Om Sai Polymer Interview Questions and Answers

NFS (Network File System) is a distributed file system protocol that allows a user on a client computer to access files over a network.

• NFS enables sharing of files and directories between multiple computers in a network.

• It provides transparent access to remote files as if they were local.

• NFS uses a client-server architecture where the server exports directories that can be mounted on client machines.

• It supports both read and write operations on shared files.

• NFS is commonly us...read more

LVM stands for Logical Volume Manager, a tool used to manage disk storage in Linux systems.

• LVM allows for dynamic resizing of logical volumes without downtime.

• It consists of physical volumes, volume groups, and logical volumes.

• Commands like pvcreate, vgcreate, lvcreate are used to create and manage LVM.

• LVM provides flexibility in managing storage space by allowing logical volumes to span multiple physical disks.

To rollback a package, use package manager to uninstall current version and install previous version.

• Use package manager to uninstall current version of the package

• Install the previous version of the package using package manager

• Check for any dependencies that may need to be rolled back as well

To remove older kernels in Linux, use package management tools like apt or yum.

• Use 'apt autoremove' command in Debian-based systems to remove old kernels

• Use 'yum remove ' command in Red Hat-based systems to remove old kernels

• Check available kernels with 'uname -r' command before removing

To mount NFS, use the 'mount' command with the NFS server IP address and the mount point on the local machine.

• Use the 'mount' command followed by the NFS server IP address and the mount point on the local machine

• For example: sudo mount 192.168.1.100:/shared_folder /mnt/nfs_share

• Ensure that the NFS server is properly configured and accessible from the local machine