Friday, 8 January 2021

Top 50 Linux Commands for SDET/Software QA and DevOps Interview question Set - 04? Linux Commands for Admin Profile 2021?

"Linux FUN FACTS"100% of the world’s 500 fastest supercomputers run Linux.

Let's learn Linux commands for SDET/QA/DevOps profile, do check previous posts with 40+ Linux commands and make your own cheat sheet with the entire list.
Happy Learning!

Linux Commands Set-01 for SDET/DevOps INterview Questions

Linux Commands Set-02 for SDET/DevOps

Linux Commands set-03 for SDET/DevOps Interview Questions

45. Cron- set up scheduled tasks to run.
want to know more about cron job with examples: https://en.wikipedia.org/wiki/Cron#CRON_expression
46. nmcli – network management.
47. ping – send ICMP ECHO_REQUEST to network hosts.
48. traceroute – Click Here For Answer
49. mtr – network diagnostic tool.
50. nslookup – Click Here For Answer
51. host – perform DNS lookups in Linux.

Top 21 GIT interview questions: Click Here

52.fdisk – Click Here For Answer
53. wget – retrieve files over HTTP, HTTPS, FTP, and FTPS.
54. curl – transferring data using various network protocols. (supports more protocols than wget)

Know About DevOps-Click Here

55. dd – convert and copy files.
56. nc – Click Here For Answer
57. parted – for creating and manipulating partition tables.

Top Kubernetes Commands-Click Here

58. blkid – command-line utility to locate/print block device attributes.
59. mkfs – build a Linux file system.
60. fsck – Click Here For Answer

What is Kali Linux:

Kali Linux is a Debian-based Linux distribution aimed at advanced Penetration Testing and Security Auditing. Kali Linux was released on the 13th March 2013 as a complete, top-to-bottom rebuild of BackTrack Linux, adhering completely to Debian development standards.
Refer the link to learn more on Kali Linux: https://www.kali.org/docs/introduction/what-is-kali-linux

ncdu – a disk utility for Unix systems.
touch – used to update the access date and/or modification date of a computer file or directory.

Linux Commands Set-01 for SDET/DevOps INterview Questions

Linux Commands Set-02 for SDET/DevOps

Linux Commands set-03 for SDET/DevOps Interview Questions

What is LILO in Linux?

LILO (Linux Loader) is basically a bootloader for Linux that is used to load Linux into memory and start the OS. It is also known as a boot manager that facilitates a dual boot of a computer. It can function as either a master boot program or secondary boot program and performs various functions such as locating kernel, identifying other supporting programs, loading memory, and starting the kernel. If you want to use Linux OS, then you need to install a special bootloader i.e., LILO for it as it allows fast boot of Linux OS.

Python Interview Question Set for QAE - SDET - SDE:
https://automationreinvented.blogspot.com/search/label/Python

Check below link for question SET-01&02:
Top API Interview Question 1-10
Top API INterview Questions 11-20

To check API related topics and interview tips check below and keep reading:
Most Asked API Question For SDET
Want to learn more? ...Check below link for more interview question:

SeleniumWebdriver Automation Testing Interview Questions:
https://automationreinvented.blogspot.com/search/label/SeleniumWebdriver

API Testing Interview Question Set:
https://automationreinvented.blogspot.com/search/label/Rest-API

Kubernetes Interview Question Set
https://automationreinvented.blogspot.com/search/label/Kubernetes

Docker Interview Question Set
https://automationreinvented.blogspot.com/2020/02/top-18-docker-commands-for-aytomation.html

Linux Interview question Set
https://automationreinvented.blogspot.com/search/label/Linux

Automation Testing/SDET Framework Design
https://automationreinvented.blogspot.com/search/label/FrameworkDesign

Java Related Interview Question Set
https://automationreinvented.blogspot.com/search/label/Java

GIT Interview Question Set:
https://automationreinvented.blogspot.com/search/label/GIT

Coding Interview Question Set:
https://automationreinvented.blogspot.com/search/label/Coding%20Questions

Monday, 4 January 2021

Java Interview Questions for SDET/Automation Testing? MUST KNOW CONCEPT

For Automation Testing and SDET profile, two concepts of Java are very important: List & Array. Let's try to explore some of the concepts below.

Check out the questions from 1 to 10 below:

Qus Set - 1 to 10

Question set 11 to 20:
Qus Set - 11 to 20

Question set 21 to 30:

Qus Set - 21 to 30

Question set 31 to 40:

Question Set 31-40

Question set 41 to 50:

Q&A Set 41-50

Let's assume we have below arraylist:

ArrayList<String> arrlst = new ArrayList<>();

How to convert List to array and array to list?

Click here for Answer

How to remove a SubList from a List in Java ?

Ans: List.subList(int fromIndex, int toIndex).clear()
How to do Sorting of An Array?

Click Here For Answer
Difference between ArrayList and HashMap in Java?

==>ArrayList implement List Interface while HashMap is an implementation of Map interface.

==>ArrayList maintains the insertion order while HashMap does not maintain insertion order.

==>ArrayList allows duplicate elements while HashMap doesn’t allow duplicate keys but does allow duplicate values.
How to add element to arrlst?

Ans: arrlst.add(element);

Does list maintains insertion order?

Ans: Both the ArrayList and LinkedList maintain the elements insertion order which means while displaying ArrayList and LinkedList elements the result set would be having the same order in which the elements got inserted into the List.

Top Kubernetes Commands-Click Here
How to get length of Array and List?

Click Here For Answer

How to add element at any index?

Ans: arr.add(index,element);

Difference between ArrayList and LinkedList?

Ans: Click here for answer with explanation

How to get element or index in arrlst?

Ans: arr.get(element);
arr.get(index);
How to Declare, Create and Initialize Array on same line
Click Here For Answer
How to remove element and index in arrlst?

Ans: arr.remove(element); //returns boolean value
arr.remove(index);//returns boolean value

Know About DevOps
How to get duplicate elements in an array?Very Imp
Click Here For Code
How to set a specified value to a specified index of arrlst?

Ans: arr.set(index,element);
Difference between an array and an ArrayList in Java?

Ans: The main difference between array and ArrayList is that the array is static and the arraylist is dynamic. We cannot change the size of the array once created, but ArrayList can increase its size automatically.
Explore more java related questions : Click here for Java Coding Q&A
Bonus Questions:
--> Difference between arraylist and linkedlist?
Click Here For Answer

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Selenium Interview Question SET-1
Selenium Interview Question SET-2
Selenium Interview Questions SET-3
Selenium Interview Question SET-4