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31 / 120
Aggregation (encapsulation) relationships are represented in the UML notation by:
Anesting of classes
Blines with a solid diamond at one end
Clines with a hollow diamond at one end
Dlines with an arrow at one end
Elines without an arrow at either end
Answer: Option C
Explanation:lines with a hollow diamond at one end
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32 / 120
A programmer is designing a class to encapsulate the information about an inventory item.
A JavaBeans component is needed to do this.
The InventoryItem class has private instance variables to store the item information :
private int itemId;
Which method signature follows the JavaBeans naming standards for modifying the itemId instance variable ?
AitemId(int itemId)
Bupdate(int itemId)
CsetItemId(int itemId)
DmutateItemId(int itemI
EupdateItemId(int itemId)
Answer: Option C
Explanation:Here is no explanation for this answer
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33 / 120
Which of the following is true for Use case model?
AInclude use cases are mandatory, exclude use cases are optional
BExclude use cases are mandatory, include use cases are optional
CUse case model does not use any include or exclude use cases
DNone of the above
Answer: Option A
Explanation:Include use cases are mandatory, exclude use cases are optional
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34 / 120
Which of the following are the valid relationships in Use Case Diagram
AGeneralization
BInclude
CExtend
DAll of the mentioned
Answer: Option D
Explanation:All of the mentioned
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35 / 120
Which of the following is the original purpose of SQL?
ATo specify the syntax and semantics of SQL data definition language
BTo specify the syntax and semantics of SQL manipulation language
CTo define the data structures
DAll of the above.
Answer: Option D
Explanation:All of the above.
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36 / 120
The wildcard in a WHERE clause is useful when?
AAn exact match is necessary in a SELECT statement.
BAn exact match is not possible in a SELECT statement.
CAn exact match is necessary in a CREATE statement.
DAn exact match is not possible in a CREATE statement.
Answer: Option B
Explanation:Wildcards are basically for pattern matching.
Select * from emp where ename like = 'A%'; - Lists all emps with starting
Likewise % (For ignoring any number of characters) and _(Only one character).
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37 / 120
A view is which of the following?
AA virtual table that can be accessed via SQL commands
BA virtual table that cannot be accessed via SQL commands
CA base table that can be accessed via SQL commands
DA base table that cannot be accessed via SQL commands
Answer: Option A
Explanation:A view is a virtual table always created on a table, that does not hold any data, rather on every select the data is been fetched from the base table.
All operations on view (Only DMLs) will be reflecting on the base table. Only DML operations are allowed on Views.
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38 / 120
In the UML notation a class can be represented by :
AA rectangular box with the name of the class in the box
BA rectangular box with the name of the object, a : and the class name that the object belongs to
CA rectangular box with the class name prefixed by the word "class"
DA thin vertical line with key method calls shown as outward arrows
EA rectangular box with an inserted dashed box on the top right corner.
Answer: Option A
Explanation:A rectangular box with the name of the class in the box
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39 / 120
select ID, GPA from student grades order by GPA______. In order to give only 10 rank on the whole we should use:
ALimit 10
BUpto 10
COnly 10
DMax 10
Answer: Option B
Explanation:Upto 10
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40 / 120
ITG stands for
Ainstantaneous test group
Bintegration testing group
Cindividual testing group
Dindependent test group
Answer: Option D
Explanation:The role of an independent test group (ITG) is to remove the inherent problems associated with letting the builder test the thing that has been built.
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