User Defined Data Types

Question 1

User defined data types

Answer 1

• To create a new data type
• To allow data types not available in a programming language to be constructed.

Question 2

Advantages of UDTs

Answer 2

• Ability to self-document user data structures
• Let’s user to group data of different types in a single variable

Question 3

Disadvantage of UDT

Answer 3

• Only possible if a programming language offers support for the construct

Question 4

Define non composite data types

Answer 4

A single data type test does not reference any other data type

Question 5

Enumerated data type

Answer 5

• Defines a list of possible values.

Question 6

Pointer data type

Answer 6

Used to reference a memory location

Question 7

Composite user defined data type

Answer 7

• Data type defined from reference to at least one data type.

Question 8

Record data type

Answer 8

• Collection of related values with different data types.

Question 9

Set data type

Answer 9

• Supports mathematical operations

Question 10

Class

Answer 10

Gives the properties and methods for an object