Red Hat Interview Questions, Process, and Tips

Q1. Rhel Linux related wuestion
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Q2. What is linux how itboots
Ans. 
Linux is an open-source operating system kernel that manages hardware resources and provides services for user programs.
• Linux is a Unix-like operating system kernel developed by Linus Torvalds in 1991.

• It boots by loading the bootloader (such as GRUB) which then loads the kernel into memory.

• The kernel initializes the system, mounts the root filesystem, and starts the init process.

• The init process then starts other syste...read more
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Q1. Storage related questions
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Q2. How to boot system
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To boot a system, you need to power it on and load the operating system into memory.
• Power on the computer by pressing the power button

• The BIOS/UEFI firmware initializes hardware components

• The bootloader is loaded to start the operating system

• The operating system kernel is loaded into memory

• The system is now ready for use
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Q3. What is san and how it works
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SAN stands for Storage Area Network, a specialized high-speed network that connects servers to storage devices.
• SAN allows multiple servers to access shared storage resources like disk arrays or tape libraries.

• It provides block-level access to storage, allowing for efficient data transfer.

• SANs are typically used in enterprise environments for centralized storage management.

• Examples of SAN technologies include Fibre Chan
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Q1. How to create a partition
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To create a partition, you can use disk management tools in operating systems like Windows or disk utility in macOS.
• In Windows, you can create a partition by opening Disk Management, right-clicking on the unallocated space, and selecting 'New Simple Volume'. Follow the wizard to set up the partition.

• In macOS, you can use Disk Utility to create a partition by selecting the drive, clicking on the 'Partition' tab, and the...read more
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Q2. How to create & extend a LVM
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To create and extend a LVM, use tools like lvcreate, lvextend, and resize2fs.
• Use lvcreate command to create a new logical volume

• Use lvextend command to extend an existing logical volume

• Use resize2fs command to resize the file system on the logical volume

• Ensure you have enough free space in the volume group before extending
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Q3. Explain boot process
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The boot process is the sequence of events that occur when a computer is turned on, leading to the operating system being loaded and ready for use.
• Power is turned on, triggering the BIOS to perform a Power-On Self Test (POST)

• BIOS checks hardware components and locates the boot device

• Boot loader is loaded from the boot device into memory

• Boot loader loads the operating system kernel into memory and hands over control to ...read more
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Q4. How to change home directory for new users
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To change home directory for new users, modify the useradd command with the -d flag.
• Use the useradd command with the -d flag followed by the desired home directory path

• For example: useradd -d /new/home/directory username

• Verify the changes by checking the /etc/passwd file or using the id command
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Q5. Any issues faced while booting up
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Yes, issues faced while booting up include slow startup, error messages, and hardware failures.
• Slow startup can be caused by too many startup programs or a failing hard drive.

• Error messages may indicate software conflicts or corrupted system files.

• Hardware failures such as a faulty RAM or motherboard can prevent the system from booting up properly.
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Q1. How many iphone users are there in Hyderabad.
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It is difficult to provide an exact number of iPhone users in Hyderabad without access to specific data.
• There is no official data available on the exact number of iPhone users in Hyderabad.

• One way to estimate the number of iPhone users in Hyderabad is to look at the market share of Apple in India and apply it to the population of Hyderabad.

• Another approach could be to conduct a survey or study specifically targeting iP
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Q1. Prepare a BRD and presentation.
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Q1. Basic SQL questions
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Q2. Advance Excel questions
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Q3. Moderate Python questions
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