[ PHP Programming MCQS ]

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[ PHP Programming MCQS ]

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

481. API Gateway किसलिए उपयोग किया जाता है?

[A] Single Entry Point

[B] Database Storage

[C] Session Encryption

[D] View Rendering

481. Why is an API Gateway used?

[A] Single Entry Point

[B] Database Storage

[C] Session Encryption

[D] View Rendering

सही उत्तर: Single Entry Point

व्याख्या: Microservices के लिए centralized entry point।

Correct Answer: Single Entry Point

Explanation: Provides a centralized entry point for microservices.

482. Caching का मुख्य लाभ क्या है?

[A] Faster Response Time

[B] More CPU Usage

[C] More Queries

[D] More Network Traffic

482. What is the main benefit of caching?

[A] Faster Response Time

[B] More CPU Usage

[C] More Queries

[D] More Network Traffic

सही उत्तर: Faster Response Time

व्याख्या: Frequently accessed data memory में store होता है।

Correct Answer: Faster Response Time

Explanation: Frequently accessed data is stored in memory.

483. Redis किस प्रकार का database है?

[A] In-Memory Data Store

[B] Relational Database

[C] Graph Database

[D] Column Database

483. What type of database is Redis?

[A] In-Memory Data Store

[B] Relational Database

[C] Graph Database

[D] Column Database

सही उत्तर: In-Memory Data Store

व्याख्या: Fast caching और queue systems के लिए लोकप्रिय।

Correct Answer: In-Memory Data Store

Explanation: Popular for caching and queues.

484. Memcached का मुख्य उपयोग क्या है?

[A] Distributed Caching

[B] Email Sending

[C] Database Migration

[D] Image Editing

484. What is the primary use of Memcached?

[A] Distributed Caching

[B] Email Sending

[C] Database Migration

[D] Image Editing

सही उत्तर: Distributed Caching

व्याख्या: High-speed memory caching solution।

Correct Answer: Distributed Caching

Explanation: Provides high-speed memory caching.

485. Database Index का मुख्य उद्देश्य क्या है?

[A] Faster Query Execution

[B] Increase Storage

[C] Reduce Security

[D] Delete Records

485. What is the purpose of a database index?

[A] Faster Query Execution

[B] Increase Storage

[C] Reduce Security

[D] Delete Records

सही उत्तर: Faster Query Execution

व्याख्या: Indexes search operations को तेज करते हैं।

Correct Answer: Faster Query Execution

Explanation: Indexes speed up search operations.

486. N+1 Query Problem क्या है?

[A] Excessive Database Queries

[B] Session Error

[C] Cache Failure

[D] API Timeout

486. What is the N+1 Query Problem?

[A] Excessive Database Queries

[B] Session Error

[C] Cache Failure

[D] API Timeout

सही उत्तर: Excessive Database Queries

व्याख्या: एक query के साथ कई अतिरिक्त queries execute होना।

Correct Answer: Excessive Database Queries

Explanation: Occurs when one query triggers many additional queries.

487. Connection Pooling का लाभ क्या है?

[A] Reusing Database Connections

[B] Creating New DB Every Time

[C] Deleting Connections

[D] Encrypting Connections

487. What is the benefit of Connection Pooling?

[A] Reusing Database Connections

[B] Creating New DB Every Time

[C] Deleting Connections

[D] Encrypting Connections

सही उत्तर: Reusing Database Connections

व्याख्या: Repeated DB connection creation का overhead कम करता है।

Correct Answer: Reusing Database Connections

Explanation: Reduces overhead of creating connections repeatedly.

488. Event-Driven Architecture में communication किसके माध्यम से होती है?

[A] Events

[B] SQL Queries

[C] HTML Forms

[D] CSS Files

488. How do components communicate in Event-Driven Architecture?

[A] Events

[B] SQL Queries

[C] HTML Forms

[D] CSS Files

सही उत्तर: Events

व्याख्या: Components events publish और subscribe करते हैं।

Correct Answer: Events

Explanation: Components publish and subscribe to events.

489. Message Broker का उदाहरण कौन-सा है?

[A] RabbitMQ

[B] Bootstrap

[C] jQuery

[D] Smarty

489. Which is an example of a Message Broker?

[A] RabbitMQ

[B] Bootstrap

[C] jQuery

[D] Smarty

सही उत्तर: RabbitMQ

व्याख्या: Asynchronous messaging के लिए उपयोग होता है।

Correct Answer: RabbitMQ

Explanation: Used for asynchronous messaging.

490. CAP Theorem में C का क्या अर्थ है?

[A] Consistency

[B] Caching

[C] Compilation

[D] Concurrency

490. What does C stand for in CAP Theorem?

[A] Consistency

[B] Caching

[C] Compilation

[D] Concurrency

सही उत्तर: Consistency

व्याख्या: Distributed systems में data consistency।

Correct Answer: Consistency

Explanation: Refers to data consistency in distributed systems.