On August 12th, I received the Tencent side and the experience was excellent. Why did you say that it was officially opening the autumn move? At that time, it was during an internship. The sudden Tencent side was a bit at a loss. It was the first interview of the autumn move. , I was also a wake-up call for myself through this interview. I realized that my foundation is weak. It is not difficult to ask on the one hand, but many basic knowledge points like the difference between java lock, epoll and select have not been answered, although the answer is good Very general, but the interviewer is very good and has been guiding me. The interview time has reached about 50 minutes. Although this interview was cool, it was of great help to me. After the interview, a summary reply was made. I also planned a review route and officially started the autumn move~~~
The following is attached:
- Talk about the understanding of object-oriented
- Talk about the container in java, and some of your usual usage scenarios
- The difference between HashMap, Hashtable, ConcurrentHashMap and the underlying implementation principle
- How much do you know about locks in java?
- Pessimistic lock and optimistic lock
- Usage scenarios of Synchronized keywords
- TCP three-way handshake and four waved hands
- What is the TIME_WAIT state?
- Can TCP three-way handshake carry business data?
- Semi-connected queue and fully connected queue
- Does epoll understand?
- Talk about thread pool
- The underlying implementation of mysql index, why use B-tree instead of binary tree
- Know the memory database, have you used redis
- Since I clicked on your blog site, what is the flow of the entire data, that is, how to call between the layers (asked for my personal blog project)
- If many people enter your blog site at the same time, it will cause page freezes. How to deal with this problem? (Asked for my personal blog project)