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431. Command Pattern किस Concept पर आधारित है?

[A] Encapsulate Request as Object

[B] Database Pattern

[C] Authentication Pattern

[D] Routing Pattern

431. What is Command Pattern based on?

[A] Encapsulate Request as Object

[B] Database Pattern

[C] Authentication Pattern

[D] Routing Pattern

सही उत्तर: Encapsulate Request as Object

व्याख्या: Requests को Objects के रूप में Represent करता है।

Correct Answer: Encapsulate Request as Object

Explanation: Represents requests as objects.

432. Builder Pattern का उपयोग कब किया जाता है?

[A] Complex Objects Create करने के लिए

[B] Simple Variables बनाने के लिए

[C] Database Query के लिए

[D] Routing के लिए

432. When is Builder Pattern used?

[A] To Create Complex Objects

[B] To Create Simple Variables

[C] For Database Queries

[D] For Routing

सही उत्तर: Complex Objects Create करने के लिए

व्याख्या: Step-by-Step Object Creation के लिए उपयोगी है।

Correct Answer: To Create Complex Objects

Explanation: Useful for step-by-step object creation.

433. Prototype Pattern का मुख्य उद्देश्य क्या है?

[A] Object Clone करना

[B] Database Copy करना

[C] Authentication

[D] Routing

433. What is the main purpose of Prototype Pattern?

[A] Clone Objects

[B] Copy Database

[C] Authentication

[D] Routing

सही उत्तर: Object Clone करना

व्याख्या: Existing Object की Copy Create करता है।

Correct Answer: Clone Objects

Explanation: Creates copies of existing objects.

434. Chain of Responsibility Pattern क्या करता है?

[A] Request को Multiple Handlers में Pass करता है

[B] Database Backup

[C] Caching

[D] Compilation

434. What does Chain of Responsibility Pattern do?

[A] Passes Requests Through Multiple Handlers

[B] Database Backup

[C] Caching

[D] Compilation

सही उत्तर: Request को Multiple Handlers में Pass करता है

व्याख्या: हर Handler Request को Process या Forward कर सकता है।

Correct Answer: Passes Requests Through Multiple Handlers

Explanation: Each handler can process or forward the request.

435. Mediator Pattern का मुख्य लाभ क्या है?

[A] Loose Coupling

[B] Tight Coupling

[C] Database Access

[D] Caching

435. What is the main benefit of Mediator Pattern?

[A] Loose Coupling

[B] Tight Coupling

[C] Database Access

[D] Caching

सही उत्तर: Loose Coupling

व्याख्या: Objects के बीच Direct Dependencies कम होती हैं।

Correct Answer: Loose Coupling

Explanation: Reduces direct dependencies between objects.

436. Dependency Injection किस SOLID Principle से संबंधित है?

[A] Dependency Inversion Principle

[B] Single Responsibility Principle

[C] Open Closed Principle

[D] Interface Segregation Principle

436. Dependency Injection is related to which SOLID principle?

[A] Dependency Inversion Principle

[B] Single Responsibility Principle

[C] Open Closed Principle

[D] Interface Segregation Principle

सही उत्तर: Dependency Inversion Principle

व्याख्या: DI DIP को Implement करने का सामान्य तरीका है।

Correct Answer: Dependency Inversion Principle

Explanation: DI is a common way to implement DIP.

437. Abstract Factory Pattern का उपयोग किसलिए होता है?

[A] Related Objects Families Create करने के लिए

[B] Database Access

[C] Routing

[D] Logging

437. What is Abstract Factory Pattern used for?

[A] Create Families of Related Objects

[B] Database Access

[C] Routing

[D] Logging

सही उत्तर: Related Objects Families Create करने के लिए

व्याख्या: Related Objects की Creation को Abstract करता है।

Correct Answer: Create Families of Related Objects

Explanation: Abstracts creation of related objects.

438. Visitor Pattern का मुख्य उद्देश्य क्या है?

[A] Object Structure में New Operations Add करना

[B] Database Query

[C] Authentication

[D] Caching

438. What is the main purpose of Visitor Pattern?

[A] Add New Operations to Object Structures

[B] Database Query

[C] Authentication

[D] Caching

सही उत्तर: Object Structure में New Operations Add करना

व्याख्या: Classes बदले बिना नई Functionality जोड़ता है।

Correct Answer: Add New Operations to Object Structures

Explanation: Adds new functionality without modifying classes.

439. Template Method Pattern क्या Define करता है?

[A] Algorithm Skeleton

[B] Database Schema

[C] Routing Rules

[D] Cache Strategy

439. What does Template Method Pattern define?

[A] Algorithm Skeleton

[B] Database Schema

[C] Routing Rules

[D] Cache Strategy

सही उत्तर: Algorithm Skeleton

व्याख्या: Subclasses कुछ Steps Override कर सकती हैं।

Correct Answer: Algorithm Skeleton

Explanation: Subclasses can override certain steps.

440. Proxy Pattern का उपयोग किसलिए होता है?

[A] Object Access Control

[B] Database Backup

[C] Compilation

[D] Migration

440. What is Proxy Pattern used for?

[A] Object Access Control

[B] Database Backup

[C] Compilation

[D] Migration

सही उत्तर: Object Access Control

व्याख्या: Proxy Original Object तक Access को Control करता है।

Correct Answer: Object Access Control

Explanation: Controls access to the original object.