INSTALLATION Q & A - 2

INSTALLATION  INTERVIEW QUESTIONS AND ANSWERS

PAGE - 2

11..What is BASH?

BASH is short for Bourne Again SHell. It was written by Steve Bourne as a replacement to the original Bourne Shell (represented by /bin/sh). It combines all the features from the original version of Bourne Shell, plus additional functions to make it easier and more convenient to use. It has since been adapted as the default shell for most systems running Linux

12..What is Linux Kernel?

The Linux Kernel is a low-level systems software whose main role is to manage hardware resources for the user. It is also used to provide an interface for user-level interaction

              

13..What are all the various parts of an operating system?

Linux is operating systems consist of a kernel and some system programs. There are also some application programs for doing work. The kernel is the heart of the operating system. In fact, it is often mistakenly considered to be the operating system itself, but it is not. An operating system provides  many more services than a plain kernel.

14..Explain kernel ?

The Linux kernel consists of several important parts: process management, memory management, hardware device drivers, file system drivers, network management, and various other bits and pieces some of them.

15..Why we Choose Linux?

Size and speed: A basic Linux installation can consume as little as 475MB of hard disk space and will run

Security: One significant reason for Linux's excellent reputation as a secure environment is that its source code is completely accessible

Standards and support: Linux's compliance with both Unix standards allows it to interoperate with a number of different operating systems and file systems

GNU software support

Cost: Linux is freely available

16..What are the Linux boot files?

A   ./boot/grub/grub.conf: contains boot disk parameters
B   ./etc/fstab: contains File systems which need to mount at boot time
C   ./etc/initab: Contains default run level
D   ./etc/init.d/rc.d/rcN.d: This is a dir it contains

17..Which account is created when you install Linux?

Super user account   or the  root user account

18..Explain about  the root account.?

The root account is like a systems administrator account, and allows you full control of the system. Here you can create and maintain user accounts, assigning different permissions for each account. It is the default account every time you install Linux.

19..How to check which kernel module is installed?

 lsmod

20..What is the  difference between LILO and GRUB?

LILO  is a boot strap program and its stands for Linux loader.  lilo knows how to locate kernel and load that kernel. configuration file is /etc/lilo.conf   If you never need to make changes at boot time, then LILO will work just fine for you. .

GRUB stands for GRand Unified Boot loader and is a GNU Boot loader that can boot a variety of operating systems from Linux, , DOS, NT 3.51 etc. Its config file is usually in /boot/grub and might be called grub.conf or menu.lst. When you change the config file, you merely reboot to read the changes. The structure of the config file is very different than that of LILO, even though they each convey essentially the same information. When you boot with GRUB, you have a vast array of options available to you. If you ever find that you need to make changes at boot time, usually you will find GRUB more useful