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CompTIA Exam DS0-001 Topic 1 Question 14 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 14
Topic #: 1
[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 Rodolfo at Apr 25, 2024, 10:29 PM

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Geoffrey
10 months ago
I always use PID to lock rows, it has never failed me.
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Johnetta
11 months ago
I'm not sure, but I think using SID to lock rows is a common practice.
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Theodora
11 months ago
I disagree, I believe locking rows with RID is more reliable.
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Erasmo
11 months ago
I think the best way to lock rows in SQL Server is using TID.
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Boris
12 months ago
I agree, using RID is the best way to lock rows
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Gerardo
12 months ago
C) RID
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Willard
12 months ago
Which of the following resources is the best way to lock rows in SQL Server?
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Val
11 months ago
Incorrect.
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Carlton
11 months ago
B) SID
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Evangelina
12 months ago
Not quite.
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Fidelia
12 months ago
A) TID
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Anjelica
12 months ago
No, that's not the best way.
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Sherman
12 months ago
D) PID
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Muriel
12 months ago
That's correct!
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Francoise
12 months ago
C) RID
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