Atos Application Support Engineer Interview Questions and Answers

Q1. About splunk topics. Thry asked sbout alerts, reports snd dashboards
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Q2. Unix commands and shell scripting and few scenarios
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Q1. Package discussion and about the shift
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Reverse string
java
linux

Q1. What is your current role in organization
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Q2. What is your salary expeactation
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It is a computer base test and we have numerical, verbal and logical reasoning question will be their

Discussion between a group of participants on a given topic

Q1. Tell me about yourself
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Q2. Why should we hire you
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Q1. What programming languages are know by me
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Q2. Asking question on our familiar programming language
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Round duration - 40 Minutes
Round difficulty - Medium

In this round , I was grilled on some fundamental concepts of Linux. The interviewer was however quite friendly and helped me whenever I was stuck on a problem.

Q1. Linux Question
What is LVM and why is it required?
Ans. 
1) LVM (Logical Volume Management) is basically a tool that provides logical volume management for the Linux kernel. It is being introduced simply to make physical storage device management easier. 

2) It also includes allocating disks, striping, mirroring, resizing logical volumes. Its main advantages are increased abstraction, flexibility, and control. 

3) It simply allows for flexible disk space management. ...read more
Answered by CodingNinjas
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Q2. Linux Question
What is a “/proc” file system?
Ans. 
Proc file system is a pseudo or virtual file system that provides an interface to the kernel data structure. It generally includes useful information about processes that are running currently. It can also be used to change some kernel parameters at runtime or during execution. It is also regarded as a control and information center for the kernel. All files under this directory are named virtual files.
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Q3. Linux Question
How do you check how much space left in current drive ?
Ans. 
By using "df" command in UNIX. For example "df -h ." will list how full your current drive is.
Answered by CodingNinjas
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Q4. Linux Question
Write a command to print the lines that has the word "july" while ignoring the case.
Ans. 
grep -i july *
The option i make the grep command to treat the pattern as case insensitive.
Answered by CodingNinjas
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Q5. Linux Question
What is the meaning of a file that has 644 permission?
Ans. 
The 644 represents permission 110 for the owner, permission 100 for the group, and 100 for others which means read + write for an owner who creates that file, and read-only permission for the group and others.
Answered by CodingNinjas
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Q6. Linux Question
How do you find all the process which has opened a file in Linux?
Ans. 
You can use the lsof (list open files) command to find out the process which has a file handle on the particular file. It's a very useful command to check which process is reading a file. You can use the lsof command as shown below to find out all the processes :

$ lsof /home/someuser/somefile

This will list all the process which has opened this file. you can see the command, PID, user, and full file path to find out the
Answered by CodingNinjas
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Q7. Linux Question
Enlist the basic components of LINUX?
Ans. 
Linux operating system basically consists of 3 components. They are:

1) Kernel: This is considered as the core part and is responsible for all major activities of the Linux operating system. Linux Kernel is considered as free and open-source software that is capable of managing hardware resources for the users. It consists of various modules and interacts directly with the underlying hardware.


2) System Library: Most of ...read more
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Q8. Linux Question
List some important Crontab Commands used in Linux.
Ans. 
1) Install crontab : crontab -a filename
2) Edit the crontab : crontab -e
3) Command to view crontab entries of current user : crontab -l
4) To remove your crontab tasks : crontab -r
5) Command to execute a cron after every 5 minutes : */5* * * * * /scripts/script.sh

General Syntax for cron : minute(s) hour(s) day(s) month(s) weekday(s) command(s) "Argument1" "Argument2"
If you don't have parameter put star(*) 

Descripti...read more
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Round duration - 60 Minutes
Round difficulty - Medium

This round had questions mainly from Operating System and DBMS. I was also asked some basic SQL queries to execute on my machine.

