[ DOT NET Core MCQS ]

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[ DOT NET Core MCQS ]

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

341. EF Core में ThenInclude() का उपयोग किसलिए होता है?

[A] Nested Related Data Load करने के लिए

[B] Delete करने के लिए

[C] Update करने के लिए

[D] Migration के लिए

341. What is ThenInclude() used for?

[A] Load Nested Related Data

[B] Delete Data

[C] Update Data

[D] Migration

सही उत्तर: Nested Related Data Load करने के लिए

व्याख्या: Multiple Level Navigation Properties Load की जाती हैं।

Correct Answer: Load Nested Related Data

Explanation: Loads multi-level navigation properties.

342. Database Index का मुख्य उद्देश्य क्या है?

[A] Query Performance Improve करना

[B] Data Delete करना

[C] Authentication

[D] Routing

342. What is the main purpose of a Database Index?

[A] Improve Query Performance

[B] Delete Data

[C] Authentication

[D] Routing

सही उत्तर: Query Performance Improve करना

व्याख्या: Indexes Search Operations को Faster बनाते हैं।

Correct Answer: Improve Query Performance

Explanation: Indexes speed up search operations.

343. Clustered Index में Data कैसे Store होता है?

[A] Sorted Order में

[B] Random Order में

[C] Encrypted Form में

[D] XML Format में

343. How is data stored in a Clustered Index?

[A] In Sorted Order

[B] Random Order

[C] Encrypted Form

[D] XML Format

सही उत्तर: Sorted Order में

व्याख्या: Clustered Index Physical Data Order निर्धारित करता है।

Correct Answer: In Sorted Order

Explanation: Clustered index defines physical data order.

344. Non-Clustered Index क्या Store करता है?

[A] Pointer to Data

[B] Complete Data Copy

[C] Only Tables

[D] Only Views

344. What does a Non-Clustered Index store?

[A] Pointer to Data

[B] Complete Data Copy

[C] Only Tables

[D] Only Views

सही उत्तर: Pointer to Data

व्याख्या: Non-Clustered Index Data Location का Reference रखता है।

Correct Answer: Pointer to Data

Explanation: Stores references to actual data.

345. ACID में C का अर्थ क्या है?

[A] Consistency

[B] Caching

[C] Compilation

[D] Control

345. What does C stand for in ACID?

[A] Consistency

[B] Caching

[C] Compilation

[D] Control

सही उत्तर: Consistency

व्याख्या: Database हमेशा Valid State में रहती है।

Correct Answer: Consistency

Explanation: Database remains in a valid state.

346. ACID में I का अर्थ क्या है?

[A] Isolation

[B] Integration

[C] Inspection

[D] Iteration

346. What does I stand for in ACID?

[A] Isolation

[B] Integration

[C] Inspection

[D] Iteration

सही उत्तर: Isolation

व्याख्या: Transactions एक-दूसरे को प्रभावित नहीं करतीं।

Correct Answer: Isolation

Explanation: Transactions do not interfere with each other.

347. ACID में D का अर्थ क्या है?

[A] Durability

[B] Dependency

[C] Deployment

[D] Data

347. What does D stand for in ACID?

[A] Durability

[B] Dependency

[C] Deployment

[D] Data

सही उत्तर: Durability

व्याख्या: Committed Data Permanent रहती है।

Correct Answer: Durability

Explanation: Committed data remains permanent.

348. EF Core में SaveChanges() क्या करता है?

[A] Database में Changes Persist करता है

[B] Database Delete करता है

[C] Migration Create करता है

[D] Index Create करता है

348. What does SaveChanges() do in EF Core?

[A] Persists Changes to Database

[B] Deletes Database

[C] Creates Migration

[D] Creates Index

सही उत्तर: Database में Changes Persist करता है

व्याख्या: Tracked Changes Database में Save होती हैं।

Correct Answer: Persists Changes to Database

Explanation: Saves tracked changes to the database.

349. SaveChangesAsync() का लाभ क्या है?

[A] Non-Blocking Database Operations

[B] Fast Compilation

[C] UI Rendering

[D] Routing

349. What is the benefit of SaveChangesAsync()?

[A] Non-Blocking Database Operations

[B] Fast Compilation

[C] UI Rendering

[D] Routing

सही उत्तर: Non-Blocking Database Operations

व्याख्या: Async Operations Scalability Improve करती हैं।

Correct Answer: Non-Blocking Database Operations

Explanation: Async operations improve scalability.

350. View का उपयोग किसलिए किया जाता है?

[A] Virtual Table Create करने के लिए

[B] Database Delete करने के लिए

[C] Index बनाने के लिए

[D] Migration के लिए

350. What is a View used for?

[A] Create a Virtual Table

[B] Delete Database

[C] Create Index

[D] Migration

सही उत्तर: Virtual Table Create करने के लिए

व्याख्या: View एक Stored Query का परिणाम होती है।

Correct Answer: Create a Virtual Table

Explanation: A view represents a stored query result.