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Question 26 :

What is "access control" ?

Answer :

The methods by which interactions with resources are limited to collections of users or programs for the purpose of enforcing integrity, confidentiality, or availability constraints.

Question 27 :

What is "ACID" ?

Answer :

The acronym for the four properties guaranteed by transactions: atomicity, consistency, isolation, and durability.

Question 28 :

What is "activation" ?

Answer :

The process of transferring an enterprise bean from secondary storage to memory. (See passivation.)

Question 29 :

What is "anonymous access" ?

Answer :

Accessing a resource without authentication.

Question 30 :

What is class ?

Answer :

In the Java programming language, a type that defines the implementation of a particular kind of object. A class definition defines instance and class variables and methods, as well as specifying the interfaces the class implements and the immediate superclass of the class. If the superclass is not explicitly specified, the superclass will implicitly be Object.