time

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Correct Option: D

What does session.createQuery("Query").scroll() return ?
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  1. ListResultSet

  2. ResultSet

  3. ScrollableResultSet

  4. ScrollableResult

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Correct Option: D
Explanation:

To understand what session.createQuery("Query").scroll() returns, the user needs to have understanding of Hibernate, Java and SQL.

Explanation of each option:

A. ListResultSet: This option is incorrect because ListResultSet is not a valid class in Hibernate.

B. ResultSet: This option is incorrect because ResultSet is a class in Java that represents a table of data representing a database result set, and it is not returned by the scroll() method in Hibernate.

C. ScrollableResultSet: This option is incorrect because ScrollableResultSet is not a valid class in Hibernate.

D. ScrollableResult: This option is correct. The scroll() method in Hibernate returns a ScrollableResult object, which is used to traverse a result set. It provides methods to move the cursor forward and backward, as well as methods to retrieve the current row or a subset of rows.

Therefore, the answer is: D. ScrollableResult.

How are the individual properties mapped to different table columns?
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  1. By using multiple elements inside the element.

  2. By using multiple elements inside the element.

  3. By using multiple elements inside the element.

  4. none of the above

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Correct Option: A

What are the most common methods of configuring Hibernate?
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  1. By placing hibernate.properties file in the classpath.

  2. Including elements in hibernate.cfg.xml in the classpath.

  3. both 1 and 2

  4. none of the above

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Correct Option: C

Is it possible to declare mappings for multiple classes in one mapping file?
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  1. True

  2. False

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Correct Option: B

How to create SessionFactory ?
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  1. configuration.buildSessionFactory();

  2. configuration.createSessionFactory();

  3. configuration.createNewSessionFactory();

  4. none of the above

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Correct Option: A

How to get a session object ?
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  1. SessionFactory.getSession();

  2. SessionFactory.openSession();

  3. SessionFactory.get();

  4. (session)SessionFactory.getObject();

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Correct Option: B

What is the root level element in a hibernate mapping file?
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  4. none of the above

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Correct Option: A

Which statement is correct ?

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  1. A Session will not obtain a JDBC Connection (or a Datasource) unless it is needed

  2. A Session will obtain a JDBC Connection (or a Datasource) on object create

  3. A Session has no relation with JDBC Connection (or a Datasource)

  4. none of the above

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Correct Option: A