Stats for quiz: Hibernate Quiz

Quiz stats

User	Date	time taken	points	Result	P/F
	Fri 03 of Sep., 2010 15:29 IST	464 secs	5 (25.00%)	(Details)	Failed
	Sun 29 of Aug., 2010 07:49 IST	9 secs	1 (5.00%)	(Details)	Failed
	Thu 05 of Aug., 2010 02:57 IST	67 secs	6 (30.00%)	(Details)	Failed
	Mon 02 of Aug., 2010 14:04 IST	140 secs	2 (10.00%)	(Details)	Failed
	Thu 29 of July, 2010 03:48 IST	149 secs	7 (35.00%)	(Details)	Failed
	Wed 14 of July, 2010 17:33 IST	24 secs	0 (0.00%)		Failed
	Tue 13 of July, 2010 14:37 IST	221 secs	12 (60.00%)	(Details)	Failed
	Mon 05 of July, 2010 21:59 IST	6 secs	0 (0.00%)		Failed
	Mon 28 of June, 2010 06:31 IST	113 secs	2 (10.00%)	(Details)	Failed
	Fri 18 of June, 2010 12:39 IST	445 secs	10 (50.00%)	(Details)	Failed
	Wed 12 of May, 2010 12:41 IST	185 secs	5 (25.00%)	(Details)	Failed
	Mon 03 of May, 2010 15:42 IST	406 secs	11 (55.00%)	(Details)	Failed
	Mon 03 of May, 2010 14:18 IST	200 secs	11 (55.00%)	(Details)	Failed
	Thu 29 of Apr., 2010 03:17 IST	710 secs	14 (70.00%)	(Details)	Failed
	Wed 21 of Apr., 2010 22:26 IST	749 secs	8 (40.00%)	(Details)	Failed
	Wed 21 of Apr., 2010 08:24 IST	265 secs	14 (70.00%)	(Details)	Failed
	Tue 06 of Apr., 2010 15:25 IST	25 secs	0 (0.00%)		Failed
	Fri 19 of Feb., 2010 06:06 IST	326 secs	10 (50.00%)	(Details)	Failed
	Tue 16 of Feb., 2010 16:04 IST	21 secs	0 (0.00%)	(Details)	Failed

Stats for this quiz Questions

Question: ORM stands for

Option	Votes	Average
Object Relational Matching	2	12.50%
Object Relational Mapping	14	87.50%

Question: Which of the following is not an ACID property

Option	Votes	Average
Atomicity	3	27.27%
Dependency	7	63.64%
Isolation	1	9.09%

Question: hibernate.cfg.xml is used for

Option	Votes	Average
Building the mapping between class and table	3	18.75%
Contains the configuration like database details	13	81.25%

Question: One of the following in not a transactional isolation issue

Option	Votes	Average
No read	3	30.00%
Lost Update	4	40.00%
Unrepeatable read	2	20.00%
Dirty Read	1	10.00%

Question: Consider two class Company and Address.

Option	Votes	Average
No need to map these classes and Entity or value	5	45.45%
Company can be an entity and Address can be value.	5	45.45%
Company can be a value and Address can be an entity	1	9.09%

Question: Which of the following is the strongest transaction isolation level

Option	Votes	Average
Serializable	5	45.45%
Repeatable Read	1	9.09%
Read Committed	4	36.36%
Read Uncommitted	1	9.09%

Question: Identifier of an entity is denoted by

Option	Votes	Average
@Key	1	7.14%
@Id	12	85.71%
@Identifier	1	7.14%

Question: Versioning is done by using which annotation marker

Option	Votes	Average
@Version	7	58.33%
@Release	4	33.33%
@Level	1	8.33%

Question: The most preferred way of defining primary key for a table is by using

Option	Votes	Average
Composite Key	6	46.15%
Natural Key	5	38.46%
Surrogate Key	1	7.69%
Business Key	1	7.69%

Question: If the property of a class should not take part in persistence mechanism than the property should be marked as

Option	Votes	Average
@Transient	10	83.33%
@Temporary	1	8.33%
@Enum	1	8.33%

Question: Which of the following is not a way to map the inheritance

Option	Votes	Average
Single Table per class hierarchy	2	18.18%
Object Relational Mapping	8	72.73%
Table per concrete class	1	9.09%

Question: The disadvantage for using Single table per class hierarchy

Option	Votes	Average
Multiple tables to deal with.	1	8.33%
Complex to handle polymorphic relationship.	9	75.00%
Performance is not good.	2	16.67%

Question: In ManyToMany relationship, the link table is exposed as an entity

Option	Votes	Average
false	5	41.67%
true	7	58.33%

Question: Hibernate does the dirty checking when the entity is in the following state

Option	Votes	Average
Detached	8	66.67%
Persistent	2	16.67%
Transient	2	16.67%

Question: The id value of a transient entity, if the type of id is Long is

Option	Votes	Average
null	4	36.36%
not null	3	27.27%
arbitrary	4	36.36%

Question: A transient entity referenced by a persistent entity can become persistent if the cascade option is cascade all

Option	Votes	Average
true	6	54.55%
false	5	45.45%

Question: After the persistent context is closed the entity goes in the following state

Option	Votes	Average
Detached	6	54.55%
Removed	3	27.27%
Persistent	2	18.18%

Question: In a persistence context how many maximum object representing a particular database row can exist

Option	Votes	Average
A new object is created every time it is required	7	63.64%
one	4	36.36%

Question: When all objects need to be removed from the persistence context, the call done is session is

Option	Votes	Average
remove(object)	3	27.27%
clear()	6	54.55%
evict(object)	2	18.18%

Question: In default flush mode, the flush is not called when

Option	Votes	Average
Commit of a transaction	4	40.00%
when flush is called explicitly	1	10.00%
Before a query is executed	5	50.00%