Q1. OS Question
What is a Pipe and when it is used?
Ans. 
The pipe is generally a connection among two or more processes that are interrelated to each other. It is a mechanism that is used for inter-process communication using message passing. One can easily send information such as the output of one program process to another program process using a pipe. It can be used when two processes want to communicate one-way i.e., inter-process communication (IPC).
Answered by CodingNinjas
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Q2. OS Question
Explain any 5 essential UNIX commands .
Ans. 
1) ls -> Lists files in current directory
2) cd -> Change directory to tempdir
3) mkdir -> Make a directory called graphics
4) rmdir -> Remove directory (must be empty)
5) cp -> Copy file into directory
Answered by CodingNinjas
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Q3. OS Question
What do chmod, chown, chgrp commands do?
Ans. 
These are file management commands. These are used for :

chmod - It changes the permission set of a file
chown - It changes the ownership of the file.
chgrp - It changes the group of the file.

Example :
$ chmod g+w test
It changes permission for a user group to write.

$ chown adas1923 testfile
It changes the owner of testfile to adas1923.

$ chgrp moderators testfile
It changes a group of testfile to moderators.
Answered by CodingNinjas
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Q4. SQL Question
What is Cursor? How to use a Cursor?
Ans. 
A database cursor is a control structure that allows for the traversal of records in a database. Cursors, in addition,
facilitates processing after traversal, such as retrieval, addition, and deletion of database records. They can be
viewed as a pointer to one row in a set of rows.

Working with SQL Cursor:

1) DECLARE a cursor after any variable declaration. The cursor declaration must always be associated with a
SELECT Stat...read more
Answered by CodingNinjas
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Q5. SQL Question
Second Highest Salary
Ans. 
Approach : Sort the distinct salary in descend order and then utilize the LIMIT clause to get the second highest salary.

Query :

SELECT DISTINCT Salary
FROM Employee
ORDER BY Salary DESC
LIMIT 1 OFFSET 1;
Answered by CodingNinjas
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Q6. DBMS Question
What is the use of DROP command and what are the differences between DROP, TRUNCATE and DELETE
commands?
Ans. 
DROP command is a DDL command which is used to drop/delete the existing table, database, index or view from the
database.

The major difference between DROP, TRUNCATE and DELETE commands are :

DROP and TRUNCATE commands are the DDL commands which are used to delete tables from the database and
once the table gets deleted, all the privileges and indexes that are related to the table also get deleted. These 2
operations cannot...read more
Answered by CodingNinjas
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Q7. DBMS Question
What is meant by normalization and denormalization?
Ans. 
Normalization is a process of reducing redundancy by organizing the data into multiple tables. Normalization leads to
better usage of disk spaces and makes it easier to maintain the integrity of the database.


Denormalization is the reverse process of normalization as it combines the tables which have been normalized into a
single table so that data retrieval becomes faster. JOIN operation allows us to create a denormalize...read more
Answered by CodingNinjas
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Q8. DBMS Question
How to Take a Backup of a Table in MySQL?
Ans. 
Method 1 – Taking a Backup of a MySQL Table Using INSERT INTO

CREATE TABLE table_backup;
INSERT INTO table_backup SELECT * FROM table;

This method creates the structure of the table including indexes and then loading the data in via one statement.


Method 2 – Taking a Backup of a MySQL Table Using mysqldump

mysqldump -u{backup_user} -p{backup_password} from_db_name table_to_backup > backup_file.sql

The backup is taken usin...read more
Answered by CodingNinjas
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Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round .HR was very frank and asked standard questions. Then we discussed about my role.

Q1. Basic HR Question
Why are you looking for a job change?
Ans. 
Tip : For an experienced professional seeking a change, this is a common question. The easiest method to respond
to this question is to state that you are leaving your current work in order to advance your career. Make sure you don't
criticize or speak poorly about the company where you now work
Answered by CodingNinjas
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Q2. Basic HR Question
Tell me something not there in your resume.
Ans. 
If you get this question, it's an opportunity to choose the most compelling information to share that is not obvious from
your resume.

Example :

Strength -> I believe that my greatest strength is the ability to solve problems quickly and efficiently, which makes me
unique from others.

Ability to Handle Pressure -> I enjoy working under pressure because I believe it helps me grow and become more
efficient .


Tip : Emphasi...read more
Answered by CodingNinjas
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