Linux Interview Questions & Answers
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1.What is Linux? Linux is an operating system supported on UNIX system, and was initial introduced by Linus Torvalds. it's supported the Linux Kernel, and might run on completely different hardware platforms factorymade by Intel, MIPS, HP, IBM, SPARC and Motorola.
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2.What is BASH? BASH is short for Bourne once more SHell. it had been written by Steve Bourne as a replacement to the first Bourne Shell. It combines all the options from the first version of Bourne Shell, and extra functions to form it easier and additional convenient to use. it's since been tailored because the default shell for many systems running UNIX system.
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3.What is UNIX system Kernel? The UNIX system Kernel may be a low-level systems software whose main role is to manage hardware resources for the user. it's conjointly wont to give AN interface for user-level interaction.
4. What is LILO? LILO may be a boot loader for Linux system. it's used in the main to load the Linux system into main memory so it will begin its operations.
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5. What is a swap space? A swap space may be a certain quantity of space employed by Linux system to quickly hold some programs that area unit running at the same time. This happens once RAM doesn't have enough memory to carry all programs are executing.
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6.What are the basic components of Linux? Just like the other typical package, Linux system has all of those components: kernel, shells and GUIs, system utilities, and program. What makes Linux system advantageous over alternative OS is that each side comes with extra options and every one codes for these area unit downloadable for free.
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7.Describe the Root account? The root account is sort of a systems administrator account, and permits you full management of the system. Here you'll be able to produce and maintain user accounts, assignment completely different permissions for every account. it's the default account every time you install Linux.
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8.what is CLI? CLI is brief for Command line Interface. This interface permits user to sort declarative commands to instruct the pc to perform operations. CLI offers a bonus in this there's larger flexibility. However, alternative users United Nations agency area unit already change with mistreatment user interface notice it tough to recollect commands together with attributes that escort it.
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9. What is GUI? GUI makes use of pictures and icons that users click and manipulate as the simplest way of human action with the pc. rather than having to recollect and kind commands, the employment of graphical parts makes it easier to move with the system, similarly as adding additional attraction through pictures, icons and colours.
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10.What area unit symbolic links? Symbolic links act equally to shortcuts in Windows. Such links purpose to programs, files or directories. It conjointly permits you instant access to that while not having to travel on to the whole pathname.
11.What are Hard links? Hard links purpose on to the physical file on disk, and not on the trail name. this suggests that if you rename or move the first file, the link won't break, since the link is for the file itself, not the trail wherever the file is found.
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