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Select which of the following is not a correct description regarding dynamic context defined by XQuery 1.0.
Suggested Answer: B, F
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30 comments · newest first
CA
Carol
10 months ago
C is definitely correct, fn:last() gives context size.
MA
Marti
10 months ago
Wait, can you really not set dynamic context in the prolog? That seems off.
HE
Herminia
10 months ago
I think B is misleading, it’s not all about static context.
CH
Chantell
11 months ago
Totally agree, A is spot on!
CH
Charlena
11 months ago
Dynamic context is all about what’s available during evaluation.
NA
Nana
11 months ago
I feel like I read something about query prolog not affecting dynamic context components, so D could be misleading, but I’m not completely confident.
LA
Laurena
11 months ago
I practiced a question where we had to determine context size, and I think fn:last() is indeed used for that, so C might be the one that’s incorrect.
BE
Becky
11 months ago
I'm not entirely sure, but I think the dynamic context does include components from the static context, which makes B sound right.
LA
Lashon
12 months ago
I remember that dynamic context is all about the information available during evaluation, so A seems correct to me.
PE
Peggie
12 months ago
I feel like I've got a solid grasp on dynamic context from the course material. I'll carefully consider each option and select the one that is not a correct description.
LU
Lucille
1 year ago
The last option about the query prolog seems a bit tricky. I'll need to double-check my understanding of how the prolog works in relation to the dynamic context.
CL
Claribel
1 year ago
Okay, let me think this through. The dynamic context includes information available at the time of evaluation, and it builds on the static context. I think I've got a good handle on this.
GE
Geoffrey
1 year ago
Hmm, I'm a bit unsure about the differences between static and dynamic context. I'll need to review those concepts before answering.
FR
Francine
1 year ago
This question seems pretty straightforward. I'm pretty confident I can identify the correct answer.
JO
Joanna
1 year ago
Option C is definitely not correct. The fn:last() function returns the number of items in the current sequence, not the context size.
CH
Chaya
1 year ago
Haha, the dynamic context is like a secret sauce, and we have to use it just right, or our query might end up tasting a bit off!
DE
Delsie
1 year ago
D) Query prolog cannot be used to set the value for any of the dynamic context components
DE
Delsie
1 year ago
C) The value of context size (one of the dynamic context components) can be obtained using the 'fn:last()' function
DE
Delsie
1 year ago
B) The dynamic context consists of all the components of the static context (default element/type namespace, etc.), and additional components (context item, etc.)
DE
Delsie
1 year ago
A) Dynamic context is information that is available at the time the expression is evaluated
LE
Leanora
1 year ago
I think option D is the correct answer. The query prolog is used to set the static context, not the dynamic context.
QU
Quentin
1 year ago
Yes, the query prolog is for the static context, not the dynamic context.
OR
Ora
1 year ago
I agree, option D seems to be the correct answer.
CH
Cherilyn
1 year ago
The dynamic context includes the context item, which can be accessed using the dot (.) operator. Option A seems to be correct.
BL
Blair
1 year ago
C) The value of context size (one of the dynamic context components) can be obtained using the 'fn:last()' function
BL
Blair
1 year ago
B) The dynamic context consists of all the components of the static context (default element/type namespace, etc.), and additional components (context item, etc.)
BL
Blair
1 year ago
A) Dynamic context is information that is available at the time the expression is evaluated
DE
Dewitt
2 years ago
But doesn't the dynamic context include all components of the static context?
JA
Janae
2 years ago
I disagree, I believe the correct answer is C.
DE
Dewitt
2 years ago
I think the correct answer is D.