This seems simple, but many candidates don't answer well and fail to show their ability and level in their answers. There are two reasons: first, I am nervous and can't express and explain the project well. Second, I don't pay attention to summing up and thinking in my usual work, so that I can't grasp the key points and show my technical ability and level. Operation and maintenance work is quite complicated. You feel busy every day. After a year or so, looking back, I feel speechless. It's a pity to miss a good job opportunity like this. 1. Briefly summarize item 2. Introduce the project architecture. Describe the overall architecture, system environment and software architecture of the project in one sentence. Network architecture can be described according to network topology. By the way, server roles and business processes. It is necessary to highlight the key points in the operation and maintenance architecture: monitoring and alarm, load balancing, redundancy, high availability, database clustering, storage, security, virtualization deployment and design. The introduction of the technical part you are responsible for may not involve details, but when introducing the main part you have done, you should be prepared for the interviewer to ask for details. After all, this piece can better highlight your ability and level. For example, if you are responsible for the network architecture and operation and maintenance of the whole project, then you can show your network technical level and ability from the aspects of optimization design of switching and routing, network security reinforcement of firewall, high availability of load balance, and put forward what you think is good in the project, whether it is architecture design or specific optimization details. 4. What needs to be improved. Project management. It is what every interviewer wants to see to highlight his sense of responsibility and be serious and responsible for his work. At work, even if your skills are not very comprehensive or good, you are serious and responsible for your work, willing to learn and willing to take pressure, so that it has the value of training and conforms to the concept of employing people in enterprises, and enterprises will seriously consider you. 1. Introduce the phenomenon of failure. 2. Describe your analysis and solution process. 3. Thinking and summary after fault handling. Through the above, you can be fully prepared for the interview.