Technologies Experiences Contribute

Technologies Experiences Contribute

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Transactions

1. What Are Transactions in MongoDB?

Level: Expert | Frequency: High

2. What is core api and callback api?

Level: Expert | Frequency: High

3. How does MongoDB achieve ACID compliance across multiple documents given its distributed nature?

Level: Expert | Frequency: High

4. What is the difference between 'Snapshot Isolation' and 'Serializable' isolation levels in MongoDB?

Level: Expert | Frequency: High

5. What are the major performance costs of using multi-document transactions compared to single-document atomic updates?

Level: Expert | Frequency: High

6. Discuss the 60-second execution limit. What happens to the WiredTiger cache if a transaction stays open for too long?

Level: Expert | Frequency: High

7. Explain 'Write Conflict' errors during a transaction. How should your Node.js application handle them?

Level: Expert | Frequency: High

8. How do 'Read Concern' and 'Write Concern' settings affect a transaction's behavior?

Level: Expert | Frequency: High

9. You are building a fintech ledger system. You need to move funds from User A to User B. How do you implement this, and why might you choose a 'Saga Pattern' over a MongoDB Transaction for this specific use case?

Level: Expert | Frequency: High

10. Why is it dangerous to perform asynchronous non-database tasks (like sending an email or calling an API) inside a session.withTransaction() block?

Level: Expert | Frequency: High

All Topics

BasicsCRUDBulk OperationsIndexingData ModellingReplicationShardingTransactionsAggregation