Just released Netease Linux operation and maintenance interview questions (with answers)

1, Linux system, user file descriptor 0 means ().

2. An executable file in 2.Linux system belongs to root and has suid permission. When an ordinary user lutixia runs this program, what are the effective users and actual users of the generated process? ()

3. Which of the following commands can print lines containing chrome in a file (access.log) to standard output ()?

4. In the Linux environment running on a multi-core processor, if the critical segment is short and thread context switching is not allowed, which of the following mechanisms can meet the above requirements with the best performance? ()

5, with many functions of C language, also called filter? ()

6. In the OSI model, the HTTP protocol works at the () layer and the switch works at the () layer.

7. How to get the return code of the last command execution? ()

8. Which of the following statements about network programming is wrong? ()

9. There are two files A and B in the current directory. Execute the command "ls>C". What is the content in document C? ()

10, which of the following commands can be used to view the default route of Linux hosts ()?

1 1, among the following memory management modes, () will generate foreign scores.

12, vsftpd service flow control parameter ()

13. What are the communication methods between processes? ()

14. On Linux, for multiple processes, which of the following does the child process inherit from the parent process? ()

15, about the load of Linux system, the following statement is correct ().

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