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CompTIA DS0-001 Exam - 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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Mattie
3 months ago
I don't know, I thought Isolation played a bigger role in failures.
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Leigha
3 months ago
Wait, are we sure it's not D? Consistency seems important too.
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Yolando
3 months ago
A is correct, it ensures data is safe after a commit.
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Martina
4 months ago
I think it's C - Atomicity is more about the whole transaction.
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Andrew
4 months ago
Definitely A - Durability is key for transactions!
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Jerilyn
4 months ago
Consistency seems important too, but I believe it’s more about the state of the database rather than handling failures.
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Svetlana
4 months ago
I practiced a similar question where atomicity was highlighted, but I feel like durability is more directly related to system failures.
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Bette
4 months ago
I'm not entirely sure, but I remember that isolation deals with how transactions are executed concurrently. It might not be the best choice here.
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Rusty
5 months ago
I think durability is the right answer since it ensures that once a transaction is committed, it will remain so even if there's a system failure.
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Kristofer
5 months ago
The question is asking specifically about transactions, so I think durability is the best answer here. Gotta make sure the data sticks around even if things go wrong.
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Georgene
5 months ago
I'm a bit confused - is it atomicity or isolation that's related to transactions? I'll have to review those concepts again.
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Effie
5 months ago
Hmm, I'm a bit unsure about the difference between the ACID properties. I'll need to think this through carefully.
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Jaclyn
5 months ago
This seems like a straightforward ACID properties question. I'm pretty confident I can nail this one.
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Terrilyn
5 months ago
Okay, I know durability has to do with ensuring data persists even if the system fails. That's probably the key property here.
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Vincent
5 months ago
Okay, let me think this through. Since Memcached is holding the value in memory, we need to find a way to flush or update the cache directly. I'm thinking option C might be the best approach.
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Chan
5 months ago
Whew, this is a tough one. I'm a bit confused by the table and the different user group requirements. I'll need to review the question carefully and try to break down the problem step-by-step to arrive at the right answer.
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Janella
1 year 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
1 year 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
1 year ago
Atomicity is important too, it ensures that all transactions are completed successfully or none at all.
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Sean
1 year ago
I agree, durability ensures that the changes are permanent even if the system fails.
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Janae
1 year ago
Durability is definitely the key here. Can't risk losing all that data.
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Tu
1 year 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
1 year 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
1 year ago
Durability provides that peace of mind for database administrators when it comes to the integrity of their transactions.
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Nathalie
1 year ago
I agree, it's like having a safety net for your data in case something goes wrong.
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Lanie
1 year 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
1 year ago
Durability is crucial for ensuring that transactions are not lost if the system fails.
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Silvana
1 year ago
I think the answer is A) Durability.
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Elfriede
1 year ago
I agree with Silvana, Durability ensures that transactions are permanent even if the system fails.
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Lashunda
1 year ago
Isolation? That's more for concurrency control, not fault tolerance. Definitely Durability is the way to go here.
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Celestine
1 year 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
1 year ago
Yes, durability ensures that transactions are permanent even if the system crashes.
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Marisha
1 year ago
Durability is definitely key in case of system failure.
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Rosalind
1 year 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
1 year 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
1 year ago
I agree, Atomicity ensures that either all parts of a transaction are completed or none at all.
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Lezlie
2 years 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
1 year ago
I agree, durability is crucial for ensuring the reliability of the database in the event of a crash.
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Lettie
1 year ago
Yes, durability is essential for maintaining the integrity of the data in case of system failures.
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Ivette
1 year ago
Durability ensures that the changes made by a transaction are permanent even if the system fails.
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