What are the differences between compression and encoding? (Select two.)
A.
Compressed data can be queried prior to materializing the data.
B.
Queries can be processed against compressed data, speeding query response time.
C.
Both reduce the storage footprint.
D.
Queries can be processed against encoded data, speeding query response time.
E.
Encoding reduces only the storage footprint.
Explanation:
Correct options are C and D.
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I agree with you
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Des option C talking about difference ?
D is exactly true. C doesn’t talk difference because BOTH of them reduces storage footprint.
C may not be correct. However , i don’t understand what option A means.I’m still confused about this question
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Candidate, Option A probably means possibility to query from the WOS directly, which is not a case here.
Regarding to answers C and D, check the following web training on myvertica website:
http://my.vertica.com/wbt/01_VerticaBuildingBlocks/index.htm
There is a short knowledge check in the end and as far as I remember at least 2 of questions from this exam are there.
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