The job-hopping season is here, Linux operation and maintenance trainees interview dozens of interview questions with a monthly salary of 15k

1. What is operation and maintenance? What is game operation and maintenance?
1) Operation and maintenance refers to the maintenance of network software and hardware that large organizations have established. It is to ensure the online and normal operation of the business.
During his operation, he is maintained. He integrates the network, system, database, and Development, security, and monitoring technology.
Operation and maintenance includes many types, including DBA operation and maintenance, website operation and maintenance, virtualized operation and maintenance, monitoring operation and maintenance, game operation and maintenance, etc.
2) Game operation and maintenance has a division of labor, which is divided into Development operation and maintenance, application operation and maintenance (business operation and maintenance) and system operation and maintenance
Development and operation and maintenance: It is to develop operation and maintenance tools and operation and maintenance platform for
application operation and maintenance. Use tools developed by development operation and maintenance to conduct business online, maintenance, and troubleshooting.
System operation and maintenance: provides business infrastructure for application operation and maintenance, such as: system, network, monitoring, hardware, etc.
Summary: development, operation and maintenance System operation and maintenance provides "tools" and "infrastructure" support
for application operation and maintenance. Development operation and maintenance, application operation and maintenance, and system operation and maintenance are interlinked.
2. In work, operation and maintenance personnel often I need to deal with operations personnel. What do operations personnel do?
In addition to coordinating work, game operations
need to communicate with various platforms, and make plans for the opening time, number of opening servers, user guidance, activities, etc.
3. Now I will give you three hundred servers, how do you treat them? To manage?
Ways to manage 300 servers:
1) Set springboards and log in with a unified account, which is convenient for security and login considerations.
2) Use salt, ansiable, and puppet for the unified management of the system's unified scheduling and configuration.
3) Establish simple cmdb information management of server system, configuration, and application. It is convenient to check various information records on each server.
4. Briefly describe the working principle and characteristics of the three working modes of raid0 raid1 raid5
RAID, which can integrate hard disks into one large disk