Interview Questions on Red Hat Cluster with Answers

How can you define a cluster and what are its basic types? A cluster is two or more computers (called nodes or members) that work together to perform a task. There are four major types of clusters: Storage High availability Load balancing High performance What is Storage Cluster? Storage clusters provide a consistent file system … Read more

Interview Questions on VMware ESXi with Answers

1. What is a Hypervisor? It is a program that allows multiple operating systems to share a single hardware host. Each operating system appears to have the host’s processor, memory, and other resources all to itself. However, the hypervisor is actually controlling the host processor and resources, allocating what is needed to each operating system … Read more

Interview Questions on Linux Servers with Answers

How can you create a password less connection between multiple Linux machine? To create a password less authentication we need to use RSA or DSA key authentication. RSA and DSA are used as an algorithm for public-key encryption RSA keys have minimum key length of 768 bits and the default length is 2048 bit.The key … Read more

Linux Interview General Questions with Answers

Explain in detail the Linux booting procedure When a Linux machine is powered on BIOS loads up first. It will prompt you to select boot device which can be Hard disk, CD-ROM, Floppy drive, Network etc. By default generally it will boot with hard disk Next comes your MBR. This will load and execute the GRUB boot loader … Read more

Interview Questions on Linux Permissions with Answers

1.What is the difference between SUID and SGID? Understanding special permission SUID Understanding special permission SGID   2. What is Sticky Bit permission? Understanding special permission Sticky Bit   3. What is umask? In computing, umask is a command that determines the settings of a mask that controls which file permissions are set for files … Read more

Interview Questions on Linux Networking with Answers

1. How do you perform NIC teaming? For more details: Step by Step Guide to configure NIC Teaming in Linux   2. What is the difference between TCP and UDP protocol? TCP is a connection oriented protocol and contain the information of sender as well as receiver. Eg: HTTP.FTP, Telnet TCP is slower than UDP … Read more