ELECTRICAL MACHINES QUIZ

You may specify an object identifier with only one unique tag name.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

ODL supports the abstract keyword for classes and operations.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

A relationship should be specified how in the ODL?

One direction starting with the first class

Both directions

One direction starting with the second class

Neither direction

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is true concerning an ODBMS?

They are most useful for traditional, two-dimensional database table applications.

All of these

They are overtaking RDBMS for all applications.

They have the ability to store complex data types on the Web.

TRUE ANSWER : ?
YOUR ANSWER : ?

If you know all the possible values that an attribute can have, you can enumerate those values in ODL.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

A collection of literals or object types is called a bag.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an ordered collection of elements of the same type?

List

Bag

Set

Dictionary

TRUE ANSWER : ?
YOUR ANSWER : ?

Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an unordered collection of elements that may contain duplicates?

Set

Bag

Dictionary

List

TRUE ANSWER : ?
YOUR ANSWER : ?

↑