what is the Byte size range of signed and unsigned data operators?
Software Engineer Data Interview Questions
438 software engineer data interview questions shared by candidates
What is address space in the OS?
Just look up Blood Donation Supply-Demand Analysis Problem SQL query. They also asked me to code up a basic Python class that filtered and sorted data.
Problem :Design an org-chart server. Server (preferably multi-threaded) reads the sample file containing employee data. File format: Its semi-colon separated, the first field is the employee-id, 2nd field is name [can be space separated] & the 3rd field is his manager’s id. employee-id will be equal to reports-to-id for CEO. The file can have empty lines. If number of tokens is not equal to 3, it should ignore these lines but report a message/warning and continue. The id’s can be numbers or strings Sample file: ########### 1: CEO: 1 2: CTO: 1 3: VP Sales: 1 4: Tech Manager1: 2 5: Tech Manager2:
You have a huge file, with a big spares matrix. Transpose this matrix and export it into a file. Due to the memory limit, you can not read the whole file.
What is combiner in Map Reduce?
What's your recent project. Explain how did you do it?
How did you account for <issues that are commonly known about problem domain>? Do you know if there are any disadvantages to using this method/algorithm/model? Can you explain in detail how <algorithm referenced in presentation code but called from ext library> works? How would you work on this code collaboratively? Are there any improvements you would make to the code before production? How would you make this script machine readable? What was your experience like working with <programming language> on <project in CV>?
asked all spark related questions
Very generic questions which do not have any specific or single answer like - how would you optimize a hive query? how would you optimize a spark job?
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