Test interview | how much can you answer the real test interview question of an Internet company?

In the near future , Hogwarts test school @T classmate Interviewed a well-known Internet manufacturer for testing and development , During the interview, I encountered many headache problems , Mentality also fluctuates . Although it finally passes through three sides , Get a high salary
Offer, But also call stimulation .

This article is part of the interview questions summarized in his reply , Share it for your test partners to learn and reference . Look at the following questions , How much can you answer ？

one side

The interviewer should be a technical boss of the team , A man of science and engineering is serious , It's very big .

1. Introduce yourself briefly ;

2. 2. How to implement the automated testing framework ？
3. 3. Talk about some common problems in the industry such as automation cost performance ;
4. 4. Java What is the base class in ？ What methods are commonly used in base classes ？（ I mentioned getClass(), So the interviewer asked getClass What methods are used to do ?）
5. 5. Redis What are the data types of ？
6. 6. understand Redis Data persistence ？
7. 7. Spring Web Do you understand the development of ？
8. 8. Multithreading understand ？ Explain the common keywords of multithreading ;
9. 9. Hashmap Of put How to implement the method , Talk about the process ？
10. 10. Hashmap Is it thread safe ？ Why not thread safe ？
11. 11. Besides using sychronized Keyword to solve thread safety problems , Are there any other keywords ？
12. 12. What are the three important parameters in the thread pool ？
13. 13. What indexes do you know ？ Why the index fails ？
14. 14. Talk about the four characteristics of database transactions ？
15. 15. Talk about the isolation level of database transactions ？
16. 16. Talk about the transaction propagation level of the database ？

17. 17. database SQL subject

        Class table t1：stuid, class
        League tables t2: stuid,sub,grade
        Statistics ：

                            The total score of each class >500 The number of people ;  
        

18. Algorithm title
    Design LRU, But the title is too long to understand , So the interviewer changed a simpler question —— Design LRU Cache structure .

Language ：C、Python、C++、Javascript、Python3、Java、Go All can .

         Design  LRU  Cache structure , The structure is sized at construction time , Assume the size is K, And has the following two functions   
              
                  - set(key, value)： Will record (key, value) Insert the structure   
                  -     - get(key)： return key Corresponding value value   
                  -       
                  -     [ requirement ]  
                  -       
                  -     - set  and  get  The time complexity of the method is O(1)  
                  -     -  Some  key  Of  set  or  get  Once the operation occurs , Think of this  key  The most commonly used record of .  
                  -     -  When the size of the cache exceeds  K  when , Remove the least frequently used records , namely  set  or  get  The oldest .  
                  -     -  if  opt=1, The next two integers  x, y, Express  set(x, y)  
                  -     -  if  opt=2, Next an integer  x, Express  get(x), if x Not present or removed , Then return to -1  
                  -     -  For each operation  2, Output an answer   
                  -        
                  -     [ Example 1]  
                  -       
                  -      Input   
                  -       
                  -      [[1,1,1],[1,2,2],[1,3,2],[2,1],[1,4,4],[2,2]],3  
                  -       
                  -      Output   
                  -        
                  -      [1,-1]  
                  -       
                  -      explain   
                  -       
                  -     -  After the first operation ： The most commonly used records are ("1", 1)  
                  -     -  After the second operation ： The most commonly used records are ("2", 2),("1", 1) Become the least commonly used   
                  -     -  After the third operation ： The most commonly used records are ("3", 2),("1", 1) Or the least commonly used   
                  -     -  After the fourth operation ： The most commonly used record is ("1", 1),("2", 2) Become the least commonly used   
                  -     -  After the fifth operation ： The size is over 3, So remove the most infrequently used records at this time ("2", 2), Accession record ("4", 4), And for the most commonly used records , then ("3", 2) Become the least frequently used record   
                  -     

19. Algorithm title

       Enter a linked list , After reversing the list , Output the header of the new linked list .  
    

Two sides

The interview atmosphere is relatively cordial and gentle , The overall atmosphere is relatively relaxed .

1. Introduce yourself briefly ？
2. 2. Do you think it is necessary to do automated testing ？ What's the point of Automation ？
3. 3. Have you encountered any test difficulties in the project , Tell me about ？
4. 4. Talk about your understanding of test development ？
5. 5. Design wechat friend circle praise and comment use cases
6. 6. How do you usually study ？
7. 7. Do you have any goals or plans for the future ？
8. 8. What are your expectations for the team ？
9. 9. How late can you start the job ？
10. 10. At present, you have other family's Offer Do you ？ Why are you here ？
11. 11. What do you want to ask me ？

On three sides

Or technical , Many problems are still very challenging , The originally relaxed heart suddenly became nervous .
… … … Remaining true questions , Official account acquisition … … …

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