Interview Questions.

Q1. When You Install Apache, What Is The Default Web Port Used To Serve Web Pages To Public Viewers?

Most internet servers run on port eighty, and Apache defaults to port eighty when you installation the software program. You can use an alternative port, but this forces the person to type a port into the browser once they get admission to the website. The different popular port for web applications is port 8080.

Q2. How We Will Check Free Space On Drive /dev/sda With Parted Command?

#parted /dev/sda

print.

Q3. What Are Lvm1 And Lvm2?

LVM1 and LVM2 are the versions of LVM.

LVM2 makes use of tool mapper motive force contained in 2.6 kernel model.

LVM 1 changed into included within the 2.4 collection kernels.

Q4. What Is Volume Group (vg)?

The Volume Group is the highest stage abstraction used in the LVM. It gathers collectively a set of Logical Volumes and Physical Volumes into one administrative unit.

Q5. What Are The Steps To Create Lvm?

Create physical volumes by means of “pvcreate” command :

#pvcreate /dev/sda2

Add bodily extent to extent organization with the aid of “vgcreate” command :

#vgcreate VLG0 /dev/sda2

Create logical quantity from volume group with the aid of “lvcreate” command :

#lvcreate -L 1G -n LVM1 VLG0

Now create report gadget on /dev/sda2 partition via “mke2fs” command :

#mke2fs -j /dev/VLG0/LVM1

Q6. What Is The Total Number Of Primary Partitions You Can Have On One Drive In Linux Red Hat?

You may have four number one walls in Linux. This includes Red Hat and any other working system.

Q7. What Is Logical Extent (le)?

Each logical extent is break up into chunks of data, called logical extents. The volume length is the same for all logical volumes within the volume institution.

Q8. What Is Red Hat Network?

Red Hat Network : A structures management platform offering lifecycle management of the working machine and packages.

Installing and provisioning new structures.

Updating structures.

Managing configuration files.

Monitoring overall performance.

Redeploying systems for a new cause "Hosted" and "Satellite" deployment architectures.

Q9. What Is The Difference Between Lvm And Raid?

RAID affords redundancy but LVM doesn’t offer Redundancy.

Q10. How Do You Identify The Ip Address Assigned To The Box?

The ipconfig command tells you the IP for the laptop.

Q11. Explain Lvm Snapshot?

LVM snapshots permit the administrator to create a new block tool which offers an genuine replica of a logical extent, frozen in some unspecified time in the future in time.

Q12. What Are Some Commands That You Can Use To Create A New User To Your System?

There are three commands you can use to feature a consumer. The three commands are useradd, adduser, and linuxconf.

Q13. What Is The Standard Directory Used To Store User Html Website Files?

First, you want to put in Apache, and Apache units a default directory for public HTML documents. The fashionable listing is /var/www/html.

Q14. How Do You Identify Which Version Of Red Hat Is Installed On The Server?

Open a Red Had shell command line and kind /etc/redhat-launch to identify the release model for Red Hat.

Q15. What Command Is Used To Remove The Password Assigned To A Group?

Gpasswd -r.

Q16. What Is The Meaning Of Red Hat?

Red Hat Enterprise Linux (RHEL) is a distribution of the Linux working machine advanced for the commercial enterprise marketplace. RHEL turned into previously known as Red Hat Linux Advanced Server.

Q17. What Command Should You Use To Check The Number Of Files And Disk Space Used And Each User's Defined Quotas?

Repquota.

Q18. What Is Physical Extent (pe)?

Each bodily quantity is divided chunks of data, known as physical extents; those extents have the equal length because the logical extents for the volume institution.

Q19. What Are The Process States In Unix?

As a system executes it modifications country according to its situations. Unix processes have the subsequent states:

Running : The manner is both going for walks or it is ready to run .

Waiting : The procedure is awaiting an occasion or for a resource.

Stopped : The system has been stopped, generally by way of receiving a signal.

Zombie : The manner is dead but have not been eliminated from the process desk.

Q20. How Can You Rename A File In Red Hat Linux?

Open the Red Hat Linux shell command line and use the mv command. The mv command takes the course to the authentic document and the direction to the newly named file inside the parameters. If you don’t specify the parameters, the mv command will ask you for them.

Q21. How Do You Access Mysql On Red Hat?

Go to the shell activate and type mysql. Linux appears up the facts contained in /var/mysql/mysql.Sock and connects to the port listed in the sock document. If the port is blocked or mysql isn’t mounted on the device, Red Hat Linux returns an errors.

Q22. What Are The Objectives Of Red Hat Linux?

A user who can use efficaciously employ Red HatEnterprise Linux to personalize his or her operating environment in addition to accomplish not unusual commandline duties and laptop productivity roles.

Q23. What Type Of Remote Software Can You Use To Encrypt Communication But Control Your Server?

SSH is a far flung computing device software that helps you to remotely control the Red Hat server using a command line but additionally encrypts the records across the Internet. SSH uses port 22, so you ought to open this port whilst you set up Red Hat.

Q24. What Is 'inode'?

All UNIX files have its description stored in a structure referred to as 'inode'. The inode carries information approximately the document-size, its location, time of closing get entry to, time of remaining change, permission and so on. Directories are also represented as files and feature an related inode.

Q25. Tell Me The Steps To Remove The Swap File?

Firstly disable the switch report by means of “swapoff” command.

Remove Swap document access from /etc/fstab record.

Now take away the swap record by means of “rm” command.

Q26. What Is A Linux Server Used For?

A Linux server is a excessive-powered version of the Linux open source working device it's designed to address the greater annoying needs of business programs including network and device administration, database management and Web services.

Q27. What Is Lvm?

LVM stands for Logical Volume Manager. LVM, is a storage management answer that permits directors to divide tough power area into bodily volumes (PV), that can then be combined into logical quantity businesses (VG), which are then divided into logical volumes (LV) on which the filesystem and mount factor are created.

Q28. What Can You Type At A Command Line To Determine Which Shell You Are Using?

Echo $SHELL.