Alibaba online written examination Summary

This year, Alibaba school recruited the first online written examination, 20 single-choice questions (40 mins) + 3 additional questions (80 mins) for a total of 2 hours.

The 20 single-choice questions include questions about network protocols, operating systems, C ++, mathematical logic, data structures, and algorithms. Among them, the mathematical and logical questions account for the largest proportion, followed by C ++ and data structures and algorithms. Time is quite short.

Three major questions: binary tree traversal, longest Public String, sleep () and wait () in Java;

 

There are some lessons for single-choice questions:

Although the online test is convenient, in order to reduce cheating (there must be, for example, more people can help with it), time will be tight, so there is no time to query information.

In addition, I made two major mistakes in this test:Emotional stress, difficult mathematical logic problems. This leads to insufficient time, which is a great lesson.

In addition, this written test examines the C/C ++ syntax. I have suffered a loss in this regard because I have prepared Java. However, companies such as Alibaba that have a large number of Java applications only take the C/C ++ test, which shows that C/C ++ is in the position of recruitment surveys.C/C ++.

 

In addition to the last question, the main question is the encoding capability.Write code with multiple features.

 

I don't know how to screen them later. I'm not optimistic about the test. I may just wave goodbye to Alibaba!

Alibaba online written examination Summary