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Esri EADP19-001 Exam - Topic 5 Question 29 Discussion

A raster dataset called rasterl.tif contains many pixels with values of NoData.Which map algebra expression changes NoData values to 0 (zero) in the output raster dataset while leaving all other pixel values the same?
B) con(rasten.tif = = NoData, 0, rasterl.tif)
A) con(rasten.tif = NoData. 0 raster!, tif)
C) con(isnull(raster1.tif). 0, rasterl.tif)
D) con(setnull{raster1.tif), 0, rasterl.tif)

Esri EADP19-001 Exam - Topic 5 Question 29 Discussion

Actual exam question for Esri's EADP19-001 exam
Question #: 29
Topic #: 5
[All EADP19-001 Questions]

A raster dataset called rasterl.tif contains many pixels with values of NoData.

Which map algebra expression changes NoData values to 0 (zero) in the output raster dataset while leaving all other pixel values the same?

Show Suggested Answer Hide Answer
Suggested Answer: B

by Bernardine at Jul 30, 2023, 01:07 AM

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Lera
10 months ago
I thought NoData values were supposed to stay as is, not change to 0?
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Artie
10 months ago
Wait, is D even a valid expression? Seems off to me.
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Leota
10 months ago
Definitely B! It’s straightforward and works well.
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Quinn
10 months ago
I think C looks good too, but not sure if it’s the best choice.
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Franchesca
10 months ago
Option B is the correct syntax for changing NoData to 0.
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Latanya
11 months ago
I think option C is close, but I feel like it might be missing something. We definitely talked about using isnull in our last review session.
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Corrie
11 months ago
I'm confused about the difference between options A and D. They both look similar, but I can't remember which one correctly uses the NoData function.
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Arthur
11 months ago
I remember we did a similar question where we had to replace NoData values. I feel like C could be the right choice, but I can't recall the exact function we used.
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Lenna
11 months ago
I think the answer might be B, but I'm not entirely sure about the syntax. It seems to match what we practiced in class.
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Lisbeth
11 months ago
Okay, I remember learning about this in class. The matrix structure is the one that blends the functional and project approaches to create a hybrid model. I'm pretty confident that's the right answer.
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Nohemi
11 months ago
I'm a little confused by this question. Prohibiting access at the workplace (option B) doesn't seem to make much sense to me. I think I'll focus my efforts on understanding how presence could be used to enhance security, rather than guessing at the right multiple-choice answer.
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Sherman
11 months ago
Hmm, I'm a bit unsure about the differences between Interactive Versions and Interactive Applications. Let me think this through carefully.
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Jacqueline
11 months ago
This looks straightforward, I'll focus on the key activities that utilize the employee record.
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Oren
11 months ago
Ah, I see. The question is asking about the drawbacks of WEP, not the advantages. So the slower encryption/decryption speeds compared to other protocols is probably not the right answer. I'll go with B.
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