MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Database
Object Oriented Database
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Q.1
Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.
True
False
Q.2
A collection of literals or object types is called a bag.
True
False
Q.3
An attribute's value is either a literal or an object identifier.
True
False
Q.4
Database objects are almost always transient.
True
False
Q.5
An attribute's value is always literal.
True
False
Q.6
Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).
True
False
Q.7
If you know all the possible values that an attribute can have, you can enumerate those values in ODL.
True
False
Q.8
You may specify an object identifier with only one unique tag name.
True
False
Q.9
In ODL, you specify an operation using parentheses after its name.
True
False
Q.10
An ordered collection of elements of the same type are called sets.
True
False
Q.11
The object definition language (ODL) is which of the following?
Used to develop logical schemas
A data definition language for OODB
A method to implement a logical schema
All of the above.
Q.12
An atomic literal is which of the following?
Strings
Boolean
Long
All of the above.
Q.13
Which of the following is true concerning an ODBMS?
They have the ability to store complex data types on the Web.
They are overtaking RDBMS for all applications.
They are most useful for traditional, two-dimensional database table applications.
All of the above.
Q.14
ODL supports the abstract keyword for classes and operations.
True
False
Q.15
The ODMG Object Model requires that a relationship be specified in both directions.
True
False
Q.16
Before specifying a key for a class, you must specify its extent.
True
False
Q.17
The Object Model supports different literal types, but does not support atomic literals, collection literals, and structured literals.
True
False
Q.18
Which of the following is true concerning the following statement: class Manager extends Employee
Manager is a concrete class and a superclass.
Manager is a concrete class and a subclass.
Manager is an abstract class and a superclass.
Manager is an abstract class and a subclass.
Q.19
Which of the following is an ordered collection of elements of the same type?
Set
Bag
List
Dictionary
Q.20
A relationship should be specified how in the ODL?
One direction starting with the first class
One direction starting with the second class
Neither direction
Both directions
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page