Technology Questions

bcoz interface does not contains any initializers and constructors to initialize its data members.

Monkey testing is a type of Black Box Testing used mostly at the Unit Level. In this tester enter the data in any format and check the software is not crashing. In this testing we use Smart monkey and Dumb monkey.

- Smart monkeys are used for load and stress testing, they will help in finding the bugs. They are very expensive to develop.

- Dumb monkey, they are important for basic testing. They help in finding those bugs which are having high severity. Dumb monkey are less expensive as compare to Smart monkeys.

Example: In phone number filed Symbols are entered.

Coalescing is only valid for dictionary-managed tablespaces and de-fragments space by combining neighboring free extents into large single extents.

The diamond problem is an ambiguity that can occur when a class multiply inherits from two classes that both descend from a common super class

A foreign key is a reference to another table. It is used to establish relationships between tables. For example, relationship between employee and professor table. One employee can have multiple professors. The Primary key of employee becomes foreign key of professor.
Example:
create table employee ( id number NOT NULL, professor_id NOT NULL, Name varchar(200) Constraint prim_id Foreign key(id) references professor(professor_id) );

.NET does not support multiple inheritance directly because in .NET, a class cannot inherit from more than one class. .NET supports multiple inheritance through interfaces.

The flow chart gives a clear graphical representation of an implemented process. This makes the system simple to understand for all persons involved in the project. 

DriverManager is a class in java.sql package. It is the basic service for managing a set of JDBC drivers.