Monday, September 28, 2015

FILESYSTEM Q & A PAGE - 2

FILESYSTEM  INTERVIEW QUESTIONS AND ANSWERS
PAGE - 2
11..Where the  system configuration files  stored in the linux sever?
/etc
12..Where  the file . bashrc is  located?

The . bashrc file is locataed in the /home/username directory.

13..How to remove  the file system?
unmount  /mountpoint
delete  the appropriate entry in  /etc/fstab
rmdir  /mountpoint   
14..What is the use of encrypted file system ?
An encrypted filesystem will protect against bare-metal attacks against a hard drive
15..How can    you create the  ext4 filesystem?
# mke2fs   -t  ext4 /dev/dev_name

16..What is btrfs?

B-tree file system was developed by multiple companies as follows Oracle, Redhat, Fujitsu, Intel, Facebook, Linux Foundation, Suse, etc. Brtfs will support maximum up-to 16 exbibyte and filesize can be maximum up-to 8 exbibyte, due to limitation of kernel.

Files can be created in any characters except “/” and NULL. Btrfs has self-healing features and have the capability of spanning multiple volumes
17..How to install  the btrfs filesystem?
# yum install -y btrfs-progs
18..How  to  create a btrfs filesystem?
# mkfs.btrfs /dev/sdd
 19..How to resize the  btrfs filesystem?
# btrfs filesystem resize -500m  /dev/sdd
20..What is NFS?
Network File System (NFS) is the traditional way on Unix and
Linux for remote hosts to be able to mount filesystems over a network and interact
with them as if they were mounted locally
21..Explain the different  filesystems  and its  usage ?
Filesystem
 Description
ext
 Linux Extended filesystem—the original Linux filesystem
ext2
Second extended filesystem, provided advanced features over ext
ext3
 Third extended filesystem, supports journaling
ext4
Fourth extended filesystem, supports advanced journaling
hpfs
 OS/2 high-performance filesystem
iso9660
 ISO 9660 filesystem (CD-ROMs)
nfs
 Network File System
ntfs
 Support for Microsoft NT filesystem
ReiserFS
 Advanced Linux file system for better performance and disk recovery
smb
 Samba SMB filesystem for network access

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