Which isolation level allows transactions to read uncommitted data, potentially leading to dirty reads?
Master Hibernate and JPA with Spring Boot in 100 Steps - Step 61 - Understand 4 Isolation Levels

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Information Technology (IT), Architecture
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Serializable
Repeatable Read
Read Uncommitted
Read Committed
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main advantage of the Read Committed isolation level?
It allows phantom reads.
It allows dirty reads.
It prevents dirty reads by only allowing committed data to be read.
It locks the entire table during a transaction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which isolation level would you choose to prevent dirty reads but allow non-repeatable reads and phantom reads?
Read Committed
Read Uncommitted
Repeatable Read
Serializable
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Repeatable Read isolation level ensure data consistency?
By allowing non-repeatable reads.
By locking both modified and read data during a transaction.
By locking only modified data.
By allowing dirty reads.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which isolation level is the strictest and prevents all three problems: dirty reads, non-repeatable reads, and phantom reads?
Serializable
Repeatable Read
Read Committed
Read Uncommitted
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the Serializable isolation level, what happens when a transaction starts with a query that has specific constraints?
Only the modified rows are locked.
The entire table is locked.
No locks are applied.
A lock is created for any row matching the constraints.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential downside of using the Serializable isolation level?
It does not prevent phantom reads.
It allows dirty reads.
It can lead to reduced concurrency due to extensive locking.
It allows non-repeatable reads.
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