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SQL
a year ago
Could you construct a SQL query that pulls only the unique conversation events from a database?
Data Scientist

TikTok

Zenefits

Mapbox

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a year ago
Analytics Case
a year ago
Characters A, B, C, D are linked such that A is linked to B, A is linked to C, C is linked to D, and B is linked to D. Can these four characters be separated into two sets such that the graph is bipartite?
Data Scientist

TikTok

Postmates

HubSpot

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a year ago
Coding
a year ago
If we were limited to a random number generator, what technique would you use to generate i.i.d. draws from distribution X?
Data Scientist

TikTok

ClassPass Logo

ClassPass

HubSpot

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a year ago
Statistics
a year ago
Show how the mean and median are positioned in right-skewed and left-skewed distributions compared to a normal bell curve.,
Data Scientist

TikTok

Workday Logo

Workday

CrowdStrike Logo

CrowdStrike

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a year ago
Data Visualization
a year ago
Can you define the essential components that constitute a good data visualization?
Data Scientist

TikTok

Ola Logo

Ola

Discord Logo

Discord

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a year ago
Coding
a year ago
Pick the anagrams out of these words - Elbow, Believe, Below, Lemon.
Data Scientist

TikTok

Duolingo Logo

Duolingo

MongoDB Logo

MongoDB

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a year ago
Behavioral
a year ago
In the event that you are offered a position at TikTok, how long do you expect to stay?
Data Scientist

TikTok

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a year ago
SQL
2 years ago
Given a dataset, write a query to measure monthly retention.
Data Scientist

TikTok

Deliveroo Logo

Deliveroo

Mixpanel Logo

Mixpanel

Get answer reviewed by AI
2 years ago
ML Knowledge
2 years ago
Can you explain the relationship between Gradient Descent and deep learning models? How does Gradient Descent contribute to the training process of deep learning models?
Data Scientist

TikTok

Booking.com Logo

Booking.com

BetterUp Logo

BetterUp

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2 years ago
Behavioral
2 years ago
When you held a lot of responsibility previously, how did you overcome a challenge?
Data ScientistBackend EngineerProduct ManagerSoftware Engineer

TikTok

MyGlamm Logo

MyGlamm

HubSpot

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2 years ago

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*All interview questions are submitted by recent TikTok Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at TikTok.

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