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CompTIA DS0-001 Exam - Topic 3 Question 23 Discussion

Which of the following best describes a collection of data that shares the same properties or attributes?
C) Entity set
A) Relation set
B) ER model
D) Tuples

CompTIA DS0-001 Exam - Topic 3 Question 23 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 23
Topic #: 3
[All DS0-001 Questions]

Which of the following best describes a collection of data that shares the same properties or attributes?

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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 Novella at Aug 02, 2024, 10:21 AM

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Cecilia
7 months ago
ER model is more about relationships, not just attributes.
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Allene
8 months ago
Wait, is it really Entity set? I’m not so sure.
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Myong
8 months ago
No way, it's Tuples for sure!
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Jacki
8 months ago
I thought it was a Relation set?
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Yoko
8 months ago
Definitely an Entity set!
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Marsha
9 months ago
I keep mixing up tuples and entity sets. I think tuples refer to individual records, not a collection.
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Candra
9 months ago
"Relation set" seems like a possibility, but I feel like we covered something different in class that fits this description better.
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Theola
9 months ago
I remember discussing the ER model, but I can't recall if it specifically refers to a collection of data.
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Loreta
9 months ago
I think the answer might be "Entity set," but I'm not entirely sure. It sounds familiar from our last practice session.
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Ashanti
9 months ago
I'm a little confused by the wording of this question. Is it asking about a specific database modeling concept, or just a general description of a data collection? I'll have to think it through carefully before selecting an answer.
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Felix
9 months ago
Okay, I've got this. A collection of data with shared properties is an entity set. The other options like relation set and tuples are related concepts, but don't directly describe the overall data structure. I'm confident C is the right answer.
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Toshia
9 months ago
Hmm, I'm a bit unsure about this one. I know we covered entity sets and relations in class, but I can't quite remember the differences. Maybe I'll try to eliminate the options that don't sound right.
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Roselle
9 months ago
This looks like a straightforward database concept question. I'll start by thinking about the key properties of a collection of data - it should share the same attributes or characteristics. That narrows it down to a few options.
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Kimberlie
9 months ago
I'm feeling pretty confident about this one. The question is specific, and I remember learning about the default VLANs that are created. I'm going to select C and move on to the next question.
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Flo
9 months ago
I'm not sure about this one. I'll have to review my notes on network design best practices.
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Jaleesa
9 months ago
I'm a bit unsure about a couple of these options. I'll make my best guess, but I might need to come back to this question if I have time at the end.
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Georgene
1 year ago
Wait, is the ER model the one with the entity-relationship diagrams? I'm so confused now.
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Aleshia
1 year ago
This question is making me hungry. I could really go for a tuple of tacos right about now.
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Refugia
1 year ago
D) Tuples
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Keshia
1 year ago
C) Entity set
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Garry
1 year ago
A) Relation set
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Cyril
1 year ago
I'm going with A) Relation set. That's what we call a group of entities with the same attributes, isn't it?
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Thomasena
1 year ago
D) Tuples sounds like the right answer to me. Isn't a tuple just a row in a database table?
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Glory
1 year ago
Actually, it's D) Tuples. Each tuple represents a single record in a database.
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Osvaldo
1 year ago
I think it's C) Entity set. That's where data with the same properties are grouped together.
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Hester
1 year ago
Yes, you're correct! A tuple is indeed a row in a database table.
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Glenn
1 year ago
D) Tuples
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Terina
1 year ago
C) Entity set
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Shannon
1 year ago
B) ER model
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Celeste
1 year ago
A) Relation set
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Tula
1 year ago
I'm not sure, but I think it could also be A) Relation set, as it represents a collection of tuples with the same attributes.
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Novella
1 year ago
I agree with Darrel, because an entity set represents a collection of entities that share the same attributes.
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Deeanna
1 year ago
Hmm, I'm not sure. Isn't an ER model a better description for a collection of data with shared attributes?
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Eric
1 year ago
I agree, an Entity set makes more sense for data with shared attributes.
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Jaclyn
1 year ago
I think it's C) Entity set.
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Genevieve
1 year ago
D) Tuples
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Halina
1 year ago
D) Tuples
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Bambi
1 year ago
C) Entity set
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Marva
1 year ago
B) ER model
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Christoper
1 year ago
C) Entity set
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Eleonora
1 year ago
A) Relation set
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Brigette
1 year ago
B) ER model
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Howard
1 year ago
A) Relation set
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Wilda
1 year ago
I think the correct answer is C) Entity set. A collection of data with the same properties is an entity set, right?
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Darrel
1 year ago
I think the answer is C) Entity set.
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