linux kernel tuning interview questions

customizable courses, self paced videos, on-the-job support, and job assistance. Ans: There are three kinds of modes in vi editors. Linux is developed by a worldwide Linux community. Then, we would run the following command: The ext3 file system is an enhanced version of the ext2 file system. How do you combine two lines from two sorted files in Linux? Ans: We have two commands to check which ports are in listening in Linux Server. Ans: env command allows users to set or print the environment variables. The variable can be set using the following: It is used to search for the shared objects/dynamic libraries by the operating system for extendable functionality at the runtime. Generally, users don't need every logline to troubleshoot. If you wish to become a Linux professional in a reputed organization, then this is the right platform to prepare for your job interview. Expert Linux professionals are in high demand. Ans:  rm command: The rm command is used to remove directory or file specified on the command line. 4) what is limitation of cooperative multitasking. Ans: It is a form of redirection that is used in Linux, it is used to combine more than two commands and the output of one command can take as input to the next command. This netstat command shows network ports in use and their incoming connections. There are many differences between Cron and Anacron as given below: The repquota command is used to check the status of a user’s defined quota, along with the disk space and the number of files used. User can create multiple directories at once and can set the permissions to the directories. Ans: Locking user account is done for the security purpose so that unauthorized users cannot login. With the help of the sar command, we can see the CPU utilization and other stats. 72. Below is list of some of the questions. Minimum granularity with Cron is in minutes, while it is in days with Anacron. It will move the Ram inactive pages to the swap space. Linux is an operating system, which is based on Linux Kernel. Ans: This command show free space on mounted file systems. 4) What are different state of a process in lunix. How to remove file or directory from the system in Linux? Here we have compiled Linux Interview Questions and Answers and presented in this blog based on the opinion of Linux Experts. Compare Linux with Windows. 18. It sends data across the network in plain text format, and anybody can easily find out the password using the network tool. Mindmajix - The global online platform and corporate training company offers its services through the best Learn Linux from Intellipaat's Linux Training to fast-track your career! This is done mainly for security as it restricts files from unwanted access. Ans: ps command display the current process status of the system. Ans: This command is used to change the permission of files and directories. What does sar provide? Ans:  To display the default route and routing table, we use the following commands. Ans: It is a centralized server which does not have any exists states on the working station. Yes! 3) how threads are implemented in linux kernel. Ans: It is one of the basic commands in Linux. Ans: ls - ISr command shows files by size, biggest file will be displayed last. [root@node213 ~]# … Ans: Launch your terminal by pressing CTRL+ALT+T or by giving terminal in the menu search bar. Required fields are marked *, A Linux Administrator assigns a POP3 mail-only account to the. 91. Cron is ideal for servers, while Anacron is ideal for both desktops and laptops. It offers performance improvement and redundancy by increasing network throughput and bandwidth. What are the Advantages and Disadvantages of the Open-source Operating System? Kudzu is used to detect new hardware. Ans: LILO means Linux Loader is a boot loader that is used for the Linux operating system. 98. here tells us that this particular file is a hidden. By default, the main system log is /var/log/messages. With performance problems, sar also permits retroactive analysis of the load values for various sub-systems (CPUs, memory, disks, interrupts, network interfaces, and so on). How do you limit memory usage for commands? Ans: Redirection can be defined as changing the standard input and output devices. It is also used to identify the directories that need to be searched for; in order to do this, the path to search for the directories needs to be specified. removes variable NAME from the environment. By providing us with your details, We wont spam your inbox. Q8. 39. How to check the default route and routing table? Ans: The rmdir is used to remove each directory specified on the command line. Describe how a parent and child process communicates each other? We can use it without passing the arguments, then it will list all the files in the current working directory. It acts as a bridge between software and hardware.

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