[ PHP Programming MCQS ]

झारखंड में आयोजित होने वाली JPSC, JSSC, JET, झारखंड पुलिस भर्ती परीक्षा आदि के लिए उपयोगी सामान्य अध्ययन।

[ PHP Programming MCQS ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.

471. Decorator Pattern का उद्देश्य क्या है?

[A] Add Behavior Dynamically

[B] Delete Objects

[C] Create Database

[D] Manage Sessions

471. What is the purpose of Decorator Pattern?

[A] Add Behavior Dynamically

[B] Delete Objects

[C] Create Database

[D] Manage Sessions

सही उत्तर: Add Behavior Dynamically

व्याख्या: Object functionality को runtime पर extend करता है।

Correct Answer: Add Behavior Dynamically

Explanation: Extends object functionality dynamically.

472. Adapter Pattern का मुख्य उपयोग क्या है?

[A] Interface Compatibility

[B] Session Sharing

[C] Caching

[D] File Storage

472. What is the main use of Adapter Pattern?

[A] Interface Compatibility

[B] Session Sharing

[C] Caching

[D] File Storage

सही उत्तर: Interface Compatibility

व्याख्या: Incompatible interfaces को साथ काम करने देता है।

Correct Answer: Interface Compatibility

Explanation: Allows incompatible interfaces to work together.

473. Facade Pattern का उद्देश्य क्या है?

[A] Simplified Interface

[B] Complex Interface

[C] Database Backup

[D] Session Management

473. What is the purpose of Facade Pattern?

[A] Simplified Interface

[B] Complex Interface

[C] Database Backup

[D] Session Management

सही उत्तर: Simplified Interface

व्याख्या: Complex subsystem के लिए simple interface प्रदान करता है।

Correct Answer: Simplified Interface

Explanation: Provides a simple interface to a complex subsystem.

474. Prototype Pattern किसलिए उपयोग किया जाता है?

[A] Object Cloning

[B] Object Deletion

[C] Database Replication

[D] Session Cloning

474. What is Prototype Pattern used for?

[A] Object Cloning

[B] Object Deletion

[C] Database Replication

[D] Session Cloning

सही उत्तर: Object Cloning

व्याख्या: Existing object clone करके नए objects बनाता है।

Correct Answer: Object Cloning

Explanation: Creates new objects by cloning existing ones.

475. Visitor Pattern का मुख्य लाभ क्या है?

[A] Add Operations Without Modifying Classes

[B] Increase Coupling

[C] Reduce Security

[D] Manage Sessions

475. What is the main benefit of Visitor Pattern?

[A] Add Operations Without Modifying Classes

[B] Increase Coupling

[C] Reduce Security

[D] Manage Sessions

सही उत्तर: Add Operations Without Modifying Classes

व्याख्या: Classes बदले बिना नए operations जोड़ सकते हैं।

Correct Answer: Add Operations Without Modifying Classes

Explanation: Adds new operations without changing classes.

476. Chain of Responsibility Pattern का उद्देश्य क्या है?

[A] Pass Request Through Handlers

[B] Delete Requests

[C] Store Requests

[D] Encrypt Requests

476. What is the purpose of Chain of Responsibility Pattern?

[A] Pass Request Through Handlers

[B] Delete Requests

[C] Store Requests

[D] Encrypt Requests

सही उत्तर: Pass Request Through Handlers

व्याख्या: Request कई handlers से होकर गुजर सकती है।

Correct Answer: Pass Request Through Handlers

Explanation: Allows requests to pass through multiple handlers.

477. State Pattern किस समस्या का समाधान करता है?

[A] Behavior Based on State

[B] Database Scaling

[C] File Compression

[D] Session Creation

477. What problem does State Pattern solve?

[A] Behavior Based on State

[B] Database Scaling

[C] File Compression

[D] Session Creation

सही उत्तर: Behavior Based on State

व्याख्या: Object का behavior उसकी current state पर निर्भर करता है।

Correct Answer: Behavior Based on State

Explanation: Changes behavior based on object state.

478. Template Method Pattern का मुख्य उद्देश्य क्या है?

[A] Define Algorithm Skeleton

[B] Create Sessions

[C] Store Files

[D] Optimize Queries

478. What is the main purpose of Template Method Pattern?

[A] Define Algorithm Skeleton

[B] Create Sessions

[C] Store Files

[D] Optimize Queries

सही उत्तर: Define Algorithm Skeleton

व्याख्या: Algorithm structure define करता है जबकि steps subclasses implement करती हैं।

Correct Answer: Define Algorithm Skeleton

Explanation: Defines algorithm structure while subclasses implement steps.

479. PHP JIT का पूरा नाम क्या है?

[A] Just In Time Compiler

[B] Java Integration Tool

[C] JSON Interface Technology

[D] Job Instruction Translator

479. What is the full form of PHP JIT?

[A] Just In Time Compiler

[B] Java Integration Tool

[C] JSON Interface Technology

[D] Job Instruction Translator

सही उत्तर: Just In Time Compiler

व्याख्या: PHP 8 में introduced feature जो runtime optimization करता है।

Correct Answer: Just In Time Compiler

Explanation: Feature introduced in PHP 8 for runtime optimization.

480. PHP में garbage collection का उद्देश्य क्या है?

[A] Unused memory reclaim करना

[B] Database optimize करना

[C] Images delete करना

[D] Sessions encrypt करना

480. What is the purpose of garbage collection in PHP?

[A] Reclaim unused memory

[B] Optimize database

[C] Delete images

[D] Encrypt sessions

सही उत्तर: Unused memory reclaim करना

व्याख्या: Unused objects और circular references को remove करता है।

Correct Answer: Reclaim unused memory

Explanation: Removes unused objects and circular references.