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10+ Hydropure Systems Interview Questions and Answers

Updated 5 Feb 2024

Q1. If kernal stuck in update what we do

Ans.

If kernel stuck in update, we can try to reboot the system and check for any errors.

  • Try to reboot the system

  • Check for any errors

  • If the issue persists, try to boot into a previous kernel version

  • If all else fails, reinstall the kernel

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Q2. What's the patching & how to resolved

Ans.

Patching is the process of updating software to fix vulnerabilities or bugs. It can be resolved by applying the patch.

  • Identify the vulnerability or bug that needs to be fixed

  • Find the appropriate patch for the software version

  • Apply the patch to the system

  • Test the system to ensure the patch was successful

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Q3. How to configured apache server

Ans.

To configure Apache server, modify the httpd.conf file and add virtual hosts.

  • Edit the httpd.conf file located in /etc/httpd/conf/ directory

  • Add virtual hosts to the httpd.conf file to host multiple websites

  • Restart the Apache server using the command 'systemctl restart httpd'

  • Configure SSL/TLS certificates for secure connections

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Q4. What is pear in PHP ? What are difference between dynamic & statics website ? How to execute php script in command line ? What are rules of naming convention in php ?

Ans.

PEAR is a framework and distribution system for reusable PHP components.

  • PEAR stands for PHP Extension and Application Repository.

  • It provides a structured library of code for PHP developers.

  • PEAR packages can be easily installed and managed using the PEAR command-line tool.

  • Some popular PEAR packages include PHPUnit, HTML_QuickForm, and Mail.

  • Dynamic websites generate content on the fly, while static websites display the same content to all users.

  • PHP scripts can be executed in th...read more

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Q5. How to configured LVM

Ans.

LVM can be configured using the lvcreate, vgcreate and pvcreate commands.

  • Create physical volumes using pvcreate command

  • Create volume groups using vgcreate command

  • Create logical volumes using lvcreate command

  • Extend or reduce logical volumes using lvextend or lvreduce command

  • Mount the logical volumes to use them

  • Use the lvdisplay, vgdisplay and pvdisplay commands to view the LVM configuration

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Q6. How to setup local repository

Ans.

To setup local repository, create a directory, copy packages, create repo file, and run createrepo command.

  • Create a directory to store packages

  • Copy packages to the directory

  • Create a repo file in /etc/yum.repos.d/ directory

  • Add necessary information in the repo file

  • Run createrepo command to create repository metadata

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Q7. How to update the system

Ans.

Updating the system involves installing the latest security patches and software updates.

  • Use the package manager to update the system

  • For Debian-based systems, use apt-get update and apt-get upgrade

  • For Red Hat-based systems, use yum update

  • Regularly check for updates and install them promptly

  • Reboot the system after updating to ensure changes take effect

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Q8. How to setup ec2 server

Ans.

To setup an EC2 server, launch an instance, choose an AMI, select instance type, configure security group, and connect to the instance.

  • Login to AWS console and navigate to EC2 dashboard

  • Click on Launch Instance button

  • Choose an Amazon Machine Image (AMI)

  • Select an instance type and configure instance details

  • Configure security group and storage

  • Review and launch the instance

  • Connect to the instance using SSH or RDP

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Q9. How to setup elastic ip

Ans.

Elastic IP can be set up in AWS console or using AWS CLI.

  • Go to EC2 dashboard in AWS console

  • Click on Elastic IPs in the left navigation pane

  • Click on Allocate new address

  • Select the region and click Allocate

  • Associate the Elastic IP with an EC2 instance or a network interface

  • Alternatively, use AWS CLI command 'aws ec2 allocate-address' to allocate a new Elastic IP

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Q10. what is elastic trans corder

Ans.

Elastic Transcoder is a media transcoding service provided by AWS.

  • It converts media files from one format to another.

  • It supports a wide range of input and output formats.

  • It can be used to create adaptive bitrate streaming.

  • It can be integrated with other AWS services like S3, CloudFront, etc.

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Q11. what is snow ball ?

Ans.

Snowball is a physical data transport solution provided by AWS.

  • It is a secure and efficient way to transfer large amounts of data into and out of AWS.

  • It comes in two forms - Snowball and Snowball Edge.

  • Snowball can transfer up to 80TB of data while Snowball Edge can transfer up to 100TB of data and also has compute and storage capabilities.

  • It is ideal for transferring data in areas with limited or no internet connectivity.

  • Snowball uses tamper-evident enclosures, 256-bit encryp...read more

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Q12. what is ec2 server ?

Ans.

EC2 is a web service that provides resizable compute capacity in the cloud.

  • EC2 stands for Elastic Compute Cloud

  • It allows users to rent virtual computers on which they can run their own applications

  • Users can choose from a variety of instance types with different CPU, memory, and storage capacities

  • EC2 instances can be launched in multiple regions around the world

  • Users can also configure security and networking settings for their instances

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Q13. What are the common of PHP

Ans.

Common features of PHP include dynamic typing, easy integration with HTML, and extensive library support.

  • Dynamic typing allows for flexibility in variable types

  • Easy integration with HTML allows for server-side scripting

  • Extensive library support allows for efficient development

  • Other common features include object-oriented programming and database integration

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