Performance Testing

1)From the provided statement in relation to design pattern specified as which of the following statement is true?
  a)Design pattern are solutions to general problem that software developments faced during software development.
  b)Design pattern represented the best practices used by experienced object-oriented software developers.
  c)All these
  d)None of these
2)A software design pattern is a reusable solution to commonly occurring problem within a given context in software design . which of the following is correct list of classification of design patterns?
  a)Executional , structural and Behavioral pattern.
  b)Creational, structural and Behavioral patterns.
  c)Creational, Executional and Behavioral patterns.
  d)Either 1 and 2.
3)Design pattrerns may be viewed as a strctured approch to computer programming intermediate between the levels of a programming paradiagm and a concreate algorithm. which of the following is correct about creational design patterns?
   a)These design patterns provide a way to create objects while hiding the creation logic , rather than instantiation objects directly usign oprearor.
  b)Thease design patterns are specifically concerned with communication between objects.
  c)Both 1 & 2
  d) None of these
  4)Reusing design patterns help to prevent subtle issues that can cause major problems. which of the following describes the Transfer object pattern correctly?
  a)In this pattern an interface is responsible for creating a factory of related objects without explicity specifying their clases.
   b)This pattern creates object without exposing the creation logic to client and refer to newly created object using a common interface.
  c)This pattern is used when we want to press data with multiple attributes in one short from client to server.
  d)Both 1 & 2.
5)In order to achive flexibility, design patterns usully introduse additional levels of indirection which of  the following describes the null object pattern correctly.
 a) In this pattern , a null object replaces check of null object instance