The first exam question
Draw the system application architecture diagram
Write the difference between LVS and nginx
The current database service processing speed is slow, what do you think may be the cause, and explain the corresponding solutions
Tell me about the storage engine you know, how to decide the table to use the storage engine when building the table
What are the disadvantages of a single table that is too large and how to solve it
Give you 50 servers, explain how to design your topology
If you are a database administrator, explain how you can add authorized users to the server
If you are a database administrator, explain how you back up your data
What are the current common database software? When building a database cluster, how do you choose which software to use
mysql database service, what is the role of the numeric type width?
Before configuring mysql master-slave synchronization, how to ensure that the data of the master database and the slave database are consistent
What do you think are the risks in the transmission of information
When monitoring a server, what resources do you think should be monitored
The difference between symmetric encryption and asymmetric encryption
How to know whether the website service on a host is running
How to allow ordinary users of the system to have root privileges, and under what circumstances need to do so
What are the components of openstack?
How to quickly add a new virtual host when configuring httpd server
What are the commands to kill the process?
What is the principle of mysql
Note: The highest and lowest scores will be assessed for each assignment. Small partners who have performed well many times will be rewarded, and those who have the lowest score each time will be punished.
Second day exam questions
What does ELK stand for?
What are the characteristics of elasticsearch
What are the characteristics and functions of kibana
What are the characteristics and functions of logstash
What can ELK do?
What is ELK mainly used for during your use?
What are the clusters, nodes, documents, types and indexes in elasticSearch
What is sharding in elasticsearch?
What is the maximum amount of data processed by the bulk of es at one time
What is the automatic discovery mechanism of es?
es optimization
What are ELK's security plug-in, alarm plug-in, management and query plug-ins?
Which ELK mail plug-in uses
What kind of data are processed by the logstash input plugin and output plugin
How does nginx optimize
How many nodes does ansible use
What have been written in ansible playbook
What are the monitoring items of zabbix
Python which modules have you used
What shell scripts have you written
The third day exam questions
What projects have been deployed with docker
15 basic commands commonly used by docker
What are the network modes of docker?
What is the difference between docker and virtual machine
What is the traditional online process?
What is the difference between the three nginx lvs haproxy
Which way do you use redis persistence?
What is the difference between the two methods of redis persistence
Which method do you use for the redis cluster, how many servers
What protocol is keepalived based on
What are the LVS algorithms and which one do you use?
What is the difference between 301 and 302
What is the situation of 502, and what is the solution?
What is the principle of MySQL master-slave?
How to achieve MySQL data backup
How much data is backed up
How to ensure the reliability and integrity of the backup data
What version is gitlab updated to?
What are the two working modes of logstash
How to optimize the centos system
The most fearful thing is to do nothing in life, but also to comfort myself as ordinary and precious!
4 exam questions
DNS schematic
What is the role of DNS polling?
What do recursive query and iterative query mean?
In the current directory and subdirectories, search for txt files beginning with a capital letter
Search all files that have been accessed in the last seven days
Search for files accessed more than seven days ago
What are the advantages of nginx over apache
How does nginx handle requests
What do the forward proxy and reverse proxy of nginx mean?
What is Web Hosting
Which modules of nginx have you used
How to check whether the configuration file is correct in nginx
Nginx reload configuration file command
What does nginx status code 499 mean?
What are the possible reasons for the nginx status code 502 error?
How to do nginx tuning
What is the difference between fastcgi and cgi
What are the algorithms of nginx load balancing?
What should I do if the session is out of sync when using nginx?
How does nginx realize anti-leech
Why do dynamic and static separation?
5-day exam questions
Time flies so fast, in a blink of an eye, halfway through the holiday, every question here was once an interview question encountered by your brothers and sisters during the interview process. Take it seriously.
How to set MySQL slow query
What are the MySQL storage engines
Briefly describe the difference between the two common MySQL engines
What are the four isolation levels defined by the SQL standard?
What are the backup methods or schemes for MySQL backup
Which parameters are monitored by the zabbix monitoring database
How does MySQL master-slave consistency check
The difference between truncate delete drop
The realization principle or mechanism of reids
Your company's redis architecture
What is the purpose of $? in shell scripts
How to debug a shell script
How to deal with MySQL out of sync
The reason why MySQL master-slave is not synchronized
How to modify the maximum file handle limit of Linux
The idea of writing shell scripts to monitor MySQL master and slave
The idea of writing shell scripts to monitor whether all IPs are alive
Thoughts on writing shell scripts to prevent ddos attacks
Tell me about the thing you are most proud of at work
Tell me about the three most difficult things you have encountered at work
Live in the moment, your hard work will not be wasted!
6-day exam questions
Where is your server?
What products have Alibaba Cloud used
SLB is based on several layers of load balancing
Why do log cutting
NGINX has several working modes, which ones are
What is the version of tomcat
What data does Redis use to cache in your company
What is the company's product and how many are registered
What modules have been used in Python
What's your reason for leaving
What do you think about overtime
How do you understand the position of operation and maintenance
What do you think about business trip
What is your salary structure
What proportion do you pay for the five social insurances and one housing fund?
What are the versions of OpenStack
What are the components of OpenStack
If you are hired, how do you plan to carry out your work
What are your career plans for the future
What new technology do you usually learn
What technical books have you read recently? Tell me about the name of the book
7 day exam questions
What is your company's storage
How to do nginx log cutting
Do I need to restart during backup?
What optimizations did nginx do
What optimizations have been made to the newly installed system
MySQL has three binlog formats, what is recommended
How to query the database when the response is slow
After MySQL data is deleted by mistake, what methods or means have you tried to recover the data?
The principle of three handshake and four waves
How memcached works
radi principle
The role and principle of consistent hashing algorithm
How to solve too many sleep threads in MySQL
In a one-master, multiple-slave environment, the slave database is down. How do you recover?
What are the MySQL cluster and high-availability solutions, and which solutions have you used in your company?
iptables workflow and rule filtering order
How many tables and chains does iptables have
What indicators should a web server monitor
What do daily inspections do?
raid10 raid5 raid1 What is the difference, what are the advantages
Technologist blog who have you followed
8th day exam
Please briefly describe the difference between soft and hard links
What are inode and block, please briefly explain
Insufficient disk space, how to use condensed to find out which file occupies too much disk
What do the -n -r parameters of the sed command mean?
If you purchase a hard disk, what processing needs to be done before the disk can be used normally
Please tell the meaning of these symbols >>> 2> 2>> #.… $ | &&
If the hard disk of the Linux server is 300G and the memory is 16G in the enterprise, how to partition the hard disk
Resolve the concepts of IP address, subnet mask, gateway address, and port in the network
Standard workflow for operation and maintenance personnel
Answer: Check before operation, backup before operation, perform operation process, confirm after operation, write operation document
OSI seven-layer mode is that seven-layer
The difference between 301 and 302 jumps
What did the last company do?
What is the business of the company before
How much is the database growth
What work and responsibilities are you mainly responsible for in the last company
What can you bring to our company if you join the company?
What is the most impressive failure you have dealt with
What is your best technique
What do you do in your daily work
What else do you want to ask me?
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