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You have several servers that can take in a given number of requests. The server capacity and server requests are given to you in arrays (was actually lists). Three of the servers can be upgraded to double capacity. Return the number of servers or capacity left over or something, it wasn't clear. My best guess is they wanted the minimum capacity of the servers that would cover the entirety of the requests (so assume a cloud scenario where you could have unlimited compute but at a cost), but they didn't say that. The SQL question involved joining two tables, then adding another column which is the result of a calculation, then filtering and arranging that new column, and reducing it to two decimal places.
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Graduate Software Developer

Interviewed at IBM

3.9★
Dec 7, 2024

You have several servers that can take in a given number of requests. The server capacity and server requests are given to you in arrays (was actually lists). Three of the servers can be upgraded to double capacity. Return the number of servers or capacity left over or something, it wasn't clear. My best guess is they wanted the minimum capacity of the servers that would cover the entirety of the requests (so assume a cloud scenario where you could have unlimited compute but at a cost), but they didn't say that. The SQL question involved joining two tables, then adding another column which is the result of a calculation, then filtering and arranging that new column, and reducing it to two decimal places.

The first half is largely pattern recognition (e.g. something like 'guess the next number: 1, 4, 4, 7, 28, 10, 280, 13' except more complicated). The second half is more just rapid fire calculations, "calculate how much interest is paid on this load in x years" type stuff. There's enough time to do them out by hand but unless there are two very similar options, you're best off estimating which choice is best
avatar

Graduate Software Developer

Interviewed at IBM

3.9★
May 30, 2017

The first half is largely pattern recognition (e.g. something like 'guess the next number: 1, 4, 4, 7, 28, 10, 280, 13' except more complicated). The second half is more just rapid fire calculations, "calculate how much interest is paid on this load in x years" type stuff. There's enough time to do them out by hand but unless there are two very similar options, you're best off estimating which choice is best

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