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CompTIA Exam DS0-001 Topic 5 Question 19 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 19
Topic #: 5
[All DS0-001 Questions]

Which of the following resources is the best way to lock rows in SQL Server?

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Suggested Answer: C

The resource that is the best way to lock rows in SQL Server is RID. RID, or Row IDentifier, is an attribute that uniquely identifies each row in a heap table in SQL Server. A heap table is a table that does not have a clustered index, which means that the rows are not stored in any particular order. A RID consists of the file number, page number, and slot number of the row in the database. A RID can be used to lock rows in SQL Server to prevent concurrent access or modification by other transactions or users. A RID lock is a type of lock that locks a single row using its RID. A RID lock can be applied using theHOLDLOCKorXLOCKhints in aSELECTstatement. The other options are either not related or not effective for this purpose. For example, TID, or Transaction IDentifier, is an attribute that uniquely identifies each transaction in a database; SID, or Security IDentifier, is an attribute that uniquely identifies each user or group in a Windows system; PID, or Process IDentifier, is an attribute that uniquely identifies each process in an operating system.Reference:CompTIA DataSys+ Course Outline, Domain 3.0 Database Management and Maintenance, Objective 3.3 Given a scenario, implement database concurrency methods.


by Jacklyn at Jun 19, 2024, 10:04 AM

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Dalene
3 months ago
Hmm, let's see... D) PID, the 'Personal ID' option. Wait, that's not a thing, is it? Clearly, C) RID is the winner here.
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Jerry
2 months ago
Yeah, PID doesn't make sense for locking rows. C) RID is the correct choice.
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Lelia
3 months ago
I agree, locking rows using RID is the way to go.
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Julio
3 months ago
I think C) RID is the best option.
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Carmen
3 months ago
Definitely, PID is not a valid option for locking rows.
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Gerald
3 months ago
I agree, locking rows with RID is the way to go.
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Ronald
3 months ago
I think C) RID is the best option.
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Raul
4 months ago
I personally prefer using SID for locking rows, as it offers better performance in my experience.
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Herschel
4 months ago
C) RID? More like C) 'Ridiculous' if you ask me. This question is a real head-scratcher.
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Talia
4 months ago
A) TID? What is this, a wildlife reserve? C) RID is the way to go, folks.
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Ming
3 months ago
A) TID? What is this, a wildlife reserve?
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Leatha
3 months ago
C) RID is the way to go, folks.
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Glennis
4 months ago
But TID provides a more efficient way to lock rows, especially in high concurrency environments.
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Glory
4 months ago
I disagree, I believe using RID is the best way to lock rows.
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Barney
4 months ago
B) SID, of course! Wait, what? SID? I must be thinking of something else. C) RID is the correct answer.
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Leslee
4 months ago
D) PID? Really? That's not even a thing in SQL Server. Nice try, but I'm going with C) RID.
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Joesph
4 months ago
Yeah, definitely not D) PID. C) RID is the way to go.
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Shonda
4 months ago
C) RID is the correct answer. Good choice!
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Glennis
5 months ago
I think the best way to lock rows in SQL Server is using TID.
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Rebeca
5 months ago
I think the answer is C) RID. It's the most efficient way to lock rows in SQL Server.
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Mary
4 months ago
I'm not sure, but I think B) SID might also be a good option for locking rows.
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Earleen
4 months ago
I think it's actually A) TID that is the most efficient way to lock rows.
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Ilona
4 months ago
I agree, C) RID is the best way to lock rows in SQL Server.
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