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CompTIA Exam DS0-001 Topic 3 Question 24 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 24
Topic #: 3
[All DS0-001 Questions]

A database administrator is concerned about transactions in case the system fails. Which of the following properties addresses this concern?

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Suggested Answer: A

The property that addresses this concern is durability. Durability is one of the four properties (ACID) that ensure reliable transactions in a database system. Durability means that once a transaction has been committed, its effects are permanent and will not be lost in case of system failure, power outage, crash, etc. Durability can be achieved by using techniques such as write-ahead logging, checkpoints, backup and recovery, etc. The other options are either not related or not specific to this concern. For example, isolation means that concurrent transactions do not interfere with each other and produce consistent results; atomicity means that a transaction is either executed as a whole or not at all; consistency means that a transaction preserves the validity and integrity of the data.Reference:CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.3 Given a scenario, identify common database issues.


by Theodora at Aug 27, 2024, 07:38 AM

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Janella
3 months ago
I think the answer is D) Consistency, as it ensures that the database remains in a valid state before and after the transaction.
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Dalene
3 months ago
Durability, no doubt. Unless you want to kiss your data goodbye when the system goes down. That would be a real 'crash' course in database design.
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Ayesha
2 months ago
Atomicity is important too, it ensures that all transactions are completed successfully or none at all.
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Sean
2 months ago
I agree, durability ensures that the changes are permanent even if the system fails.
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Janae
2 months ago
Durability is definitely the key here. Can't risk losing all that data.
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Tu
3 months ago
I believe the correct answer is C) Atomicity, as it ensures that either all operations in a transaction are completed or none at all.
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Ilona
3 months ago
Durability is the key. I don't want my transactions to be as fragile as a house of cards in a hurricane.
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Derrick
2 months ago
Durability provides that peace of mind for database administrators when it comes to the integrity of their transactions.
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Nathalie
2 months ago
I agree, it's like having a safety net for your data in case something goes wrong.
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Lanie
2 months ago
Yes, durability guarantees that once a transaction is committed, it will persist even in the event of a system failure.
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Alysa
3 months ago
Durability is crucial for ensuring that transactions are not lost if the system fails.
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Silvana
3 months ago
I think the answer is A) Durability.
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Elfriede
3 months ago
I agree with Silvana, Durability ensures that transactions are permanent even if the system fails.
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Lashunda
3 months ago
Isolation? That's more for concurrency control, not fault tolerance. Definitely Durability is the way to go here.
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Celestine
3 months ago
Consistency? Nah, that's more about maintaining data integrity. Durability is what you need when the system hits the fan.
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Della
2 months ago
Yes, durability ensures that transactions are permanent even if the system crashes.
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Marisha
3 months ago
Durability is definitely key in case of system failure.
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Rosalind
3 months ago
Hmm, I'd say Atomicity. If a transaction fails, you want it to be like it never happened in the first place.
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Art
3 months ago
Actually, Durability is the property that ensures that once a transaction is committed, it will persist even if the system fails.
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Latanya
3 months ago
I agree, Atomicity ensures that either all parts of a transaction are completed or none at all.
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Lezlie
3 months ago
Durability, of course! You don't want all that hard work to go down the drain if the system crashes.
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Mabel
2 months ago
I agree, durability is crucial for ensuring the reliability of the database in the event of a crash.
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Lettie
3 months ago
Yes, durability is essential for maintaining the integrity of the data in case of system failures.
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Ivette
3 months ago
Durability ensures that the changes made by a transaction are permanent even if the system fails.
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