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3,513 data manager interview questions shared by candidates

Write a function to parse a string make sure that it's a well formed JSON. Essentially matching the order of opening and closing enclosures (){}[]. Erroneous examples would have them out of order and opening without closing or closing without opening.
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Data Engineer Manager

Interviewed at Collective Health

3★
Jan 12, 2018

Write a function to parse a string make sure that it's a well formed JSON. Essentially matching the order of opening and closing enclosures (){}[]. Erroneous examples would have them out of order and opening without closing or closing without opening.

How would you design and build a data model to report on active users and number of posts by interface (ipad, iphone, desktop web, etc) given a hierarchy of these interfaces and their rollup groupings, at any and all levels of the hierarchy?
avatar

Data Engineer Manager

Interviewed at Meta

3.5★
Dec 21, 2018

How would you design and build a data model to report on active users and number of posts by interface (ipad, iphone, desktop web, etc) given a hierarchy of these interfaces and their rollup groupings, at any and all levels of the hierarchy?

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