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Esri EADP19-001 Exam - Topic 5 Question 38 Discussion

Refer to the exhibit.The ArcGIS user is given data for the Arctic, and is asked to perform various types of analysis using the data. The data extends from the North Pole south to 55 degrees North Latitude Data layers may contain points lines, or polygons and include ice surveys from NOAA depth contours; continental margins, locations of known and suspected oil reserves, endangered species habitat and territorial boundaries for nations having Arctic coastline.An ArcGIS user is asked to calculate the distance a cruise ship will travel through open water, departing from Nome, Alaska, with stops at Point Barrow Alaska Churchill Manitoba St John's Newfoundland and ending in Bar Harbor Maine. On the basis of these calculations the cruise ship line will determine fuel requirements and travel time.Which map projection yields the most accurate results for this distance calculation?
B) Lambert azimuthal
A) Albers equal area conic
C) Mercator
D) azimuthal equidistant

Esri EADP19-001 Exam - Topic 5 Question 38 Discussion

Actual exam question for Esri's EADP19-001 exam
Question #: 38
Topic #: 5
[All EADP19-001 Questions]

Refer to the exhibit.

The ArcGIS user is given data for the Arctic, and is asked to perform various types of analysis using the dat

a. The data extends from the North Pole south to 55 degrees North Latitude Data layers may contain points lines, or polygons and include ice surveys from NOAA depth contours; continental margins, locations of known and suspected oil reserves, endangered species habitat and territorial boundaries for nations having Arctic coastline.

An ArcGIS user is asked to calculate the distance a cruise ship will travel through open water, departing from Nome, Alaska, with stops at Point Barrow Alaska Churchill Manitoba St John's Newfoundland and ending in Bar Harbor Maine. On the basis of these calculations the cruise ship line will determine fuel requirements and travel time.

Which map projection yields the most accurate results for this distance calculation?

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Suggested Answer: B

by Vincenza at Feb 10, 2024, 01:50 PM

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Aliza
9 months ago
Interesting! I didn’t know the azimuthal equidistant could be so useful!
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Glory
10 months ago
Wait, are we sure about that? I always thought Albers was more accurate.
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Lindsey
10 months ago
Definitely going with Lambert azimuthal for this one!
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Dorethea
10 months ago
I thought Mercator was the go-to for distances?
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Annamae
10 months ago
The azimuthal equidistant projection is best for distance calculations!
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Regenia
10 months ago
I recall that the Albers equal area conic is great for area calculations, but I’m not confident it’s the best for distance.
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Terrilyn
11 months ago
I practiced a similar question where we had to choose projections for distance; I think Mercator is not the right choice for this one since it distorts distances.
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Winfred
11 months ago
I’m not entirely sure, but I think the azimuthal equidistant projection might be the best for calculating distances accurately.
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Huey
11 months ago
I remember studying that the Lambert azimuthal projection is often used for distance calculations, especially for polar regions.
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Wilford
11 months ago
I'm feeling pretty confident about this one. The key is that we need a projection that minimizes distortion of distances, so I'm going to go with Albers equal area conic. That should give us the most accurate results for this cruise ship route.
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Dorathy
11 months ago
Okay, I've got this. For a long-distance route like this, I think the azimuthal equidistant projection would be the most accurate for calculating the distance. It preserves true distances from the central point.
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Fernanda
11 months ago
Hmm, I'm a bit confused. I know map projections can affect distance calculations, but I'm not sure which one would be best for this scenario. I'll have to review my notes on the different projection types.
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Sanda
11 months ago
This seems like a tricky question. I'll need to think carefully about the map projections and how they distort distance measurements in different ways.
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Odelia
11 months ago
I'm a bit confused by the different AWS services involved here. I'll need to make sure I understand how EventBridge, SNS, and SCPs work together before deciding on the best approach.
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Hubert
11 months ago
Okay, let me see... The indexer, KV Store, search head, and dedicated forwarder are all part of the Splunk infrastructure, so I'll need to consider the role and function of each one to determine the best place to upload the ES application.
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Art
11 months ago
I'm a little confused by the wording of the question. Is it asking about the advantages or the limitations of COTS? I'll need to re-read the options more closely.
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Lavera
11 months ago
From what I remember, 242.0.1.0 sounds wrong, but I could be mixing it up with the reserved addresses.
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Elliot
11 months ago
I'm a bit confused by the different model numbers and versions mentioned. I'll need to do some quick research to make sure I understand the differences between them.
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Sherita
2 years ago
Mercator may distort distances towards the poles, so Albers equal area conic seems like a better choice in this case.
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Nadine
2 years ago
I agree with Sherita, Albers equal area conic would likely provide the most accurate results.
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Bulah
2 years ago
I disagree, I believe Mercator would be more accurate for this distance calculation.
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Sherita
2 years ago
I think the best map projection for this calculation would be Albers equal area conic.
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