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Assume that for [XML Document] referenced in a separate window, you wish to create an XML Schema document that defines that the value of the level attribute of the record element must be unique within the XML document, and further that the level attribute of the scenario element must reference the value of the level attribute of the record element.
[XML Document]
Select which answer correctly belongs in (1) of the [XML Schema] document below.
Suggested Answer: D
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30 comments · newest first
CA
Carmelina
10 months ago
Option B seems like the right choice here.
GE
Gerry
10 months ago
Totally agree, that's crucial for data integrity!
VE
Veta
11 months ago
I think Option A might actually work too!
TE
Temeka
11 months ago
Wait, can level really reference another attribute like that?
ST
Steffanie
11 months ago
The level attribute in records must be unique.
RE
Renay
11 months ago
I vaguely remember something about using keyref for referencing attributes, but I’m confused about how to apply it here.
FA
Fabiola
11 months ago
I feel like one of the options has a key definition that links the record level to the scenario level, but I can't remember which one it is.
JE
Jesus
12 months ago
I think the level attribute needs to be defined with a unique constraint for the record element, but I can't recall the exact syntax for that.
AN
Annelle
12 months ago
I remember we practiced a question about unique attributes in XML Schema, but I'm not sure if it was specifically about referencing another element's attribute.
IL
Ilene
1 year ago
I've got a strategy for this. I'll use a unique constraint on the level attribute of the record element, and then a key-keyref relationship to link the level attribute of the scenario element to the record element. Hopefully that will satisfy the requirements.
DI
Dion
1 year ago
Hmm, this is a bit confusing. I'm not 100% sure how to approach the uniqueness constraint and the referencing between the elements. I'll need to review the XML Schema documentation to make sure I get this right.
EL
Ellsworth
1 year ago
Okay, the key things I need to focus on are making the level attribute unique for the record element, and ensuring the level attribute of the scenario element references the level attribute of the record element. I think I can handle this, but I'll need to double-check my work.
LE
Leoma
1 year ago
This looks like a tricky XML Schema question. I'll need to carefully read through the requirements and the sample XML document to understand what's needed.
GR
Gregoria
1 year ago
If this was a test on Dungeons & Dragons, the 'level' attribute would be a whole different story. 'You encounter a level 5 dragon. Roll for initiative!'
FR
Francesco
1 year ago
Option A? Really? Restricting the level attribute to a specific list of values? That's so 1990s. I want my XML schemas to be flexible, not stuck in the past.
RO
Rosalyn
1 year ago
Option D is just silly. Who would use a regular expression to validate the level attribute? That's like trying to solve a simple math problem with calculus.
GE
Gerry
1 year ago
I would go with Option B to ensure the level attribute is unique within the XML document.
CO
Cordelia
1 year ago
Yeah, using a regular expression for this seems like overkill. Option A or Option B make more sense.
JO
Josphine
1 year ago
I think Option A or Option B would be more appropriate for defining the uniqueness of the level attribute.
VI
Virgie
1 year ago
I agree, Option D seems unnecessary for this scenario.
DO
Dorethea
1 year ago
I like how Option C uses the 'key' and 'keyref' elements to link the scenario element's level attribute to the record element's level attribute. That's a neat way to establish the reference.
DE
Delfina
1 year ago
I think Option C is the most elegant solution for ensuring the uniqueness and reference of the level attribute.
TO
Tora
1 year ago
I agree, Option C is the most efficient way to link the level attributes of the record and scenario elements.
AL
Allene
1 year ago
Option C is definitely the best choice. It's a clever use of 'key' and 'keyref' elements.
JA
Jaime
2 years ago
Why do you think Option C is correct?
SU
Sue
2 years ago
Option B seems the most logical choice to ensure the uniqueness of the level attribute for the record element. It uses the 'unique' constraint to enforce this requirement.
SA
Sabine
1 year ago
Yes, Option B uses the 'unique' constraint which is perfect for that requirement.
TI
Tiera
1 year ago
I agree, Option B is the best choice to ensure the uniqueness of the level attribute.
VE
Vernice
2 years ago
I disagree, I believe the correct answer is Option C.
JA
Jaime
2 years ago
I think the correct answer is Option A.