MISSING VALUE Interview Questions

6,571,159 interview questions shared by candidates

We have a table called ad_accounts(account_id, date, status). Status can be active/closed/fraud. A) what percent of active accounts are fraud? B) How many accounts became fraud today for the first time? C) What would be the financial impact of letting fraud accounts become active (how would you approach this question)?
avatar

Data Scientist, Analytics

Interviewed at Meta

3.6
Mar 6, 2019

We have a table called ad_accounts(account_id, date, status). Status can be active/closed/fraud. A) what percent of active accounts are fraud? B) How many accounts became fraud today for the first time? C) What would be the financial impact of letting fraud accounts become active (how would you approach this question)?

Given a 1TB file of serialized 4 byte integers, and 2GB of ram, sort the integers into a resulting 1TB file. My interviewer was very collaborative in entertaining various solution ideas until we came up with a combo that would work performantly and reduce the number of passes over the 1TB file and intermediate files.
avatar

Senior Software Engineer

Interviewed at Meta

3.6
Oct 14, 2010

Given a 1TB file of serialized 4 byte integers, and 2GB of ram, sort the integers into a resulting 1TB file. My interviewer was very collaborative in entertaining various solution ideas until we came up with a combo that would work performantly and reduce the number of passes over the 1TB file and intermediate files.

You're given an array of numbers, and you want to find 3 numbers that sum to 0 and output those 3 numbers. You can use each number multiple times. So if you're given the array [-1, 1, 2], you would output [-1, -1, 2] because -1 -1 +2=0
avatar

Software Engineering Intern

Interviewed at Meta

3.6
Aug 6, 2015

You're given an array of numbers, and you want to find 3 numbers that sum to 0 and output those 3 numbers. You can use each number multiple times. So if you're given the array [-1, 1, 2], you would output [-1, -1, 2] because -1 -1 +2=0

for encoding that {a,b,c,...,z}<->{1,2,3,...,26} if given a list of digit e.g. [1,2,3], this may represent {1,2,3}->{a,b,c} or {12,3}->{l,c} or {1,23}->{a,w}. so there are 3 possible interpretations for list [1,2,3] so, given a list of digit, calculate the number of possible interpretations for the list.
avatar

Software Engineer Intern

Interviewed at Meta

3.6
Oct 3, 2016

for encoding that {a,b,c,...,z}<->{1,2,3,...,26} if given a list of digit e.g. [1,2,3], this may represent {1,2,3}->{a,b,c} or {12,3}->{l,c} or {1,23}->{a,w}. so there are 3 possible interpretations for list [1,2,3] so, given a list of digit, calculate the number of possible interpretations for the list.

Viewing 2921 - 2930 interview questions

Glassdoor has 6,571,159 interview questions. Prepare for your interview. Get hired. Love your job.