What is the difference between normal join and a broadcast join in apache spark
Junior Data Engineer Interview Questions
450 junior data engineer interview questions shared by candidates
What is a hash map?
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155 Minuten Codility test für Python, Spark, SQL
Implement the following functions: /* Insert a new client to the data structure */ void insertClientWithToken(const char name[NAME_SIZE], const int token) /* Perform a lookup which will return the name of the client in the data structure with a token of max value */ const char* getClientWithMaxToken() const /* Retrieve the value of the token corresponding with the input name */ int getToken(const char name[NAME_SIZE]) const /* Increase the values of all the tokens added until now but not the ones added after this call */ void increaseAllTokensByValue(const int value) This is the main: int main() { ClientDs ds; ds.insertClientWithToken("Alice", 3); ds.insertClientWithToken("Bob", 5); cout << ds.getClientWithMaxToken() << endl; // prints "Bob" cout << ds.getToken("Alice") << endl; // prints 3 ds.increaseAllTokensByValue(3); cout << ds.getToken("Alice") << endl; // prints 6 cout << ds.getToken("Bob") << endl; // prints 8 ds.insertClientWithToken("Eve", 7); cout << ds.getClientWithMaxToken() << endl; // prints "Bob" return 0; } To finish off implement the class.
Qual foi o projecto que mais gostei de fazer e sobre o que?
SQL query vraag hoe je een aggregaat doet. Group by etc.
What ideas do you have to lower the amount of cars needed for delivery?
How many cars would you need to ship amount X of boxes all over the Netherlands, and what Information do you need to calculate?
1. Tell me something about yourself that is not on your CV. 2. Why do you want to work here? 3. I was asked to talk about my recent work
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